Suspicious Get Local Groups Information - PowerShell

 1title: Suspicious Get Local Groups Information - PowerShell
 2id: fa6a5a45-3ee2-4529-aa14-ee5edc9e29cb
 3related:
 4    - id: cef24b90-dddc-4ae1-a09a-8764872f69fc
 5      type: similar
 6status: test
 7description: |
 8    Detects the use of PowerShell modules and cmdlets to gather local group information.
 9    Adversaries may use local system permission groups to determine which groups exist and which users belong to a particular group such as the local administrators group.    
10references:
11    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1069.001/T1069.001.md
12author: frack113
13date: 2021-12-12
14modified: 2025-08-22
15tags:
16    - attack.discovery
17    - attack.t1069.001
18logsource:
19    product: windows
20    category: ps_script
21    definition: 'Requirements: Script Block Logging must be enabled'
22detection:
23    selection_localgroup:
24        ScriptBlockText|contains:
25            - 'get-localgroup '
26            - 'get-localgroupmember '
27    selection_wmi_module:
28        ScriptBlockText|contains:
29            - 'get-wmiobject '
30            - 'gwmi '
31            - 'get-ciminstance '
32            - 'gcim '
33    selection_wmi_class:
34        ScriptBlockText|contains: 'win32_group' # Covers both win32_group and win32_groupuser
35    condition: selection_localgroup or all of selection_wmi_*
36falsepositives:
37    - Inventory scripts or admin tasks
38level: low