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Add new terms rule type to Detections API create/update rule docs #3914

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merged 7 commits into from
Sep 20, 2023
Merged

Add new terms rule type to Detections API create/update rule docs #3914

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2e75cf0
Add new terms rule type to Detections API create/update rule docs
marshallmain Sep 11, 2023
a01fda6
Apply suggestions from code review
marshallmain Sep 13, 2023
443db43
Update copy for history_window_start recommended format
marshallmain Sep 14, 2023
d169fa7
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marshallmain Sep 18, 2023
c662b40
Add example request and response for new terms rule
marshallmain Sep 18, 2023
e8ddd20
Fix copy paste errors
marshallmain Sep 19, 2023
79e9a5d
Merge branch 'main' into new-terms-api-docs
marshallmain Sep 20, 2023
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26 changes: 22 additions & 4 deletions docs/detections/api/rules/rules-api-create.asciidoc
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Original file line number Diff line number Diff line change
Expand Up @@ -100,6 +100,7 @@ A JSON object that defines the rule's values:
* <<req-fields-eql>>
* <<req-fields-ml>>
* <<req-fields-threat-match>>
* <<req-fields-new-terms>>
* <<opt-fields-all>>
* <<opt-fields-query-eql>>
* <<opt-fields-threat-match>>
Expand Down Expand Up @@ -145,11 +146,12 @@ occurred
{es} index.
* `threshold`: rule based on the number of times a `query` matches the
specified field.
* `new_terms`: rule that alerts on values that have not been seen before

|==============================================

[[req-fields-query-threshold]]
===== Required field for query, indicator match and threshold rules
===== Required field for query, indicator match, threshold, and new terms rules

[width="100%",options="header"]
|==============================================
Expand Down Expand Up @@ -250,6 +252,22 @@ uses both `and` and `or` logic.

|==============================================

[[req-fields-new-terms]]
===== Required fields for new terms rules

[width="100%",options="header"]
|==============================================
|Name |Type |Description

|new_terms_fields |String[] |Fields to monitor for new values. Must contain 1–3 field names.

|history_window_start |String |Start date to use when checking if a term has been seen before.
Supports relative dates – for example, now-30d will search the last 30 days of data when checking if a term
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is new. We do not recommend using absolute dates, which can cause issues with rule performance
due to querying increasing amounts of data over time.

|==============================================

[[opt-fields-all]]
===== Optional fields for all rule types

Expand Down Expand Up @@ -336,7 +354,7 @@ Required when `actions` are used to send notifications.
|==============================================

[[opt-fields-query-eql]]
===== Optional fields for query, indicator match, and event correlation rules
===== Optional fields for query, indicator match, event correlation, and new terms rules

[width="100%",options="header"]
|==============================================
Expand Down Expand Up @@ -372,7 +390,7 @@ documents from the {es} index containing the threat values.
|==============================================

[[opt-fields-query-threshold]]
===== Optional fields for query, indicator match, and threshold rules
===== Optional fields for query, indicator match, threshold, and new terms rules

[width="100%",options="header"]
|==============================================
Expand All @@ -383,7 +401,7 @@ documents from the {es} index containing the threat values.
|==============================================

[[opt-fields-eql-query-threshold]]
===== Optional fields for event correlation, query, and threshold rules
===== Optional fields for event correlation, query, threshold, and new terms rules

[width="100%",options="header"]
|==============================================
Expand Down
24 changes: 20 additions & 4 deletions docs/detections/api/rules/rules-api-update.asciidoc
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Expand Up @@ -67,10 +67,11 @@ occurred
{es} index.
* `threshold`: rule based on the number of times a `query` matches the
specified field.
* `new_terms`: rule that alerts on values that have not been seen before

|==============================================

===== Field required for query, threat-match and threshold rules `PUT` calls
===== Field required for query, threat-match, threshold, and new terms rules `PUT` calls

[width="100%",options="header"]
|==============================================
Expand Down Expand Up @@ -166,6 +167,21 @@ uses both `and` and `or` logic.

|==============================================

===== Fields required for new terms rules `PUT` calls

[width="100%",options="header"]
|==============================================
|Name |Type |Description

|new_terms_fields |String[] |Fields to monitor for new values. Must contain 1–3 field names.

|history_window_start |String |Start date to use when checking if a term has been seen before.
Supports relative dates – for example, now-30d will search the last 30 days of data when checking if a term
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is new. We do not recommend using absolute dates, which can cause issues with rule performance
due to querying increasing amounts of data over time.

|==============================================

===== Optional fields for all rule types

[width="100%",options="header"]
Expand Down Expand Up @@ -244,7 +260,7 @@ number.

|==============================================

===== Optional fields for query, threat-match and EQL rules
===== Optional fields for query, threat-match, EQL, and new terms rules

[width="100%",options="header"]
|==============================================
Expand Down Expand Up @@ -278,7 +294,7 @@ documents from the {es} index containing the threat values.
|Much like an ingest processor, users can use this field to define where their threat indicator can be found on their indicator documents. Defaults to `threatintel.indicator`.
|==============================================

===== Optional fields for query, threat-match and threshold rules
===== Optional fields for query, threat-match, threshold, and new terms rules

[width="100%",options="header"]
|==============================================
Expand All @@ -288,7 +304,7 @@ documents from the {es} index containing the threat values.
`kuery` or `lucene`. Defaults to `kuery`.
|==============================================

===== Optional fields for EQL, query and threshold rules
===== Optional fields for EQL, query, threshold, and new terms rules

[width="100%",options="header"]
|==============================================
Expand Down