---
description: "Pipeline for Cisco {< .internal_PREFIX >} logs"
processors:
  - set:
      field: event.ingested
      value: '{{_ingest.timestamp}}'
  #
  # Parse the syslog header
  #
  # This populates the host.hostname, process.name, timestamp and other fields
  # from the header and stores the message contents in log.original.
  - grok:
      field: message
      patterns:
        - "(?:%{SYSLOG_HEADER})?\\s*%{GREEDYDATA:log.original}"
      pattern_definitions:
        SYSLOG_HEADER: "(?:%{SYSLOGFACILITY}\\s*)?(?:%{FTD_DATE:_temp_.raw_date}:?\\s+)?(?:%{PROCESS_HOST}|%{HOST_PROCESS})(?:{DATA})?%{SYSLOG_END}?"
        SYSLOGFACILITY: "<%{NONNEGINT:log.syslog.priority:int}>"
        # Beginning with version 6.3, Firepower Threat Defense provides the option to enable timestamp as per RFC 5424.
        FTD_DATE: "(?:%{TIMESTAMP_ISO8601}|%{ASA_DATE})"
        ASA_DATE: "(?:%{DAY} )?%{MONTH}  *%{MONTHDAY}(?: %{YEAR})? %{TIME}(?: %{TZ})?"
        PROCESS: "(?:[^%\\s:\\[]+)"
        SYSLOG_END: "(?:(:|\\s)\\s+)"
        # exactly match the syntax for firepower management logs
        PROCESS_HOST: "(?:%{PROCESS:process.name}:\\s%{SYSLOGHOST:host.name})"
        HOST_PROCESS: "(?:%{SYSLOGHOST:host.hostname}:?\\s+)?(?:%{PROCESS:process.name}?(?:\\[%{POSINT:process.pid:long}\\])?)?"
  - script:
      lang: painless
      source: |
        if (ctx.log?.syslog?.priority != null) {
          def severity = new HashMap();
          severity['code'] = ctx.log.syslog.priority&0x7;
          ctx.log.syslog['severity'] = severity;
          def facility = new HashMap();
          facility['code'] = ctx.log.syslog.priority>>3;
          ctx.log.syslog['facility'] = facility;
        }

  #
  # Parse FTD/ASA style message
  #
  # This parses the header of an EMBLEM-style message for FTD and ASA prefixes.
  - grok:
      field: log.original
      patterns:
        - "%{FTD_PREFIX}-(?:%{FTD_SUFFIX:_temp_.cisco.suffix}-)?%{NONNEGINT:event.severity:int}-%{POSINT:_temp_.cisco.message_id}?:?\\s*%{GREEDYDATA:message}"
        # Before version 6.3, messages for connection, security intelligence, and intrusion events didn't include an event type ID in the message header.
        - "%{GREEDYDATA:message}"
      pattern_definitions:
        FTD_SUFFIX: "[^0-9-]+"
        # Before version 6.3, FTD used ASA prefix in syslog messages
        FTD_PREFIX: "%{DATA}%(?:[A-Z]+)"

  #
  # Create missing fields when no %FTD label is present
  #
  # message_id is needed in order for some processors below to work.
  - set:
      field: _temp_.cisco.message_id
      value: ""
      if: "ctx?._temp_?.cisco?.message_id == null"

  #
  # set default event.severity to 7 (debug):
  #
  # This value is read from the EMBLEM header and won't be present if this is not
  # an emblem message (firewalls can be configured to report other kinds of events)
  # This has no effect unless var.log_level is above 7 (default) to filter some
  # messages.
  - set:
      field: event.severity
      value: 7
      if: "ctx?.event?.severity == null"

  #
  # Drop messages above configured log_level
  #
  - drop:
      if: "ctx.event.severity > {< .log_level >}"

  #
  # Parse the date included in FTD logs
  #
  - date:
      if: "ctx.event?.timezone == null && ctx._temp_?.raw_date != null"
      field: "_temp_.raw_date"
      target_field: "@timestamp"
      formats:
        - "ISO8601"
        - "MMM  d HH:mm:ss"
        - "MMM dd HH:mm:ss"
        - "EEE MMM  d HH:mm:ss"
        - "EEE MMM dd HH:mm:ss"
        - "MMM  d HH:mm:ss z"
        - "MMM dd HH:mm:ss z"
        - "EEE MMM  d HH:mm:ss z"
        - "EEE MMM dd HH:mm:ss z"
        - "MMM  d yyyy HH:mm:ss"
        - "MMM dd yyyy HH:mm:ss"
        - "EEE MMM  d yyyy HH:mm:ss"
        - "EEE MMM dd yyyy HH:mm:ss"
        - "MMM  d yyyy HH:mm:ss z"
        - "MMM dd yyyy HH:mm:ss z"
        - "EEE MMM  d yyyy HH:mm:ss z"
        - "EEE MMM dd yyyy HH:mm:ss z"
      on_failure:
        [
          {
            "append":
              {
                "field": "error.message",
                "value": "{{ _ingest.on_failure_message }}",
              },
          },
        ]
  - date:
      if: "ctx.event?.timezone != null && ctx._temp_?.raw_date != null"
      timezone: "{{ event.timezone }}"
      field: "_temp_.raw_date"
      target_field: "@timestamp"
      formats:
        - "ISO8601"
        - "MMM  d HH:mm:ss"
        - "MMM dd HH:mm:ss"
        - "EEE MMM  d HH:mm:ss"
        - "EEE MMM dd HH:mm:ss"
        - "MMM  d HH:mm:ss z"
        - "MMM dd HH:mm:ss z"
        - "EEE MMM  d HH:mm:ss z"
        - "EEE MMM dd HH:mm:ss z"
        - "MMM  d yyyy HH:mm:ss"
        - "MMM dd yyyy HH:mm:ss"
        - "EEE MMM  d yyyy HH:mm:ss"
        - "EEE MMM dd yyyy HH:mm:ss"
        - "MMM  d yyyy HH:mm:ss z"
        - "MMM dd yyyy HH:mm:ss z"
        - "EEE MMM  d yyyy HH:mm:ss z"
        - "EEE MMM dd yyyy HH:mm:ss z"
      on_failure:
        [
          {
            "append":
              {
                "field": "error.message",
                "value": "{{ _ingest.on_failure_message }}",
              },
          },
        ]
  #
  # Set log.level
  #
  - set:
      field: "log.level"
      if: "ctx.event.severity == 0"
      value: unknown
  - set:
      field: "log.level"
      if: "ctx.event.severity == 1"
      value: alert
  - set:
      field: "log.level"
      if: "ctx.event.severity == 2"
      value: critical
  - set:
      field: "log.level"
      if: "ctx.event.severity == 3"
      value: error
  - set:
      field: "log.level"
      if: "ctx.event.severity == 4"
      value: warning
  - set:
      field: "log.level"
      if: "ctx.event.severity == 5"
      value: notification
  - set:
      field: "log.level"
      if: "ctx.event.severity == 6"
      value: informational
  - set:
      field: "log.level"
      if: "ctx.event.severity == 7"
      value: debug

