Detectionlowtest

AD Groups Or Users Enumeration Using PowerShell - PoshModule

Adversaries may attempt to find domain-level groups and permission settings. The knowledge of domain-level permission groups can help adversaries determine which groups exist and which users belong to a particular group. Adversaries may use this information to determine which users have elevated permissions, such as domain administrators.

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

Launch

François HubautCreated Wed Dec 15Updated Fri Jan 20815bfc17-7fc6-4908-a55e-2f37b98cedb4windows

Log Source

WindowsPowerShell Module

ProductWindows← raw: windows

CategoryPowerShell Module← raw: ps_module

Definition

0ad03ef1-f21b-4a79-8ce8-e6900c54b65b

Detection Logic

detection:
    selection_ad_principal:
        - Payload|contains: 'get-ADPrincipalGroupMembership'
        - ContextInfo|contains: 'get-ADPrincipalGroupMembership'
    selection_get_aduser:
        - Payload|contains|all:
              - get-aduser
              - '-f '
              - '-pr '
              - DoesNotRequirePreAuth
        - ContextInfo|contains|all:
              - get-aduser
              - '-f '
              - '-pr '
              - DoesNotRequirePreAuth
    condition: 1 of selection_*