Account or Group Discovery via Built-In Toolsedit
Adversaries may use built-in applications to get a listing of local system or domain accounts and groups.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- endgame-*
- auditbeat-*
- logs-auditd_manager.auditd-*
Severity: low
Risk score: 21
Runs every: 60m
Searches indices from: now-119m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References: None
Tags:
- Domain: Endpoint
- OS: Linux
- OS: macOS
- Use Case: Threat Detection
- Tactic: Discovery
- Rule Type: BBR
- Data Source: Elastic Defend
- Data Source: Elastic Endgame
- Data Source: Auditd Manager
Version: 3
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule queryedit
process where event.type == "start" and event.action in ("exec", "exec_event", "executed", "process_started") and (
(process.name in ("groups", "id")) or
(process.name == "dscl" and process.args : ("/Active Directory/*", "/Users*", "/Groups*")) or
(process.name == "dscacheutil" and process.args in ("user", "group")) or
(process.args in ("/etc/passwd", "/etc/master.passwd", "/etc/sudoers")) or
(process.name == "getent" and process.args in ("passwd", "group"))
)
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
-
Technique:
- Name: Permission Groups Discovery
- ID: T1069
- Reference URL: https://attack.mitre.org/techniques/T1069/
-
Sub-technique:
- Name: Local Groups
- ID: T1069.001
- Reference URL: https://attack.mitre.org/techniques/T1069/001/
-
Sub-technique:
- Name: Domain Groups
- ID: T1069.002
- Reference URL: https://attack.mitre.org/techniques/T1069/002/
-
Technique:
- Name: Account Discovery
- ID: T1087
- Reference URL: https://attack.mitre.org/techniques/T1087/
-
Sub-technique:
- Name: Local Account
- ID: T1087.001
- Reference URL: https://attack.mitre.org/techniques/T1087/001/
-
Sub-technique:
- Name: Domain Account
- ID: T1087.002
- Reference URL: https://attack.mitre.org/techniques/T1087/002/