Detectionlowtest
Local Groups Discovery - Linux
Detects enumeration of local system groups. Adversaries may attempt to find local system groups and permission settings
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Ömer Günal, Alejandro Ortuno, oscd.communityCreated Sun Oct 11Updated Wed Jun 04676381a6-15ca-4d73-a9c8-6a22e970b90dlinux
Log Source
LinuxProcess Creation
ProductLinux← raw: linux
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 Logic2 selectors
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_*False Positives
Legitimate administration activities
References
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
676381a6-15ca-4d73-a9c8-6a22e970b90d
Status
test
Level
low
Type
Detection
Created
Sun Oct 11
Modified
Wed Jun 04
Author
Path
rules/linux/process_creation/proc_creation_lnx_local_groups.yml
Raw Tags
attack.discoveryattack.t1069.001