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Add event.category registry #1040

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Oct 27, 2020
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2 changes: 2 additions & 0 deletions CHANGELOG.next.md
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,8 @@ Thanks, you're awesome :-) -->

#### Added

* Added `event.category` allowed value "registry". #1040

#### Improvements

#### Deprecated
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2 changes: 1 addition & 1 deletion docs/field-details.asciidoc
Original file line number Diff line number Diff line change
Expand Up @@ -1597,7 +1597,7 @@ Note: this field should contain an array of values.

*Important*: The field value must be one of the following:

authentication, configuration, database, driver, file, host, iam, intrusion_detection, malware, network, package, process, web
authentication, configuration, database, driver, file, host, iam, intrusion_detection, malware, network, package, process, registry, web

To learn more about when to use which value, visit the page
<<ecs-allowed-values-event-category,allowed values for event.category>>
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13 changes: 13 additions & 0 deletions docs/field-values.asciidoc
Original file line number Diff line number Diff line change
Expand Up @@ -144,6 +144,7 @@ that will require subsequent breaking changes.
* <<ecs-event-category-network,network>>
* <<ecs-event-category-package,package>>
* <<ecs-event-category-process,process>>
* <<ecs-event-category-registry,registry>>
* <<ecs-event-category-web,web>>

[float]
Expand Down Expand Up @@ -298,6 +299,18 @@ Use this category of events to visualize and analyze process-specific informatio
access, change, end, info, start


[float]
[[ecs-event-category-registry]]
==== registry

Having to do with settings and assets stored in the Windows registry. Use this category to visualize and analyze activity such as registry access and modifications.
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*Expected event types for category registry:*

access, change, creation, deletion


[float]
[[ecs-event-category-web]]
==== web
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9 changes: 9 additions & 0 deletions experimental/generated/ecs/ecs_flat.yml
Original file line number Diff line number Diff line change
Expand Up @@ -1774,6 +1774,15 @@ event.category:
- info
- start
name: process
- description: Having to do with settings and assets stored in the Windows registry.
Use this category to visualize and analyze activity such as registry access
and modifications.
expected_event_types:
- access
- change
- creation
- deletion
name: registry
- description: 'Relating to web server access. Use this category to create a dashboard
of web server/proxy activity from apache, IIS, nginx web servers, etc. Note:
events from network observers such as Zeek http log may also be included in
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9 changes: 9 additions & 0 deletions experimental/generated/ecs/ecs_nested.yml
Original file line number Diff line number Diff line change
Expand Up @@ -2168,6 +2168,15 @@ event:
- info
- start
name: process
- description: Having to do with settings and assets stored in the Windows registry.
Use this category to visualize and analyze activity such as registry access
and modifications.
expected_event_types:
- access
- change
- creation
- deletion
name: registry
- description: 'Relating to web server access. Use this category to create a
dashboard of web server/proxy activity from apache, IIS, nginx web servers,
etc. Note: events from network observers such as Zeek http log may also
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9 changes: 9 additions & 0 deletions generated/ecs/ecs_flat.yml
Original file line number Diff line number Diff line change
Expand Up @@ -1814,6 +1814,15 @@ event.category:
- info
- start
name: process
- description: Having to do with settings and assets stored in the Windows registry.
Use this category to visualize and analyze activity such as registry access
and modifications.
expected_event_types:
- access
- change
- creation
- deletion
name: registry
- description: 'Relating to web server access. Use this category to create a dashboard
of web server/proxy activity from apache, IIS, nginx web servers, etc. Note:
events from network observers such as Zeek http log may also be included in
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9 changes: 9 additions & 0 deletions generated/ecs/ecs_nested.yml
Original file line number Diff line number Diff line change
Expand Up @@ -2209,6 +2209,15 @@ event:
- info
- start
name: process
- description: Having to do with settings and assets stored in the Windows registry.
Use this category to visualize and analyze activity such as registry access
and modifications.
expected_event_types:
- access
- change
- creation
- deletion
name: registry
- description: 'Relating to web server access. Use this category to create a
dashboard of web server/proxy activity from apache, IIS, nginx web servers,
etc. Note: events from network observers such as Zeek http log may also
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9 changes: 9 additions & 0 deletions schemas/event.yml
Original file line number Diff line number Diff line change
Expand Up @@ -277,6 +277,15 @@
- end
- info
- start
- name: registry
description: >
Having to do with settings and assets stored in the Windows registry.
Use this category to visualize and analyze activity such as registry access and modifications.
expected_event_types:
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thanks for the add.
I think this seems like a good start. And I would err on the side of omitting info like you did. It's always easier to add later than it is to remove.

These values may not be specific enough, because they don't differentiate between key vs value changes. But I think 99% of the time, we're looking at changed values, not keys. So this is okay in my opinion.

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@MikePaquette Did you have a specific use in mind for "info"? This proposal is not yet adding it as an expected value.

One way Auditbeat uses "info" is to dump a list of all running processes, to establish a baseline. Then it reports process start/end as things happen.

I could see a similar use for dumping a set of registry keys (hopefully not the whole hive); then monitor for changes with creation/change/deletion. Was that the idea?

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@rw-access On specificity wrt key vs value activity, I'm not sure we should change the allowed values in event.type.

I would think event.action can be used to capture whether it's a change to a value or a data blob?

- access
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- change
- creation
- deletion
- name: web
description: >
Relating to web server access. Use this category to create a dashboard of
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