[metadata]
creation_date = "2023/07/10"
integration = ["endpoint"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/07/10"

[rule]
author = ["Elastic"]
building_block_type = "default"
description = "Identifies the use of built-in tools which adversaries may use to enumerate the system owner/user of a compromised system."
from = "now-119m"
interval = "60m"
index = ["auditbeat-*", "logs-endpoint.events.*"]
language = "eql"
license = "Elastic License v2"
name = "System Owner/User Discovery Linux"
risk_score = 21
rule_id = "bf8c007c-7dee-4842-8e9a-ee534c09d205"
severity = "low"
tags = ["Domain: Endpoint", "OS: Linux", "Use Case: Threat Detection", "Tactic: Discovery", "Rule Type: BBR", "Data Source: Elastic Defend"]
timestamp_override = "event.ingested"
type = "eql"
query = '''
process where event.type == "start" and
  process.name : ("whoami", "w", "who", "users", "id")
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1033"
name = "System Owner/User Discovery"
reference = "https://attack.mitre.org/techniques/T1033/"
[[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/"