  #
  # Firewall messages

  #
  # This set of messages is shared between FTD and ASA.
  - set:
      if: 'ctx._temp_.cisco.message_id != ""'
      field: "event.action"
      value: "firewall-rule"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106001'"
      field: "message"
      description: "106001"
      pattern: "%{network.direction} %{network.transport} connection %{event.outcome} from %{source.address}/%{source.port} to %{destination.address}/%{destination.port} flags %{} on interface %{_temp_.cisco.source_interface}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106002'"
      field: "message"
      description: "106002"
      pattern: "%{network.transport} Connection %{event.outcome} by %{network.direction} list %{_temp_.cisco.list_id} src %{source.address} dest %{destination.address}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106006'"
      field: "message"
      description: "106006"
      pattern: "%{event.outcome} %{network.direction} %{network.transport} from %{source.address}/%{source.port} to %{destination.address}/%{destination.port} on interface %{_temp_.cisco.source_interface}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106007'"
      field: "message"
      description: "106007"
      pattern: "%{event.outcome} %{network.direction} %{network.transport} from %{source.address}/%{source.port} to %{destination.address}/%{destination.port} due to %{network.protocol} %{}"
  - grok:
      if: "ctx._temp_.cisco.message_id == '106010'"
      field: "message"
      description: "106010"
      patterns:
      - "%{NOTSPACE:event.outcome} %{NOTSPACE:network.direction} %{NOTSPACE:network.transport} src %{NOTSPACE:_temp_.cisco.source_interface}:%{NOTSPACE:source.address}/%{POSINT:source.port} (%{DATA})?dst %{NOTSPACE:_temp_.cisco.destination_interface}:%{NOTSPACE:destination.address}/%{POSINT:destination.port}(%{GREEDYDATA})?"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106013'"
      field: "message"
      description: "106013"
      pattern: "Dropping echo request from %{source.address} to PAT address %{destination.address}"
  - set:
      if: "ctx._temp_.cisco.message_id == '106013'"
      field: "network.transport"
      description: "106013"
      value: icmp
  - set:
      if: "ctx._temp_.cisco.message_id == '106013'"
      field: "network.direction"
      description: "106013"
      value: inbound
  - grok:
      if: "ctx._temp_.cisco.message_id == '106014'"
      field: "message"
      description: "106014"
      patterns:
      - "%{NOTSPACE:event.outcome} %{NOTSPACE:network.direction} %{NOTSPACE:network.transport} src %{NOTSPACE:_temp_.cisco.source_interface}:%{NOTSPACE:source.address} (%{DATA})?dst %{NOTSPACE:_temp_.cisco.destination_interface}:(?<destination.address>[^ (]*)(%{GREEDYDATA})?"
  - grok:
      if: "ctx._temp_.cisco.message_id == '106015'"
      field: "message"
      description: "106015"
      patterns:
      - "%{NOTSPACE:event.outcome} %{NOTSPACE:network.transport} %{NOTSPACE} %{NOTSPACE} from %{IP:source.address}/%{POSINT:source.port} to %{IP:destination.address}/%{POSINT:destination.port} flags %{DATA} on interface %{NOTSPACE:_temp_.cisco.source_interface}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106016'"
      field: "message"
      pattern: "%{event.outcome} IP spoof from (%{source.address}) to %{destination.address} on interface %{_temp_.cisco.source_interface}"
      description: "106016"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106017'"
      field: "message"
      pattern: "%{event.outcome} IP due to Land Attack from %{source.address} to %{destination.address}"
      description: "106017"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106018'"
      field: "message"
      pattern: "%{network.transport} packet type %{_temp_.cisco.icmp_type} %{event.outcome} by %{network.direction} list %{_temp_.cisco.list_id} src %{source.address} dest %{destination.address}"
      description: "106018"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106020'"
      field: "message"
      pattern: "%{event.outcome} IP teardrop fragment (size = %{}, offset = %{}) from %{source.address} to %{destination.address}"
      description: "106020"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106021'"
      field: "message"
      pattern: "%{event.outcome} %{network.transport} reverse path check from %{source.address} to %{destination.address} on interface %{_temp_.cisco.source_interface}"
      description: "106021"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106022'"
      field: "message"
      pattern: "%{event.outcome} %{network.transport} connection spoof from %{source.address} to %{destination.address} on interface %{_temp_.cisco.source_interface}"
      description: "106022"
  - grok:
      if: "ctx._temp_.cisco.message_id == '106023'"
      field: "message"
      description: "106023"
      patterns:
      - ^%{NOTSPACE:event.outcome} ((protocol %{POSINT:network.iana_number})|%{NOTSPACE:network.transport}) src %{NOTCOLON:_temp_.cisco.source_interface}:%{IPORHOST:source.address}(/%{POSINT:source.port})?\s*(\(%{CISCO_USER:_temp_.cisco.source_username}\) )?dst %{NOTCOLON:_temp_.cisco.destination_interface}:%{IPORHOST:destination.address}(/%{POSINT:destination.port})?%{DATA}by access-group "%{NOTSPACE:_temp_.cisco.list_id}"
      pattern_definitions:
        NOTCOLON: "[^:]*"
        CISCO_USER: ((LOCAL\\)?(%{HOSTNAME}\\)?%{USERNAME}(@%{HOSTNAME})?)
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106027'"
      field: "message"
      description: "106027"
      pattern: '%{} %{event.outcome} src %{source.address} dst %{destination.address} by access-group "%{_temp_.cisco.list_id}"'
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106100'"
      field: "message"
      description: "106100"
      pattern: "access-list %{_temp_.cisco.list_id} %{event.outcome} %{network.transport} %{_temp_.cisco.source_interface}/%{source.address}(%{source.port})%{}-> %{_temp_.cisco.destination_interface}/%{destination.address}(%{destination.port})%{}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '106102' || ctx._temp_.cisco.message_id == '106103'"
      field: "message"
      description: "106103"
      pattern: "access-list %{_temp_.cisco.list_id} %{event.outcome} %{network.transport} for user %{user.name} %{_temp_.cisco.source_interface}/%{source.address}(%{source.port})%{}-> %{_temp_.cisco.destination_interface}/%{destination.address}(%{destination.port})%{}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '111004'"
      field: "message"
      description: "111004"
      pattern: "%{source.address} end configuration: %{_temp_.cisco.cli_outcome}"
  - set:
      field: event.outcome
      description: "111004"
      value: "success"
      if: "ctx._temp_.cisco.message_id == '111004' && ctx?._temp_?.cisco?.cli_outcome == 'OK'"
  - set:
      field: event.outcome
      description: "111004"
      value: "failure"
      if: "ctx._temp_.cisco.message_id == '111004' && ctx?._temp_?.cisco?.cli_outcome == 'FAILED'"
  - remove:
      field: _temp_.cisco.cli_outcome
      ignore_missing: true
  - append:
      field: event.type
      description: "111004"
      value: "change"
      if: "ctx._temp_.cisco.message_id == '111004'"
  - grok:
      if: "ctx._temp_.cisco.message_id == '111009'"
      description: "111009"
      field: "message"
      patterns:
      - "^%{NOTSPACE} '%{NOTSPACE:user.name}' executed %{NOTSPACE} %{GREEDYDATA:_temp_.cisco.command_line_arguments}"
  - grok:
      if: "ctx._temp_.cisco.message_id == '111010'"
      field: "message"
      description: "111010"
      patterns:
      - "User '%{NOTSPACE:user.name}', running %{QUOTEDSTRING} from IP %{IP:source.address}, executed %{QUOTEDSTRING:_temp_.cisco.command_line_arguments}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '113019'"
      field: "message"
      description: "113019"
      pattern: "Group = %{source.user.group.name}, Username = %{source.user.name}, IP = %{destination.address}, Session disconnected. Session Type: %{_temp_.cisco.session_type}, Duration: %{_temp_.duration_hms}, Bytes xmt: %{source.bytes}, Bytes rcv: %{destination.bytes}, Reason: %{event.reason}"
  - grok:
      if: '["302013", "302015"].contains(ctx._temp_.cisco.message_id)'
      field: "message"
      description: "302013, 302015"
      patterns:
        - Built %{NOTSPACE:network.direction} %{NOTSPACE:network.transport} connection %{NUMBER:_temp_.cisco.connection_id} for %{NOTCOLON:_temp_.cisco.source_interface}:%{IP:source.address}/%{NUMBER:source.port} \(%{IP:_temp_.natsrcip}/%{NUMBER:_temp_.cisco.mapped_source_port}\)(\(%{CISCO_USER:_temp_.cisco.source_username}\))? to %{NOTCOLON:_temp_.cisco.destination_interface}:%{NOTSPACE:destination.address}/%{NUMBER:destination.port} \(%{NOTSPACE:_temp_.natdstip}/%{NUMBER:_temp_.cisco.mapped_destination_port}\)(\(%{CISCO_USER:destination.user.name}\))?( \(%{CISCO_USER:_temp_.cisco.termination_user}\))?%{GREEDYDATA}
      pattern_definitions:
        NOTCOLON: "[^:]*"
        CISCO_USER: ((LOCAL\\)?(%{HOSTNAME}\\)?%{USERNAME}(@%{HOSTNAME})?)
  - dissect:
      if: "ctx._temp_.cisco.message_id == '303002'"
      field: "message"
      description: "303002"
      pattern: "%{network.protocol} connection from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port}, user %{client.user.name} %{} file %{file.path}"
  - grok:
      if: "ctx._temp_.cisco.message_id == '305012'"
      field: "message"
      description: "305012"
      patterns:
        - Teardown %{DATA} %{NOTSPACE:network.transport} translation from %{NOTCOLON:_temp_.cisco.source_interface}:%{IP:source.address}/%{NUMBER:source.port}(\s*\(%{CISCO_USER:_temp_.cisco.source_username}\))? to %{NOTCOLON:_temp_.cisco.destination_interface}:%{IP:destination.address}/%{NUMBER:destination.port} duration %{DURATION:_temp_.duration_hms}
      pattern_definitions:
        NOTCOLON: "[^:]*"
        CISCO_USER: ((LOCAL\\)?(%{HOSTNAME}\\)?%{USERNAME}(@%{HOSTNAME})?)
        DURATION: "%{INT}:%{MINUTE}:%{SECOND}"
  - grok:
      if: "ctx._temp_.cisco.message_id == '302020'"
      field: "message"
      description: "302020"
      patterns:
      - "Built %{NOTSPACE:network.direction} %{NOTSPACE:network.protocol} connection for faddr (?:%{NOTCOLON:_temp_.cisco.source_interface}:)?%{ECSDESTIPORHOST}/%{NUMBER}\\s*(?:\\(%{CISCO_USER:_temp_.cisco.destination_username}\\) )?gaddr (?:%{NOTCOLON}:)?%{MAPPEDSRC}/%{NUMBER} laddr (?:%{NOTCOLON:_temp_.cisco.source_interface}:)?%{ECSSOURCEIPORHOST}/%{NUMBER}\\s*(?:\\(%{CISCO_USER:_temp_.cisco.source_username}\\) )?(type %{NUMBER:_temp_.cisco.icmp_type} code %{NUMBER:_temp_.cisco.icmp_code})?"
      pattern_definitions:
        NOTCOLON: "[^:]*"
        ECSSOURCEIPORHOST: "(?:%{IP:source.address}|%{HOSTNAME:source.domain})"
        ECSDESTIPORHOST: "(?:%{IP:destination.address}|%{HOSTNAME:destination.domain})"
        MAPPEDSRC: "(?:%{DATA:_temp_.natsrcip}|%{HOSTNAME})"
        CISCO_USER: ((LOCAL\\)?(%{HOSTNAME}\\)?%{USERNAME}(@%{HOSTNAME})?)
  - dissect:
      if: "ctx._temp_.cisco.message_id == '302022'"
      field: "message"
      description: "302022"
      pattern: "Built %{} stub %{network.transport} connection for %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} %{} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} %{}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '302023'"
      field: "message"
      description: "302023"
      pattern: "Teardown stub %{network.transport} connection for %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} duration %{_temp_.duration_hms} forwarded bytes %{network.bytes} %{event.reason}"
  - grok:
      if: "ctx._temp_.cisco.message_id == '304001'"
      field: "message"
      description: "304001"
      patterns:
      - "(%{NOTSPACE:source.user.name}@)?%{IP:source.address}(\\(%{DATA}\\))? %{DATA} (%{NOTSPACE}@)?%{IP:destination.address}:%{GREEDYDATA:url.original}"
  - set:
      if: "ctx._temp_.cisco.message_id == '304001'"
      field: "event.outcome"
      description: "304001"
      value: "allowed"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '304002'"
      field: "message"
      description: "304002"
      pattern: "Access %{event.outcome} URL %{url.original} SRC %{source.address} %{}EST %{destination.address} on interface %{_temp_.cisco.source_interface}"
  - grok:
      if: "ctx._temp_.cisco.message_id == '305011'"
      field: "message"
      description: "305011"
      patterns:
        - Built %{NOTSPACE} %{NOTSPACE:network.transport} translation from %{NOTSPACE:_temp_.cisco.source_interface}:%{IP:source.address}/%{NUMBER:source.port}(\(%{NOTSPACE:source.user.name}\))? to %{NOTSPACE:_temp_.cisco.destination_interface}:%{IP:destination.address}/%{NUMBER:destination.port}
  - dissect:
      if: "ctx._temp_.cisco.message_id == '313001'"
      field: "message"
      description: "313001"
      pattern: "%{event.outcome} %{network.transport} type=%{_temp_.cisco.icmp_type}, code=%{_temp_.cisco.icmp_code} from %{source.address} on interface %{_temp_.cisco.source_interface}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '313004'"
      field: "message"
      description: "313004"
      pattern: "%{event.outcome} %{network.transport} type=%{_temp_.cisco.icmp_type}, from%{}addr %{source.address} on interface %{_temp_.cisco.source_interface} to %{destination.address}: no matching session"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '313005'"
      field: "message"
      description: "313005"
      pattern: "No matching connection for %{network.transport} error message: %{} on %{_temp_.cisco.source_interface} interface.%{}riginal IP payload: %{}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '313008'"
      field: "message"
      description: "313008"
      pattern: "%{event.outcome} %{network.transport} type=%{_temp_.cisco.icmp_type}, code=%{_temp_.cisco.icmp_code} from %{source.address} on interface %{_temp_.cisco.source_interface}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '313009'"
      field: "message"
      description: "313009"
      pattern: "%{event.outcome} invalid %{network.transport} code %{_temp_.cisco.icmp_code}, for %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '322001'"
      field: "message"
      description: "322001"
      pattern: "%{event.outcome} MAC address %{source.mac}, possible spoof attempt on interface %{_temp_.cisco.source_interface}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338001'"
      field: "message"
      description: "338001"
      pattern: "Dynamic filter %{event.outcome} black%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}source %{} resolved from %{_temp_.cisco.list_id} list: %{source.domain}, threat-level: %{_temp_.cisco.threat_level}, category: %{_temp_.cisco.threat_category}"
  - set:
      if: "ctx._temp_.cisco.message_id == '338001'"
      field: "server.domain"
      description: "338001"
      value: "{{source.domain}}"
      ignore_empty_value: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338002'"
      field: "message"
      description: "338002"
      pattern: "Dynamic %{}ilter %{event.outcome} black%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}destination %{} resolved from %{_temp_.cisco.list_id} list: %{destination.domain}"
  - set:
      if: "ctx._temp_.cisco.message_id == '338002'"
      field: "server.domain"
      description: "338002"
      value: "{{destination.domain}}"
      ignore_empty_value: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338003'"
      field: "message"
      description: "338003"
      pattern: "Dynamic %{}ilter %{event.outcome} black%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}source %{} resolved from %{_temp_.cisco.list_id} list: %{}, threat-level: %{_temp_.cisco.threat_level}, category: %{_temp_.cisco.threat_category}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338004'"
      field: "message"
      description: "338004"
      pattern: "Dynamic %{}ilter %{event.outcome} black%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}destination %{} resolved from %{_temp_.cisco.list_id} list: %{}, threat-level: %{_temp_.cisco.threat_level}, category: %{_temp_.cisco.threat_category}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338005'"
