Suspicious GPO Discovery With Get-GPO

Detect use of Get-GPO to get one GPO or all the GPOs in a domain.

Sigma rule (View on GitHub)

 1title: Suspicious GPO Discovery With Get-GPO
 2id: eb2fd349-ec67-4caa-9143-d79c7fb34441
 3status: test
 4description: Detect use of Get-GPO to get one GPO or all the GPOs in a domain.
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1615/T1615.md
 7    - https://learn.microsoft.com/en-us/powershell/module/grouppolicy/get-gpo?view=windowsserver2022-ps
 8author: frack113
 9date: 2022/06/04
10tags:
11    - attack.discovery
12    - attack.t1615
13logsource:
14    product: windows
15    category: ps_script
16    definition: 'Requirements: Script Block Logging must be enabled'
17detection:
18    selection:
19        ScriptBlockText|contains: Get-GPO
20    condition: selection
21falsepositives:
22    - Legitimate PowerShell scripts
23level: low

References

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