[Filebeat] Threatintel compatibility updates (elastic#27323)

* First pass on updating filebeat threatintel logic for ECS 1.11

This only covers modules starting with an a; the rest will follow
shortly. In general, these changes address the following goals:

* preference for indicator.url.domain, and deprecation of
  indicator.domain
* moving from event.reference to indicator.reference

* Move remaining modules from indicator.domain -> indicator.url.domain

Along with conditional checks to ensure we're not overwriting the
relevant uri_parts data from earlier in the pipeline.

* Update indicator.reference in relevant modules

* Fix missing prefix in target field

* linting and apply new testfiles

* Run `make update` in filebeat

* fixing duplicate fields

* mage fmt update

* linting

Co-authored-by: Marius Iversen <[email protected]>

filebeat/docs/fields.asciidoc

@@ -156557,23 +156557,23 @@ type: keyword
 
 --
 
-*`threatintel.indicator.ip`*::
+*`threatintel.indicator.reference`*::
 +
 --
-Identifies a threat indicator as an IP address (irrespective of direction).
+Reference URL linking to additional information about this indicator.
 
 
-type: ip
+type: keyword
 
 --
 
-*`threatintel.indicator.domain`*::
+*`threatintel.indicator.ip`*::
 +
 --
-Identifies a threat indicator as a domain (irrespective of direction).
+Identifies a threat indicator as an IP address (irrespective of direction).
 
 
-type: keyword
+type: ip
 
 --
 

filebeat/docs/modules/threatintel.asciidoc

@@ -68,7 +68,7 @@ Abuse.ch URL Threat Intel is mapped to the following ECS fields.
 [options="header"]
 |==============================================================
 | URL Threat Intel Fields    | ECS Fields
-| url                        | threat.indicator.url.full
+| url                        | threatintel.indicator.url.full
 | date_added                 | @timestamp
 | host                       | threatintel.indicator.ip/domain
 |==============================================================
@@ -473,7 +473,7 @@ Anomali ThreatStream fields are mapped to the following ECS fields:
 | date_first  | threatintel.indicator.first_seen
 | date_last   | threatintel.indicator.last_seen
 | detail      | tags
-| domain      | threatintel.indicator.domain
+| domain      | threatintel.indicator.url.domain
 | email       | threatintel.indicator.email.address
 | itype<<a,[1]>> | threatintel.indicator.type
 | lat         | threatintel.indicator.geo.location.lat

x-pack/filebeat/module/threatintel/_meta/docs.asciidoc

@@ -63,7 +63,7 @@ Abuse.ch URL Threat Intel is mapped to the following ECS fields.
 [options="header"]
 |==============================================================
 | URL Threat Intel Fields    | ECS Fields
-| url                        | threat.indicator.url.full
+| url                        | threatintel.indicator.url.full
 | date_added                 | @timestamp
 | host                       | threatintel.indicator.ip/domain
 |==============================================================
@@ -468,7 +468,7 @@ Anomali ThreatStream fields are mapped to the following ECS fields:
 | date_first  | threatintel.indicator.first_seen
 | date_last   | threatintel.indicator.last_seen
 | detail      | tags
-| domain      | threatintel.indicator.domain
+| domain      | threatintel.indicator.url.domain
 | email       | threatintel.indicator.email.address
 | itype<<a,[1]>> | threatintel.indicator.type
 | lat         | threatintel.indicator.geo.location.lat