      field: "message"
      description: "338005"
      pattern: "Dynamic %{}ilter %{event.outcome} black%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}source %{} resolved from %{_temp_.cisco.list_id} list: %{source.domain}, threat-level: %{_temp_.cisco.threat_level}, category: %{_temp_.cisco.threat_category}"
  - set:
      if: "ctx._temp_.cisco.message_id == '338005'"
      field: "server.domain"
      description: "338005"
      value: "{{source.domain}}"
      ignore_empty_value: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338006'"
      field: "message"
      description: "338006"
      pattern: "Dynamic %{}ilter %{event.outcome} black%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}destination %{} resolved from %{_temp_.cisco.list_id} list: %{destination.domain}, threat-level: %{_temp_.cisco.threat_level}, category: %{_temp_.cisco.threat_category}"
  - set:
      if: "ctx._temp_.cisco.message_id == '338006'"
      field: "server.domain"
      description: "338006"
      value: "{{destination.domain}}"
      ignore_empty_value: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338007'"
      field: "message"
      description: "338007"
      pattern: "Dynamic %{}ilter %{event.outcome} black%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}source %{} resolved from %{_temp_.cisco.list_id} list: %{}, threat-level: %{_temp_.cisco.threat_level}, category: %{_temp_.cisco.threat_category}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338008'"
      field: "message"
      description: "338008"
      pattern: "Dynamic %{}ilter %{event.outcome} black%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}destination %{} resolved from %{_temp_.cisco.list_id} list: %{}, threat-level: %{_temp_.cisco.threat_level}, category: %{_temp_.cisco.threat_category}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338101'"
      field: "message"
      description: "338101"
      pattern: "Dynamic %{}ilter %{event.outcome} white%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}source %{} resolved from %{_temp_.cisco.list_id} list: %{source.domain}"
  - set:
      if: "ctx._temp_.cisco.message_id == '338101'"
      field: "server.domain"
      description: "338101"
      value: "{{source.domain}}"
      ignore_empty_value: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338102'"
      field: "message"
      description: "338102"
      pattern: "Dynamic %{}ilter %{event.outcome} white%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}destination %{} resolved from %{_temp_.cisco.list_id} list: %{destination.domain}"
  - set:
      if: "ctx._temp_.cisco.message_id == '338102'"
      field: "server.domain"
      description: "338102"
      value: "{{destination.domain}}"
      ignore_empty_value: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338103'"
      field: "message"
      description: "338103"
      pattern: "Dynamic %{}ilter %{event.outcome} white%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}source %{} resolved from %{_temp_.cisco.list_id} list: %{}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338104'"
      field: "message"
      description: "338104"
      pattern: "Dynamic %{}ilter %{event.outcome} white%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}destination %{} resolved from %{_temp_.cisco.list_id} list: %{}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338201'"
      field: "message"
      description: "338201"
      pattern: "Dynamic %{}ilter %{event.outcome} grey%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}source %{} resolved from %{_temp_.cisco.list_id} list: %{source.domain}, threat-level: %{_temp_.cisco.threat_level}, category: %{_temp_.cisco.threat_category}"
  - set:
      if: "ctx._temp_.cisco.message_id == '338201'"
      field: "server.domain"
      description: "338201"
      value: "{{source.domain}}"
      ignore_empty_value: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338202'"
      field: "message"
      description: "338202"
      pattern: "Dynamic %{}ilter %{event.outcome} grey%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}destination %{} resolved from %{_temp_.cisco.list_id} list: %{destination.domain}, threat-level: %{_temp_.cisco.threat_level}, category: %{_temp_.cisco.threat_category}"
  - set:
      if: "ctx._temp_.cisco.message_id == '338202'"
      field: "server.domain"
      description: "338202"
      value: "{{destination.domain}}"
      ignore_empty_value: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338203'"
      field: "message"
      description: "338203"
      pattern: "Dynamic %{}ilter %{event.outcome} grey%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}source %{} resolved from %{_temp_.cisco.list_id} list: %{source.domain}, threat-level: %{_temp_.cisco.threat_level}, category: %{_temp_.cisco.threat_category}"
  - set:
      if: "ctx._temp_.cisco.message_id == '338203'"
      field: "server.domain"
      description: "338203"
      value: "{{source.domain}}"
      ignore_empty_value: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338204'"
      field: "message"
      description: "338204"
      pattern: "Dynamic %{}ilter %{event.outcome} grey%{}d %{network.transport} traffic from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}destination %{} resolved from %{_temp_.cisco.list_id} list: %{destination.domain}, threat-level: %{_temp_.cisco.threat_level}, category: %{_temp_.cisco.threat_category}"
  - set:
      if: "ctx._temp_.cisco.message_id == '338204'"
      field: "server.domain"
      description: "338204"
      value: "{{destination.domain}}"
      ignore_empty_value: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '338301'"
      field: "message"
      description: "338301"
      pattern: "Intercepted DNS reply for domain %{source.domain} from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port}, matched %{_temp_.cisco.list_id}"
  - set:
      if: "ctx._temp_.cisco.message_id == '338301'"
      field: "client.address"
      description: "338301"
      value: "{{destination.address}}"
      ignore_empty_value: true
  - set:
      if: "ctx._temp_.cisco.message_id == '338301'"
      field: "client.port"
      description: "338301"
      value: "{{destination.port}}"
      ignore_empty_value: true
  - set:
      if: "ctx._temp_.cisco.message_id == '338301'"
      field: "server.address"
      description: "338301"
      value: "{{source.address}}"
      ignore_empty_value: true
  - set:
      if: "ctx._temp_.cisco.message_id == '338301'"
      field: "server.port"
      description: "338301"
      value: "{{source.port}}"
      ignore_empty_value: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '502103'"
      field: "message"
      description: "502103"
      pattern: "User priv level changed: Uname: %{user.name} From: %{_temp_.cisco.privilege.old} To: %{_temp_.cisco.privilege.new}"
  - append:
      if: "ctx._temp_.cisco.message_id == '502103'"
      field: "event.type"
      description: "502103"
      value:
      - "group"
      - "change"
  - append:
      if: "ctx._temp_.cisco.message_id == '502103'"
      field: "event.category"
      description: "502103"
      value: "iam"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '507003'"
      field: "message"
      description: "507003"
      pattern: "%{network.transport} flow from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} terminated by inspection engine, reason - %{message}"
  - dissect:
      if: '["605004", "605005"].contains(ctx._temp_.cisco.message_id)'
      field: "message"
      description: "605004, 605005"
      pattern: 'Login %{event.outcome} from %{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{network.protocol} for user "%{source.user.name}"'
  - dissect:
      if: "ctx._temp_.cisco.message_id == '609001'"
      field: "message"
      description: "609001"
      pattern: "Built local-host %{_temp_.cisco.source_interface}:%{source.address}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '609002'"
      field: "message"
      description: "609002"
      pattern: "Teardown local-host %{_temp_.cisco.source_interface}:%{source.address} duration %{_temp_.duration_hms}"
  - dissect:
      if: '["611102", "611101"].contains(ctx._temp_.cisco.message_id)'
      field: "message"
      description: "611102, 611101"
      pattern: 'User authentication %{event.outcome}: IP address: %{source.address}, Uname: %{user.name}'
  - dissect:
      if: "ctx._temp_.cisco.message_id == '710003'"
      field: "message"
      description: "710003"
      pattern: "%{network.transport} access %{event.outcome} by ACL from %{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '710005'"
      field: "message"
      description: "710005"
      pattern: "%{network.transport} request %{event.outcome} from %{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '713049'"
      field: "message"
      description: "713049"
      pattern: "Group = %{}, IP = %{source.address}, Security negotiation complete for LAN-to-LAN Group (%{}) %{}, Inbound SPI = %{}, Outbound SPI = %{}"
      ignore_failure: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '713049'"
      field: "message"
      description: "713049"
      pattern: "Group = %{}, Username = %{user.name}, IP = %{source.address}, Security negotiation complete for User (%{}) %{}, Inbound SPI = %{}, Outbound SPI = %{}"
      ignore_failure: true
  - grok:
      if: "ctx._temp_.cisco.message_id == '716002'"
      field: "message"
      description: "716002"
      patterns:
        - "Group <%{NOTSPACE:_temp_.cisco.webvpn.group_name}> User <%{NOTSPACE:source.user.name}> IP <%{IP:source.address}> WebVPN session terminated: %{GREEDYDATA:event.reason}."
        - "Group %{NOTSPACE:_temp_.cisco.webvpn.group_name} User %{NOTSPACE:source.user.name} IP %{IP:source.address} WebVPN session terminated: %{GREEDYDATA:event.reason}."
  - grok:
      if: "ctx._temp_.cisco.message_id == '722051'"
      field: "message"
      description: "722051"
      patterns:
        - "Group <%{NOTSPACE:_temp_.cisco.webvpn.group_name}> User <%{NOTSPACE:source.user.name}> IP <%{IP:source.address}> IPv4 Address <%{IP:_temp_.cisco.assigned_ip}> %{GREEDYDATA}"
        - "Group %{NOTSPACE:_temp_.cisco.webvpn.group_name} User %{NOTSPACE:source.user.name} IP %{IP:source.address} IPv4 Address %{IP:_temp_.cisco.assigned_ip} %{GREEDYDATA}"
  - grok:
      if: "ctx._temp_.cisco.message_id == '733100'"
      field: "message"
      description: "733100"
      patterns:
        - \[(%{SPACE})?%{DATA:_temp_.cisco.burst.object}\] drop %{NOTSPACE:_temp_.cisco.burst.id} exceeded. Current burst rate is %{INT:_temp_.cisco.burst.current_rate} per second, max configured rate is %{INT:_temp_.cisco.burst.configured_rate}; Current average rate is %{INT:_temp_.cisco.burst.avg_rate} per second, max configured rate is %{INT:_temp_.cisco.burst.configured_avg_rate}; Cumulative total count is %{INT:_temp_.cisco.burst.cumulative_count}
  - dissect:
      if: "ctx._temp_.cisco.message_id == '734001'"
      field: "message"
      description: "734001"
      pattern: "DAP: User %{user.email}, Addr %{source.address}, Connection %{_temp_.cisco.connection_type}: The following DAP records were selected for this connection: %{_temp_.cisco.dap_records->}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '805001'"
      field: "message"
      description: "805001"
      pattern: "Offloaded %{network.transport} Flow for connection %{_temp_.cisco.connection_id} from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '805002'"
      field: "message"
      description: "805002"
      pattern: "%{network.transport} Flow is no longer offloaded for connection %{_temp_.cisco.connection_id} from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})"
  - split:
      field: "_temp_.cisco.dap_records"
      separator: ",\\s+"
      ignore_missing: true
  - dissect:
      if: "ctx._temp_.cisco.message_id == '434001'"
      field: "message"
      pattern: "SFR card not up and fail-close mode used, %{event.action}ping %{network.protocol} packet from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '434002'"
      field: "message"
      pattern: "SFR requested to %{event.action} %{network.protocol} packet from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '434003'"
      field: "message"
      pattern: "SFR requested to %{event.action} %{network.protocol} connection from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '434004'"
      field: "message"
      pattern: "SFR requested ASA to %{event.action} further packet redirection and process %{network.protocol} flow from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} locally"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '110002'"
      field: "message"
      pattern: "%{event.reason} for %{network.protocol} from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} to %{destination.address}/%{destination.port}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '419002'"
      field: "message"
      pattern: "%{event.reason}from %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} %{+event.reason}"
  - dissect:
      if: '["602303", "602304"].contains(ctx._temp_.cisco.message_id)'
      field: "message"
      pattern: "%{network.type}: An %{network.direction} %{_temp_.cisco.tunnel_type} SA (SPI= %{}) between %{source.address} and %{destination.address} (user= %{user.name}) has been %{event.action}."
  - dissect:
      if: "ctx._temp_.cisco.message_id == '750002'"
      field: "message"
      pattern: "Local:%{source.address}:%{source.port} Remote:%{destination.address}:%{destination.port} Username:%{user.name} %{event.reason}"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '713120'"
      field: "message"
      pattern: "Group = %{}, IP = %{source.address}, %{event.reason} (msgid=%{event.id})"
  - dissect:
      if: "ctx._temp_.cisco.message_id == '713202'"
      field: "message"
      pattern: "IP = %{source.address}, %{event.reason}. %{} packet."
  - dissect:
      if: "ctx._temp_.cisco.message_id == '750003'"
      field: "message"
      pattern: "Local:%{source.address}:%{source.port} Remote:%{destination.address}:%{destination.port} Username:%{user.name} %{event.reason} ERROR:%{+event.reason}"
  - grok:
      if: '["713905", "713904", "713906", "713902", "713901"].contains(ctx._temp_.cisco.message_id)'
      field: "message"
      patterns:
      - "^(Group = %{IP}, )?(IP = %{IP:source.address}, )?%{GREEDYDATA:event.reason}$"
   # Handle ecs action outcome protocol
  - set:
      if: '["434001", "434002", "434003", "434004"].contains(ctx._temp_.cisco.message_id)'
      field: "event.outcome"
      value: "unknown"
  - set:
      if: '["419002"].contains(ctx._temp_.cisco.message_id)'
      field: "network.protocol"
      value: "tcp"
  - set:
      if: '["110002"].contains(ctx._temp_.cisco.message_id)'
      field: "event.outcome"
      value: "dropped"
  - set:
      if: '["713120"].contains(ctx._temp_.cisco.message_id)'
      field: "event.outcome"
      value: "success"
  - set:
      if: '["602303", "602304"].contains(ctx._temp_.cisco.message_id)'
      field: "event.outcome"
      value: "success"
  - set:
      if: '["710005"].contains(ctx._temp_.cisco.message_id)'
      field: "event.outcome"
      value: "dropped"
  - set:
      if: '["713901", "713902", "713903", "713904", "713905"].contains(ctx._temp_.cisco.message_id)'
      field: "event.outcome"
      value: "failure"
  - set:
      if: '["750002", "750003"].contains(ctx._temp_.cisco.message_id)'
      field: "event.action"
      value: "connection-started"
  - set:
      if: '["750003", "713905", "713904", "713906", "713902", "713901"].contains(ctx._temp_.cisco.message_id)'
      field: "event.action"
      value: "error"
  - append:
      if: '["750003", "713905", "713904", "713906", "713902", "713901"].contains(ctx._temp_.cisco.message_id)'
      field: "event.type"
      value: "error"



