sigma-rules/rules_building_block/discovery_of_domain_groups.toml

[metadata]
creation_date = "2023/08/23"
integration = ["endpoint", "auditd_manager", "crowdstrike"]
maturity = "production"
updated_date = "2025/10/17"

[rule]
author = ["Elastic"]
building_block_type = "default"
description = """
Identifies the execution of Linux built-in commands related to account or group enumeration. Adversaries may use account
and group information to orient themselves before deciding how to act.
"""
from = "now-119m"
index = ["logs-endpoint.events.*", "endgame-*", "auditbeat-*", "logs-auditd_manager.auditd-*", "logs-crowdstrike.fdr*"]
interval = "60m"
language = "eql"
license = "Elastic License v2"
name = "Discovery of Domain Groups"
risk_score = 21
rule_id = "b92d5eae-70bb-4b66-be27-f98ba9d0ccdc"
severity = "low"
tags = [
  "Domain: Endpoint",
  "OS: Linux",
  "Use Case: Threat Detection",
  "Tactic: Discovery",
  "Rule Type: BBR",
  "Data Source: Elastic Defend",
  "Data Source: Elastic Endgame",
  "Data Source: Auditd Manager",
  "Data Source: Crowdstrike",
]
timestamp_override = "event.ingested"
type = "eql"

query = '''
process where host.os.type == "linux" and event.type == "start" and event.action in ("exec", "exec_event", "executed", "process_started", "ProcessRollup2")
 and (
  process.name in ("ldapsearch", "dscacheutil") or (process.name == "dscl" and process.args : "*-list*")
)
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1069"
name = "Permission Groups Discovery"
reference = "https://attack.mitre.org/techniques/T1069/"


[rule.threat.tactic]
id = "TA0007"
name = "Discovery"
reference = "https://attack.mitre.org/tactics/TA0007/"