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Merge branch 'The-Haag-of-The-Storm' of https://github.com/splunk/security_content into The-Haag-of-The-Storm

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Detection Testing Service
2021-09-21 18:14:11 +00:00
parent e2a6903b26 e90125ff92
commit d4091f9cc7
1 changed files with 13 additions and 8 deletions
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detections/endpoint/powershell_disable_security_monitoring.yml
+13 -8
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@@ -12,10 +12,15 @@ description: This search is to identifies a modification in registry to disable
search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time)
as lastTime from datamodel=Endpoint.Processes where `process_powershell` Processes.process="*set-mppreference*"
AND Processes.process IN ("*disablerealtimemonitoring*","*disableioavprotection*","*disableintrusionpreventionsystem*","*disablescriptscanning*","*disableblockatfirstseen*")
by Processes.dest Processes.user Processes.parent_process Processes.original_file_name Processes.process_name
Processes.process Processes.process_id Processes.parent_process_id | `drop_dm_object_name(Processes)`
| `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `powershell_disable_security_monitoring_filter`'
how_to_implement: To successfully implement this search you need to be ingesting information on process that include the name of the process responsible for the changes from your endpoints into the `Endpoint` datamodel in the `Processes` node. In addition, confirm the latest CIM App 4.20 or higher is installed and the latest TA for the endpoint product.
by Processes.dest Processes.user Processes.parent_process Processes.original_file_name
Processes.process_name Processes.process Processes.process_id Processes.parent_process_id
| `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`
| `powershell_disable_security_monitoring_filter`'
how_to_implement: To successfully implement this search you need to be ingesting information
on process that include the name of the process responsible for the changes from
your endpoints into the `Endpoint` datamodel in the `Processes` node. In addition,
confirm the latest CIM App 4.20 or higher is installed and the latest TA for the
endpoint product.
known_false_positives: Limited false positives. However, tune based on scripts that
may perform this action.
references:
@@ -39,11 +44,11 @@ tags:
- _time
- Processes.dest
- Processes.user
- Processes.parent_process_name #parent process name
- Processes.parent_process #parent cmdline
- Processes.parent_process_name
- Processes.parent_process
- Processes.original_file_name
- Processes.process_name #process name
- Processes.process #process cmdline
- Processes.process_name
- Processes.process
- Processes.process_id
- Processes.parent_process_path
- Processes.process_path