  #
  # Handle 302xxx messages (Flow expiration a.k.a "Teardown")
  #
  - set:
      if: '["305012", "302014", "302016", "302018", "302020", "302021", "302036", "302304", "302306", "609001", "609002"].contains(ctx._temp_.cisco.message_id)'
      field: "event.action"
      value: "flow-expiration"
      description: "305012, 302014, 302016, 302018, 302020, 302021, 302036, 302304, 302306, 609001, 609002"
  - grok:
      field: "message"
      if: '["302014", "302016", "302018", "302021", "302036", "302304", "302306"].contains(ctx._temp_.cisco.message_id)'
      description: "302014, 302016, 302018, 302021, 302036, 302304, 302306"
      patterns:
        - ^Teardown %{NOTSPACE:network.transport} (?:state-bypass )?connection %{NOTSPACE:_temp_.cisco.connection_id} (?:for|from) %{NOTCOLON:_temp_.cisco.source_interface}:%{DATA:source.address}/%{NUMBER:source.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.source_username}\)? )?to %{NOTCOLON:_temp_.cisco.destination_interface}:%{DATA:destination.address}/%{NUMBER:destination.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.destination_username}\)? )?duration (?:%{DURATION:_temp_.duration_hms} bytes %{NUMBER:network.bytes}) %{NOTCOLON:event.reason} from %{NOTCOLON:_temp_.cisco.termination_initiator} \(%{CISCO_USER:_temp_.cisco.termination_user}\)
        - ^Teardown %{NOTSPACE:network.transport} (?:state-bypass )?connection %{NOTSPACE:_temp_.cisco.connection_id} (?:for|from) %{NOTCOLON:_temp_.cisco.source_interface}:%{DATA:source.address}/%{NUMBER:source.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.source_username}\)? )?to %{NOTCOLON:_temp_.cisco.destination_interface}:%{DATA:destination.address}/%{NUMBER:destination.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.destination_username}\)? )?duration (?:%{DURATION:_temp_.duration_hms} bytes %{NUMBER:network.bytes}) %{NOTCOLON:event.reason} from %{NOTCOLON:_temp_.cisco.termination_initiator}
        - ^Teardown %{NOTSPACE:network.transport} (?:state-bypass )?connection %{NOTSPACE:_temp_.cisco.connection_id} (?:for|from) %{NOTCOLON:_temp_.cisco.source_interface}:%{DATA:source.address}/%{NUMBER:source.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.source_username}\)? )?to %{NOTCOLON:_temp_.cisco.destination_interface}:%{DATA:destination.address}/%{NUMBER:destination.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.destination_username}\)? )?duration (?:%{DURATION:_temp_.duration_hms} bytes %{NUMBER:network.bytes}) %{NOTCOLON:event.reason} \(%{CISCO_USER:_temp_.cisco.termination_user}\)
        - ^Teardown %{NOTSPACE:network.transport} (?:state-bypass )?connection %{NOTSPACE:_temp_.cisco.connection_id} (?:for|from) %{NOTCOLON:_temp_.cisco.source_interface}:%{DATA:source.address}/%{NUMBER:source.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.source_username}\)? )?to %{NOTCOLON:_temp_.cisco.destination_interface}:%{DATA:destination.address}/%{NUMBER:destination.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.destination_username}\)? )?duration (?:%{DURATION:_temp_.duration_hms} bytes %{NUMBER:network.bytes}) \(%{CISCO_USER:_temp_.cisco.termination_user}\)
        - ^Teardown %{NOTSPACE:network.transport} (?:state-bypass )?connection %{NOTSPACE:_temp_.cisco.connection_id} (?:for|from) %{NOTCOLON:_temp_.cisco.source_interface}:%{DATA:source.address}/%{NUMBER:source.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.source_username}\)? )?to %{NOTCOLON:_temp_.cisco.destination_interface}:%{DATA:destination.address}/%{NUMBER:destination.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.destination_username}\)? )?duration (?:%{DURATION:_temp_.duration_hms} bytes %{NUMBER:network.bytes}) %{NOTCOLON:event.reason}
        - ^Teardown %{NOTSPACE:network.transport} (?:state-bypass )?connection %{NOTSPACE:_temp_.cisco.connection_id} (?:for|from) %{NOTCOLON:_temp_.cisco.source_interface}:%{DATA:source.address}/%{NUMBER:source.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.source_username}\)? )?to %{NOTCOLON:_temp_.cisco.destination_interface}:%{DATA:destination.address}/%{NUMBER:destination.port:int}\s*(?:\(?%{CISCO_USER:_temp_.cisco.destination_username}\)? )?duration (?:%{DURATION:_temp_.duration_hms} bytes %{NUMBER:network.bytes})
        - ^Teardown %{NOTSPACE:network.transport} connection for faddr (?:%{NOTCOLON:_temp_.cisco.source_interface}:)?%{ECSDESTIPORHOST}/%{NUMBER}\s*(?:\(?%{CISCO_USER:_temp_.cisco.destination_username}\)? )?gaddr (?:%{NOTCOLON}:)?%{MAPPEDSRC}/%{NUMBER} laddr (?:%{NOTCOLON:_temp_.cisco.source_interface}:)?%{ECSSOURCEIPORHOST}/%{NUMBER}\s*(?:\(%{CISCO_USER:_temp_.cisco.source_username}\))?(\s*type %{NUMBER:_temp_.cisco.icmp_type} code %{NUMBER:_temp_.cisco.icmp_code})?
      pattern_definitions:
        NOTCOLON: "[^:]*"
        ECSSOURCEIPORHOST: "(?:%{IP:source.address}|%{HOSTNAME:source.domain})"
        ECSDESTIPORHOST: "(?:%{IP:destination.address}|%{HOSTNAME:destination.domain})"
        MAPPEDSRC: "(?:%{IPORHOST:_temp_.natsrcip}|%{HOSTNAME})"
        DURATION: "%{INT}:%{MINUTE}:%{SECOND}"
        CISCO_USER: ((LOCAL\\)?(%{HOSTNAME}\\)?%{USERNAME}(@%{HOSTNAME})?)
  #
  # Decode FTD's Security Event Syslog Messages
  #
  # 43000x messages are security event syslog messages specific to FTD.
  # Format is a comma-separated sequence of key: value pairs.
  #
  # The result of this decoding is saved as _temp_.orig_security.{Key}: {Value}
  - kv:
      if: '["430001", "430002", "430003", "430004", "430005", ""].contains(ctx._temp_.cisco.message_id)'
      field: "message"
      description: "430001, 430002, 430003, 430004, 430005"
      field_split: ",(?=[A-za-z1-9\\s]+:)"
      value_split: ":"
      target_field: "_temp_.orig_security"
      trim_key: " "
      trim_value: " "
      ignore_failure: true
  #
  # Remove message.
  #
  # The field has been used as temporary buffer while decoding. The full message
  # is kept log.original. Processors below can still add a message field, as some
  # security events contain an explanatory Message field.
  - remove:
      field:
        - message
      ignore_missing: true
  #
  # Populate ECS fields from Security Events
  #
  # This script uses the key-value pairs from Security Events to populate
  # the appropriate ECS fields.
  #
  # A single key can be mapped to multiple ECS fields, and more than one key can
  # map to the same ECS field, which results in an array being created.
  #
  # This script performs an additional job:
  #
  # Before FTD version 6.3, the message_id was not included in Security Events.
  # As this field encodes the kind of event (intrusion, connection, malware...)
  # the script below will guess the right message_id from the keys present in
  # the event.
  #
  # The reason for overloading this script with different behaviors is
  # that this pipeline is already reaching the limit on script compilations.
  #
  #*******************************************************************************
  # Code generated by go generate. DO NOT EDIT.
  #*******************************************************************************
  - script:
      if: ctx._temp_?.orig_security != null
      params:
        ACPolicy:
          target: ac_policy
          id: ["430001", "430002", "430003"]
          ecs: [_temp_.cisco.rule_name]
        AccessControlRuleAction:
          target: access_control_rule_action
          id: ["430002", "430003"]
          ecs: [event.outcome]
        AccessControlRuleName:
          target: access_control_rule_name
          id: ["430002", "430003"]
          ecs: [_temp_.cisco.rule_name]
        AccessControlRuleReason:
          target: access_control_rule_reason
          id: ["430002", "430003"]
        ApplicationProtocol:
          target: application_protocol
          ecs: [network.protocol]
        ArchiveDepth:
          target: archive_depth
          id: ["430004", "430005"]
        ArchiveFileName:
          target: archive_file_name
          id: ["430004", "430005"]
          ecs: [file.name]
        ArchiveFileStatus:
          target: archive_file_status
          id: ["430004", "430005"]
        ArchiveSHA256:
          target: archive_sha256
          id: ["430004", "430005"]
          ecs: [file.hash.sha256]
        Classification:
          target: classification
          id: ["430001"]
        Client:
          target: client
          ecs: [network.application]
        ClientVersion:
          target: client_version
          id: ["430002", "430003"]
        ConnectionDuration:
          target: connection_duration
          id: ["430003"]
          ecs: [event.duration]
        DNS_Sinkhole:
          target: dns_sinkhole
          id: ["430002", "430003"]
        DNS_TTL:
          target: dns_ttl
          id: ["430002", "430003"]
        DNSQuery:
          target: dns_query
          id: ["430002", "430003"]
          ecs: [dns.question.name]
        DNSRecordType:
          target: dns_record_type
          id: ["430002", "430003"]
          ecs: [dns.question.type]
        DNSResponseType:
          target: dns_response_type
          id: ["430002", "430003"]
          ecs: [dns.response_code]
        DNSSICategory:
          target: dnssi_category
          id: ["430002", "430003"]
        DstIP:
          target: dst_ip
          ecs: [destination.address]
        DstPort:
          target: dst_port
          ecs: [destination.port]
        EgressInterface:
          target: egress_interface
          id: ["430001", "430002", "430003"]
          ecs: [_temp_.cisco.destination_interface]
        EgressZone:
          target: egress_zone
          id: ["430001", "430002", "430003"]
          ecs: [observer.egress.zone]
        Endpoint Profile:
          target: endpoint_profile
          id: ["430002", "430003"]
        FileAction:
          target: file_action
          id: ["430004", "430005"]
        FileCount:
          target: file_count
          id: ["430002", "430003"]
        FileDirection:
          target: file_direction
          id: ["430004", "430005"]
        FileName:
          target: file_name
          id: ["430004", "430005"]
          ecs: [file.name]
        FilePolicy:
          target: file_policy
          id: ["430004", "430005"]
          ecs: [_temp_.cisco.rule_name]
        FileSHA256:
          target: file_sha256
          id: ["430004", "430005"]
          ecs: [file.hash.sha256]
        FileSandboxStatus:
          target: file_sandbox_status
          id: ["430004", "430005"]
        FileSize:
          target: file_size
          id: ["430004", "430005"]
          ecs: [file.size]
        FileStorageStatus:
          target: file_storage_status
          id: ["430004", "430005"]
        FileType:
          target: file_type
          id: ["430004", "430005"]
        FirstPacketSecond:
          target: first_packet_second
          id: ["430004", "430005"]
          ecs: [event.start]
        GID:
          target: gid
          id: ["430001"]
          ecs: [service.id]
        HTTPReferer:
          target: http_referer
          id: ["430002", "430003"]
          ecs: [http.request.referrer]
        HTTPResponse:
          target: http_response
          id: ["430001", "430002", "430003"]
          ecs: [http.response.status_code]
