Possible Local Groups Enumeration - Linux (via process_creation)

title: Possible Local Groups Enumeration - Linux (via process_creation)
id: 9934ec25-65a1-5f23-8e96-7f2fbbc7f6b1
status: stable
description: This rule detects enumeration of local system groups. Threat actors may attempt to find local system groups and permission settings
references:
    - https://attack.mitre.org/techniques/T1069/001/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1069.001/T1069.001.md
author: Huntrule Team
date: 2026-03-10
tags:
    - attack.discovery
    - attack.t1069.001
logsource:
    category: process_creation
    product: linux
detection:
    selection_1:
        Image|endswith: '/groups'
    selection_2:
        Image|endswith:
            - '/cat'
            - '/ed'
            - '/head'
            - '/less'
            - '/more'
            - '/nano'
            - '/tail'
            - '/vi'
            - '/vim'
        CommandLine|contains: '/etc/group'
    condition: 1 of selection_*
falsepositives:
    - Unknown
level: low