SigmaHQ/rules/linux/lnx_local_groups.yml

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YAML

title: Local Groups Discovery
id: 676381a6-15ca-4d73-a9c8-6a22e970b90d
status: experimental
description: Detects enumeration of local system groups
author: Ömer Günal, Alejandro Ortuno, oscd.community
date: 2020/10/11
references:
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1069.001/T1069.001.md
logsource:
category: process_creation
product: linux
detection:
selection_1:
Image|endswith:
- '/groups'
selection_2:
Image|endswith:
- '/cat'
CommandLine|contains:
- '/etc/group'
condition: 1 of them
falsepositives:
- Legitimate administration activities
level: low
tags:
- attack.discovery
- attack.t1069.001