        ICMPCode:
          target: icmp_code
          id: ["430001", "430002", "430003"]
        ICMPType:
          target: icmp_type
          id: ["430001", "430002", "430003"]
        IPReputationSICategory:
          target: ip_reputation_si_category
          id: ["430002", "430003"]
        IPSCount:
          target: ips_count
          id: ["430002", "430003"]
        IngressInterface:
          target: ingress_interface
          id: ["430001", "430002", "430003"]
          ecs: [_temp_.cisco.source_interface]
        IngressZone:
          target: ingress_zone
          id: ["430001", "430002", "430003"]
          ecs: [observer.ingress.zone]
        InitiatorBytes:
          target: initiator_bytes
          id: ["430003"]
          ecs: [source.bytes]
        InitiatorPackets:
          target: initiator_packets
          id: ["430003"]
          ecs: [source.packets]
        InlineResult:
          target: inline_result
          id: ["430001"]
          ecs: [event.outcome]
        IntrusionPolicy:
          target: intrusion_policy
          id: ["430001"]
          ecs: [_temp_.cisco.rule_name]
        MPLS_Label:
          target: mpls_label
          id: ["430001"]
        Message:
          target: message
          id: ["430001"]
          ecs: [message]
        NAPPolicy:
          target: nap_policy
          id: ["430001", "430002", "430003"]
        NetBIOSDomain:
          target: net_bios_domain
          id: ["430002", "430003"]
          ecs: [host.hostname]
        NumIOC:
          target: num_ioc
          id: ["430001"]
        Prefilter Policy:
          target: prefilter_policy
          id: ["430002", "430003"]
        Priority:
          target: priority
          id: ["430001"]
        Protocol:
          target: protocol
          ecs: [network.transport]
        ReferencedHost:
          target: referenced_host
          id: ["430002", "430003"]
          ecs: [url.domain]
        ResponderBytes:
          target: responder_bytes
          id: ["430003"]
          ecs: [destination.bytes]
        ResponderPackets:
          target: responder_packets
          id: ["430003"]
          ecs: [destination.packets]
        Revision:
          target: revision
          id: ["430001"]
        SHA_Disposition:
          target: sha_disposition
          id: ["430004", "430005"]
        SID:
          target: sid
          id: ["430001"]
        SSLActualAction:
          target: ssl_actual_action
          ecs: [event.outcome]
        SSLCertificate:
          target: ssl_certificate
          id: ["430002", "430003", "430004", "430005"]
        SSLExpectedAction:
          target: ssl_expected_action
          id: ["430002", "430003"]
        SSLFlowStatus:
          target: ssl_flow_status
          id: ["430002", "430003", "430004", "430005"]
        SSLPolicy:
          target: ssl_policy
          id: ["430002", "430003"]
        SSLRuleName:
          target: ssl_rule_name
          id: ["430002", "430003"]
        SSLServerCertStatus:
          target: ssl_server_cert_status
          id: ["430002", "430003"]
        SSLServerName:
          target: ssl_server_name
          id: ["430002", "430003"]
          ecs: [server.domain]
        SSLSessionID:
          target: ssl_session_id
          id: ["430002", "430003"]
        SSLTicketID:
          target: ssl_ticket_id
          id: ["430002", "430003"]
        SSLURLCategory:
          target: sslurl_category
          id: ["430002", "430003"]
        SSLVersion:
          target: ssl_version
          id: ["430002", "430003"]
        SSSLCipherSuite:
          target: sssl_cipher_suite
          id: ["430002", "430003"]
        SecIntMatchingIP:
          target: sec_int_matching_ip
          id: ["430002", "430003"]
        Security Group:
          target: security_group
          id: ["430002", "430003"]
        SperoDisposition:
          target: spero_disposition
          id: ["430004", "430005"]
        SrcIP:
          target: src_ip
          ecs: [source.address]
        SrcPort:
          target: src_port
          ecs: [source.port]
        TCPFlags:
          target: tcp_flags
          id: ["430002", "430003"]
        ThreatName:
          target: threat_name
          id: ["430005"]
          ecs: [_temp_.cisco.threat_category]
        ThreatScore:
          target: threat_score
          id: ["430005"]
          ecs: [_temp_.cisco.threat_level]
        Tunnel or Prefilter Rule:
          target: tunnel_or_prefilter_rule
          id: ["430002", "430003"]
        URI:
          target: uri
          id: ["430004", "430005"]
          ecs: [url.original]
        URL:
          target: url
          id: ["430002", "430003"]
          ecs: [url.original]
        URLCategory:
          target: url_category
          id: ["430002", "430003"]
        URLReputation:
          target: url_reputation
          id: ["430002", "430003"]
        URLSICategory:
          target: urlsi_category
          id: ["430002", "430003"]
        User:
          target: user
          ecs: [user.id, user.name]
        UserAgent:
          target: user_agent
          id: ["430002", "430003"]
          ecs: [user_agent.original]
        VLAN_ID:
          target: vlan_id
          id: ["430001", "430002", "430003"]
        WebApplication:
          target: web_application
          ecs: [network.application]
        originalClientSrcIP:
          target: original_client_src_ip
          id: ["430002", "430003"]
          ecs: [client.address]
      lang: painless
      source: |
        boolean isEmpty(def value) {
          return (value instanceof AbstractList? value.size() : value.length()) == 0;
        }
        def appendOrCreate(Map dest, String[] path, def value) {
         for (int i=0; i<path.length-1; i++) {
          dest = dest.computeIfAbsent(path[i], _ -> new HashMap());
         }
         String key = path[path.length - 1];
         def existing = dest.get(key);
         return existing == null?
          dest.put(key, value)
          : existing instanceof AbstractList?
            existing.add(value)
            : dest.put(key, new ArrayList([existing, value]));
        }
        def msg = ctx._temp_.orig_security;
        def counters = new HashMap();
        def dest = new HashMap();
        ctx._temp_.cisco['security'] = dest;
        for (entry in msg.entrySet()) {
         def param = params.get(entry.getKey());
         if (param == null) {
           continue;
         }
         param.getOrDefault('id', []).forEach( id -> counters[id] = 1 + counters.getOrDefault(id, 0) );
         if (!isEmpty(entry.getValue())) {
          param.getOrDefault('ecs', []).forEach( field -> appendOrCreate(ctx, field.splitOnToken('.'), entry.getValue()) );
          dest[param.target] = entry.getValue();
         }
        }
        if (ctx._temp_.cisco.message_id != "") return;
        def best;
        for (entry in counters.entrySet()) {
         if (best == null || best.getValue() < entry.getValue()) best = entry;
        }
        if (best != null) ctx._temp_.cisco.message_id = best.getKey();
  #*******************************************************************************
  # End of generated code.
  #*******************************************************************************
  #
  # Normalize ECS field values
  #
  - script:
      lang: painless
      params:
        "ctx._temp_.cisco.message_id":
          target: event.action
          map:
            "430001": intrusion-detected
            "430002": connection-started
            "430003": connection-finished
            "430004": file-detected
            "430005": malware-detected
        "dns.question.type":
          map:
            "a host address": A
            "ip6 address": AAAA
            "text strings": TXT
            "a domain name pointer": PTR
            "an authoritative name server": NS
            "the canonical name for an alias": CNAME
            "marks the start of a zone of authority": SOA
            "mail exchange": MX
            "server selection": SRV
        "dns.response_code":
          map:
            "non-existent domain": NXDOMAIN
            "server failure": SERVFAIL
            "query refused": REFUSED
            "no error": NOERROR
      source: |
        def getField(Map src, String[] path) {
         for (int i=0; i<path.length-1; i++) {
          src = src.getOrDefault(path[i], null);
          if (src == null || !(src instanceof Map)) {
            return null;
          }
         }
         return src[path[path.length-1]];
        }
        def setField(Map dest, String[] path, def value) {
         for (int i=0; i<path.length-1; i++) {
           dest = dest.computeIfAbsent(path[i], _ -> new HashMap());
         }
         dest[path[path.length-1]] = value;
        }
        for (entry in params.entrySet()) {
          def srcField = entry.getKey();
          def param = entry.getValue();
          String oldVal = getField(ctx, srcField.splitOnToken('.'));
          if (oldVal == null) continue;
          def newVal = param.map?.getOrDefault(oldVal.toLowerCase(), null);
          if (newVal != null) {
            def dstField = param.getOrDefault('target', srcField);
            setField(ctx, dstField.splitOnToken('.'), newVal);
          }
        }
  - set:
      if: "ctx.dns?.question?.type != null && ctx.dns?.response_code == null"
      field: dns.response_code
      value: NOERROR
  - set:
      if: 'ctx._temp_.cisco.message_id == "430001"'
      field: event.action
      value: intrusion-detected
  - set:
      if: 'ctx._temp_.cisco.message_id == "430002"'
      field: event.action
      value: connection-started
  - set:
      if: 'ctx._temp_.cisco.message_id == "430003"'
      field: event.action
      value: connection-finished
  - set:
      if: 'ctx._temp_.cisco.message_id == "430004"'
      field: event.action
      value: file-detected
  - set:
      if: 'ctx._temp_.cisco.message_id == "430005"'
      field: event.action
      value: malware-detected
  #
  # Handle event.duration
  #
  # It can be set from ConnectionDuration FTD field above. This field holds
  # seconds as a string. Copy it to _temp_.duration_hms so that the following
  # processor converts it to the right value and populates start and end.
  - set:
      field: "_temp_.duration_hms"
      value: "{{event.duration}}"
      ignore_empty_value: true
  #
  # Process the flow duration "hh:mm:ss" present in some messages
  # This will fill event.start, event.end and event.duration
  #
  - script:
      lang: painless
      if: "ctx?._temp_?.duration_hms != null"
      source: >
        long parse_hms(String s) {
            long cur = 0, total = 0;
            for (char c: s.toCharArray()) {
                if (c >= (char)'0' && c <= (char)'9') {
                    cur = (cur*10) + (long)c - (char)'0';
                } else if (c == (char)':') {
                    total = (total + cur) * 60;
                    cur = 0;
                } else if (c != (char)'h' && c == (char)'m' && c == (char)'s') {
                    return 0;
                }
            }
            return total + cur;
        }
        if (ctx?.event == null) {
