Sigma rule: Suspicious Reconnaissance Activity Using Get-LocalGroupMember Cmdlet

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-fea8b21cc344, updated 2022-10-10T00:00:00.000Z.

Rule

Title
Suspicious Reconnaissance Activity Using Get-LocalGroupMember Cmdlet
Status
test
Level
medium
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2022-10-10
File
rules/windows/process_creation/proc_creation_win_powershell_get_localgroup_member_recon.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects suspicious reconnaissance command line activity on Windows systems using the PowerShell Get-LocalGroupMember Cmdlet

Log source

product
windows
category
process_creation

Detection

# Covers group and localgroup flags
selection_cmdlet:
    CommandLine|contains: 'Get-LocalGroupMember '
selection_group:
    CommandLine|contains:
        # Add more groups for other languages
        - 'domain admins'
        - ' administrator' # Typo without an 'S' so we catch both
        - ' administrateur' # Typo without an 'S' so we catch both
        - 'enterprise admins'
        - 'Exchange Trusted Subsystem'
        - 'Remote Desktop Users'
        - 'Utilisateurs du Bureau à distance' # French for "Remote Desktop Users"
        - 'Usuarios de escritorio remoto' # Spanish for "Remote Desktop Users"
condition: all of selection_*

False positives (as the rule lists them)

  • Administrative activity

Tags

  • attack.discovery
  • attack.t1087.001

MITRE ATT&CK ids this rule names

Related rules

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_powershell_get_localgroup_member_recon.yml

Sources and licences

  • SigmaHQ

    "Suspicious Reconnaissance Activity Using Get-LocalGroupMember Cmdlet" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_powershell_get_localgroup_member_recon.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Suspicious Reconnaissance Activity Using Get-LocalGroupMember Cmdlet",
entity page, dataset version ref-fea8b21cc344, updated 2022-10-10T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/c8a180d6-47a3-4345-a609-53f9c3d834fc (accessed 2026-11-03).
Underlying source: SigmaHQ rule c8a180d6-47a3-4345-a609-53f9c3d834fc, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.