Detectioninformationaltest

Local Groups Discovery - MacOs

Detects enumeration of local system groups

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Ömer Günal, Alejandro Ortuno, oscd.communityCreated Sun Oct 11Updated Sun Nov 2789bb1f97-c7b9-40e8-b52b-7d6afbd67276macos

Log Source

macOSProcess Creation

ProductmacOS← raw: macos

CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic

detection:
    selection_1:
        Image|endswith: '/dscacheutil'
        CommandLine|contains|all:
            - '-q'
            - 'group'
    selection_2:
        Image|endswith: '/cat'
        CommandLine|contains: '/etc/group'
    selection_3:
        Image|endswith: '/dscl'
        CommandLine|contains|all:
            - '-list'
            - '/groups'
    condition: 1 of selection*