            ctx['event'] = new HashMap();
        }
        String end = ctx['@timestamp'];
        ctx.event['end'] = end;
        long nanos = parse_hms(ctx._temp_.duration_hms) * 1000000000L;
        ctx.event['duration'] = nanos;
        ctx.event['start'] = ZonedDateTime.ofInstant(
            Instant.parse(end).minusNanos(nanos),
            ZoneOffset.UTC);
  #
  # Parse Source/Dest Username/Domain
  #
  - set:
      field: source.user.name
      value: "{{{ _temp_.cisco.source_username }}}"
      if: 'ctx?.source?.user?.name == null && ctx?._temp_?.cisco?.source_username != null'
  - set:
      field: destination.user.name
      value: "{{{ _temp_.cisco.destination_username }}}"
      if: 'ctx?.destination?.user?.name == null && ctx?._temp_?.cisco?.destination_username != null'
  - grok:
      field: "source.user.name"
      if: 'ctx?.source?.user?.name != null'
      ignore_failure: true
      patterns:
        - (%{CISCO_DOMAIN})?%{CISCO_USER:source.user.name}
      pattern_definitions:
        CISCO_USER: "%{USERNAME}(@%{HOSTNAME:source.user.domain})?"
        CISCO_DOMAIN: (LOCAL\\)?(%{HOSTNAME:source.user.domain}\\)?
  - grok:
      field: "destination.user.name"
      if: 'ctx?.destination?.user?.name != null'
      ignore_failure: true
      patterns:
        - (%{CISCO_DOMAIN})?%{CISCO_USER:destination.user.name}
      pattern_definitions:
        CISCO_USER: "%{USERNAME}(@%{HOSTNAME:destination.user.domain})?"
        CISCO_DOMAIN: (LOCAL\\)?(%{HOSTNAME:destination.user.domain}\\)?
  #
  # Normalize protocol names
  #
  - lowercase:
      field: "network.transport"
      ignore_failure: true
  - lowercase:
      field: "network.protocol"
      ignore_failure: true
  - lowercase:
      field: "network.application"
      ignore_failure: true
  - lowercase:
      field: "file.type"
      ignore_failure: true
  - lowercase:
      field: "network.direction"
      ignore_failure: true
  - lowercase:
      field: "network.type"
      ignore_failure: true
  #
  # Populate network.iana_number from network.transport. Also does reverse
  # mapping in case network.transport contains the iana_number.
  #
  - script:
      if: "ctx?.network?.transport != null"
      lang: painless
      params:
        icmp: 1
        igmp: 2
        ipv4: 4
        tcp: 6
        egp: 8
        igp: 9
        pup: 12
        udp: 17
        rdp: 27
        irtp: 28
        dccp: 33
        idpr: 35
        ipv6: 41
        ipv6-route: 43
        ipv6-frag: 44
        rsvp: 46
        gre: 47
        esp: 50
        ipv6-icmp: 58
        ipv6-nonxt: 59
        ipv6-opts: 60
      source: >
        def net = ctx.network;
        def iana = params[net.transport];
        if (iana != null) {
          net['iana_number'] = iana;
          return;
        }
        def reverse = new HashMap();
        def[] arr = new def[] { null };
        for (entry in params.entrySet()) {
          arr[0] = entry.getValue();
          reverse.put(String.format("%d", arr), entry.getKey());
        }
        def trans = reverse[net.transport];
        if (trans != null) {
          net['iana_number'] = net.transport;
          net['transport'] = trans;
        }
  #
  # Normalize event.outcome
  #
  - lowercase:
      field: "event.outcome"
      ignore_missing: true
  - set:
      field: "event.outcome"
      if: 'ctx.event?.outcome == "est-allowed"'
      value: "allowed"
  - set:
      field: "event.outcome"
      if: 'ctx.event?.outcome == "permitted"'
      value: "allowed"
  - set:
      field: "event.outcome"
      if: 'ctx.event?.outcome == "allow"'
      value: "allowed"
  - set:
      field: "event.outcome"
      if: 'ctx.event?.outcome == "deny"'
      value: denied
  - set:
      field: "network.transport"
      if: 'ctx.network?.transport == "icmpv6"'
      value: "ipv6-icmp"
  #
  # Convert numeric fields to integer or long, as output of dissect and kv processors is always a string
  #
  - convert:
      field: "source.port"
      type: integer
      ignore_failure: true
      ignore_missing: true
  - convert:
      field: "destination.port"
      type: integer
      ignore_failure: true
      ignore_missing: true
  - convert:
      field: "source.bytes"
      type: long
      ignore_failure: true
      ignore_missing: true
  - convert:
      field: "destination.bytes"
      type: long
      ignore_failure: true
      ignore_missing: true
  - convert:
      field: "network.bytes"
      type: long
      ignore_failure: true
      ignore_missing: true
  - convert:
      field: "source.packets"
      type: integer
      ignore_failure: true
      ignore_missing: true
  - convert:
      field: "destination.packets"
      type: integer
      ignore_failure: true
      ignore_missing: true
  - convert:
      field: "_temp_.cisco.mapped_source_port"
      type: integer
      ignore_failure: true
      ignore_missing: true
  - convert:
      field: "_temp_.cisco.mapped_destination_port"
      type: integer
      ignore_failure: true
      ignore_missing: true
  - convert:
      field: "_temp_.cisco.icmp_code"
      type: integer
      ignore_failure: true
      ignore_missing: true
  - convert:
      field: "_temp_.cisco.icmp_type"
      type: integer
      ignore_failure: true
      ignore_missing: true
  - convert:
      field: "network.iana_number"
      type: integer
      ignore_failure: true
      ignore_missing: true
  #
  # Assign ECS .ip fields from .address is a valid IP address is found,
  # otherwise set .domain field.
  #
  - grok:
      field: source.address
      patterns:
        - "^(?:%{IP:source.ip}|%{GREEDYDATA:source.domain})$"
      ignore_failure: true
  - grok:
      field: destination.address
      patterns:
        - "^(?:%{IP:destination.ip}|%{GREEDYDATA:destination.domain})$"
      ignore_failure: true
  - grok:
      field: client.address
      patterns:
        - "^(?:%{IP:client.ip}|%{GREEDYDATA:client.domain})$"
      ignore_failure: true
  - grok:
      field: server.address
      patterns:
        - "^(?:%{IP:server.ip}|%{GREEDYDATA:server.domain})$"
      ignore_failure: true
  #
  # Geolocation for source and destination addresses
  #
  - geoip:
      field: "source.ip"
      target_field: "source.geo"
      ignore_missing: true
  - geoip:
      field: "destination.ip"
      target_field: "destination.geo"
      ignore_missing: true
  #
  # IP Autonomous System (AS) Lookup
  #
  - geoip:
      database_file: GeoLite2-ASN.mmdb
      field: source.ip
      target_field: source.as
      properties:
        - asn
        - organization_name
      ignore_missing: true
  - geoip:
      database_file: GeoLite2-ASN.mmdb
      field: destination.ip
      target_field: destination.as
      properties:
        - asn
        - organization_name
      ignore_missing: true
  - rename:
      field: source.as.asn
      target_field: source.as.number
      ignore_missing: true
  - rename:
      field: source.as.organization_name
      target_field: source.as.organization.name
      ignore_missing: true
  - rename:
      field: destination.as.asn
      target_field: destination.as.number
      ignore_missing: true
  - rename:
      field: destination.as.organization_name
      target_field: destination.as.organization.name
      ignore_missing: true
  #
  # Set mapped_{src|dst}_ip fields only if they consist of a valid IP address.
  #
  - grok:
      field: _temp_.natsrcip
      patterns:
        - "^(?:%{IP:_temp_.cisco.mapped_source_ip}|%{GREEDYDATA:_temp_.cisco.mapped_source_host})$"
      ignore_failure: true
  - grok:
      field: _temp_.natdstip
      patterns:
        - "^(?:%{IP:_temp_.cisco.mapped_destination_ip}|%{GREEDYDATA:_temp_.cisco.mapped_destination_host})$"
      ignore_failure: true
  #
  # NAT fields
  #
  # The firewall always populates mapped ip and port even if there was no NAT.
  # This populates both nat.ip and nat.port only when some translation is done.
  # Fills nat.ip and nat.port even when only the ip or port changed.
  - set:
      field: source.nat.ip
      value: "{{_temp_.cisco.mapped_source_ip}}"
      if: "ctx?._temp_?.cisco?.mapped_source_ip != ctx?.source?.ip"
      ignore_empty_value: true
  - set:
      field: source.nat.port
      value: "{{_temp_.cisco.mapped_source_port}}"
      if: "ctx?._temp_?.cisco?.mapped_source_port != ctx?.source?.port"
      ignore_empty_value: true
  - set:
      field: destination.nat.ip
      value: "{{_temp_.cisco.mapped_destination_ip}}"
      if: "ctx?._temp_?.cisco.mapped_destination_ip != ctx?.destination?.ip"
      ignore_empty_value: true
  - set:
      field: destination.nat.port
      value: "{{_temp_.cisco.mapped_destination_port}}"
      if: "ctx?._temp_?.cisco?.mapped_destination_port != ctx?.destination?.port"
      ignore_empty_value: true
  #
  # Zone-based Network Directionality
  #
  # If external and internal zones are specified and our ingress/egress zones are
  # populated, then we can classify traffic directionality based off of our defined
  # zones rather than the logs.
  - set:
      field: network.direction
      value: inbound
      if: >
        ctx?._temp_?.external_zones != null &&
        ctx?._temp_?.internal_zones != null &&
        ctx?.observer?.ingress?.zone != null &&
        ctx?.observer?.egress?.zone != null &&
        ctx._temp_.external_zones.contains(ctx.observer.ingress.zone) &&
        ctx._temp_.internal_zones.contains(ctx.observer.egress.zone)
  - set:
      field: network.direction
      value: outbound
      if: >
        ctx?._temp_?.external_zones != null &&
        ctx?._temp_?.internal_zones != null &&
        ctx?.observer?.ingress?.zone != null &&
        ctx?.observer?.egress?.zone != null &&
        ctx._temp_.external_zones.contains(ctx.observer.egress.zone) &&
        ctx._temp_.internal_zones.contains(ctx.observer.ingress.zone)
  - set:
      field: network.direction
      value: internal
      if: >
        ctx?._temp_?.external_zones != null &&
        ctx?._temp_?.internal_zones != null &&
        ctx?.observer?.ingress?.zone != null &&
        ctx?.observer?.egress?.zone != null &&
        ctx._temp_.internal_zones.contains(ctx.observer.egress.zone) &&
        ctx._temp_.internal_zones.contains(ctx.observer.ingress.zone)
  - set:
      field: network.direction
      value: external
      if: >
        ctx?._temp_?.external_zones != null &&
        ctx?._temp_?.internal_zones != null &&
        ctx?.observer?.ingress?.zone != null &&
        ctx?.observer?.egress?.zone != null &&
        ctx._temp_.external_zones.contains(ctx.observer.egress.zone) &&
        ctx._temp_.external_zones.contains(ctx.observer.ingress.zone)
  - set:
      field: network.direction
      value: unknown
      if: >
        ctx?._temp_?.external_zones != null &&
        ctx?._temp_?.internal_zones != null &&
        ctx?.observer?.egress?.zone != null &&
        ctx?.observer?.ingress?.zone != null &&
        (
          (
            !ctx._temp_.external_zones.contains(ctx.observer.egress.zone) &&
            !ctx._temp_.internal_zones.contains(ctx.observer.egress.zone)
          ) ||
          (
            !ctx._temp_.external_zones.contains(ctx.observer.ingress.zone) &&
            !ctx._temp_.internal_zones.contains(ctx.observer.ingress.zone)
          )
        )

