---
description: Pipeline for parsing Abuse.ch URL Threat Intel
processors:
  ####################
  # Event ECS fields #
  ####################
  - set:
      field: event.ingested
      value: "{{_ingest.timestamp}}"
  - set:
      field: event.kind
      value: enrichment
  - set:
      field: event.category
      value: threat
  - set:
      field: event.type
      value: indicator

  ######################
  # General ECS fields #
  ######################
  - rename:
      field: message
      target_field: event.original
      ignore_missing: true
  - json:
      field: event.original
      target_field: abusech.url
  - fingerprint:
      fields:
        - abusech.url.id
      target_field: "_id"

  #####################
  # Threat ECS Fields #
  #####################
  - set:
      field: threat.feed.name
      value: "[Filebeat] AbuseCH URL"
  - set:
      field: threat.feed.dashboard_id
      value: "ad9c7430-72de-11eb-a3e3-b3cc7c78a70f"
  - set:
      field: threat.indicator.type
      value: url
  - date:
      field: abusech.url.date_added
      target_field: threat.indicator.first_seen
      formats:
        - "yyyy-MM-dd HH:mm:ss z"
        - "yyyy-MM-dd HH:mm:ss Z"
      if: "ctx.abusech?.url?.date_added != null"
  - uri_parts:
      field: abusech.url.url
      target_field: threat.indicator.url
      keep_original: true
      remove_if_successful: true
  - set:
      field: threat.indicator.url.full
      value: "{{{threat.indicator.url.original}}}"
      ignore_empty_value: true
  - rename:
      field: abusech.url.urlhaus_reference
      target_field: threat.indicator.reference
      ignore_missing: true

  # Host can be both IP addresses and domain names
  - grok:
      field: abusech.url.host
      patterns:
        - "(?:%{IP:threat.indicator.ip}|%{GREEDYDATA:threat.indicator.url.domain})"
      ignore_failure: true
  - rename:
      field: abusech.url.reporter
      target_field: threat.indicator.provider
      ignore_missing: true

  ######################
  # Cleanup processors #
  ######################
  - set:
      field: threat.indicator.type
      value: unknown
      if: ctx?.threat?.indicator?.type == null
  - convert:
      field: abusech.url.larted
      type: boolean
      ignore_missing: true
  - script:
      lang: painless
      if: ctx?.abusech != null
      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);
  - remove:
      field: event.original
      if: "ctx?.tags == null || !(ctx.tags.contains('preserve_original_event'))"
      ignore_failure: true
      ignore_missing: true
  - remove:
      field:
        - abusech.url.date_added
        - abusech.url.url
        - abusech.url.host
        - message
      ignore_missing: true
on_failure:
  - set:
      field: error.message
      value: "{{ _ingest.on_failure_message }}"