  - set:
      field: _temp_.url_domain
      value: "{{url.domain}}"
      ignore_failure: true
      if: ctx?.url?.domain != null

  - uri_parts:
      field: url.original
      ignore_failure: true
      if: ctx?.url?.original != null
  - append:
      field: url.domain
      value: "{{_temp_.url_domain}}"
      ignore_failure: true
      allow_duplicates: false
      if: ctx?._temp_?.url_domain != null

  #
  # Populate ECS event.code
  #
  - convert:
      field: _temp_.cisco.message_id
      target_field: event.code
      type: integer
      ignore_failure: true
  - remove:
      field:
        - _temp_.cisco.message_id
        - event.code
      if: 'ctx._temp_.cisco.message_id == ""'
      ignore_failure: true
  #
  # Copy _temp_.cisco to its final destination, cisco.asa or cisco.ftd.
  #
  - rename:
      field: _temp_.cisco
      target_field: "cisco.{< .internal_prefix >}"
      ignore_failure: true
  #
  # Remove temporary fields
  #
  - remove:
      field: _temp_
      ignore_missing: true
  #
  # Rename some 7.x fields
  #
  - rename:
      field: log.original
      target_field: event.original
      ignore_missing: true
  - rename:
      field: cisco.{< .internal_prefix >}.list_id
      target_field: cisco.{< .internal_prefix >}.rule_name
      ignore_missing: true
  # ECS categorization
  - script:
      lang: painless
      params:
        connection-finished:
          kind: event
          category:
            - network
          type:
            - end
        connection-started:
          kind: event
          category:
            - network
          type:
            - start
        file-detected:
          kind: alert
          category:
            - malware
          type:
            - info
        firewall-rule:
          kind: event
          category:
            - network
          type: []
        flow-expiration:
          kind: event
          category:
            - network
          type:
            - connection
            - end
        intrusion-detected:
          kind: alert
          category:
            - intrusion_detection
          type:
            - info
        malware-detected:
          kind: alert
          category:
            - malware
          type:
            - info
        bypass:
          kind: event
          category:
            - network
          type:
            - info
            - change
        error:
          kind: event
          outcome: failure
          category:
            - network
          type:
            - error
        deleted:
          kind: event
          category:
            - network
          type:
            - info
            - deletion
            - user
        creation:
          kind: event
          category:
            - network
          type:
            - info
            - creation
            - user
      source: >-
        if (ctx?.event?.action == null || !params.containsKey(ctx.event.action)) {
          return;
        }

        ctx.event.kind = params.get(ctx.event.action).get('kind');
        ctx.event.category = params.get(ctx.event.action).get('category').clone();
        ctx.event.type = params.get(ctx.event.action).get('type').clone();

        if (ctx?.event?.outcome == null || (!ctx.event.category.contains('network') && !ctx.event.category.contains('intrusion_detection'))) {
          if (ctx?.event?.action == 'firewall-rule') {
            ctx.event.type.add('info');
          } else if (ctx?.event?.action.startsWith('connection-')) {
            ctx.event.type.add('connection');
          }
          return;
        }

        if (ctx.event.outcome == 'allowed') {
          ctx.event.outcome = 'success';
          ctx.event.type.add('connection');
          ctx.event.type.add('allowed');
        } else if (ctx.event.outcome == 'denied' || ctx.event.outcome == 'block') {
          ctx.event.outcome = 'success';
          ctx.event.type.add('connection');
          ctx.event.type.add('denied');
        } else if (ctx.event.outcome == 'dropped') {
          ctx.event.outcome = 'failure';
          ctx.event.type.add('connection');
          ctx.event.type.add('denied');
        } else if (ctx?.event?.action == 'firewall-rule') {
          ctx.event.type.add('info');
        } else if (ctx?.event?.action.startsWith('connection-')) {
          ctx.event.type.add('connection');
        }
        if (ctx.event.outcome == 'monitored') {
          ctx.event.category.add('intrusion_detection');
          ctx.event.outcome = 'success';
        }

  - set:
      description: copy destination.user.name to user.name if it is not set
      field: user.name
      value: "{{destination.user.name}}"
      ignore_empty_value: true
      if: ctx?.user?.name == null

  # Configures observer fields with a copy from cisco and host fields. Later on these might replace host.hostname.
  - set:
      field: observer.hostname
      value: "{{ host.hostname }}"
      ignore_empty_value: true
  - set:
      field: observer.vendor
      value: "Cisco"
      ignore_empty_value: true
  - set:
      field: observer.type
      value: "firewall"
      ignore_empty_value: true
  - set:
      field: observer.product
      value: "{< .internal_prefix >}"
      ignore_empty_value: true
  - set:
      field: observer.egress.interface.name
      value: "{{ cisco.{< .internal_prefix >}.destination_interface }}"
      ignore_empty_value: true
  - set:
      field: observer.ingress.interface.name
      value: "{{ cisco.{< .internal_prefix >}.source_interface }}"
      ignore_empty_value: true
  - append:
      field: related.ip
      value: "{{source.ip}}"
      if: "ctx?.source?.ip != null"
      allow_duplicates: false
  - append:
      field: related.ip
      value: "{{source.nat.ip}}"
      if: "ctx?.source?.nat?.ip != null"
      allow_duplicates: false
  - append:
      field: related.ip
      value: "{{destination.ip}}"
      if: "ctx?.destination?.ip != null"
      allow_duplicates: false
  - append:
      field: related.ip
      value: "{{destination.nat.ip}}"
      if: "ctx?.destination?.nat?.ip != null"
      allow_duplicates: false
  - append:
      field: related.user
      value: "{{{user.name}}}"
      if: ctx?.user?.name != null && ctx?.user?.name != ''
      allow_duplicates: false
  - append:
      field: related.user
      value: "{{{source.user.name}}}"
      if: ctx?.source?.user?.name != null && ctx?.source?.user?.name != ''
      allow_duplicates: false
  - append:
      field: related.user
      value: "{{{destination.user.name}}}"
      if: ctx?.destination?.user?.name != null && ctx?.destination?.user?.name != ''
      allow_duplicates: false
  - append:
      field: related.hash
      value: "{{file.hash.sha256}}"
      if: "ctx?.file?.hash?.sha256 != null"
      allow_duplicates: false
  - append:
      field: related.hosts
      value: "{{host.hostname}}"
      if: ctx.host?.hostname != null && ctx.host?.hostname != ''
      allow_duplicates: false
  - append:
      field: related.hosts
      value: "{{observer.hostname}}"
      if: ctx.observer?.hostname != null && ctx.observer?.hostname != ''
      allow_duplicates: false
  - append:
      field: related.hosts
      value: "{{destination.domain}}"
      if: ctx.destination?.domain != null && ctx.destination?.domain != ''
      allow_duplicates: false
  - append:
      field: related.hosts
      value: "{{source.domain}}"
      if: ctx.source?.domain != null && ctx.source?.domain != ''
      allow_duplicates: false
  - append:
      field: related.hosts
      value: "{{source.user.domain}}"
      if: ctx.source?.user?.domain != null && ctx.source?.user?.domain != ''
      allow_duplicates: false
  - append:
      field: related.hosts
      value: "{{destination.user.domain}}"
      if: ctx.destination?.user?.domain != null && ctx.destination?.user?.domain != ''
      allow_duplicates: false
  - script:
      lang: painless
      description: This script processor iterates over the whole document to remove fields with null values.
      source: |
        void handleMap(Map map) {
          for (def x : map.values()) {
            if (x instanceof Map) {
                handleMap(x);
            } else if (x instanceof List) {
                handleList(x);
            }
          }
          map.values().removeIf(v -> v == null);
        }
        void handleList(List list) {
          for (def x : list) {
              if (x instanceof Map) {
                  handleMap(x);
              } else if (x instanceof List) {
                  handleList(x);
              }
          }
        }
        handleMap(ctx);
  - community_id:
      ignore_missing: true
      ignore_failure: true
on_failure:
  # Copy any fields under _temp_.cisco to its final destination. Those can help
  # with diagnosing the failure.
  - rename:
      field: _temp_.cisco
      target_field: "cisco.{< .internal_prefix >}"
      ignore_failure: true
  # Remove _temp_ to avoid adding a lot of unnecessary fields to the index.
  - remove:
      field: _temp_
      ignore_missing: true
  - append:
      field: "error.message"
      value: "{{ _ingest.on_failure_message }}"
