discovery_process_discovery_via_builtin_tools.toml

[metadata]
creation_date = "2023/07/11"
integration = ["endpoint"]
maturity = "production"
updated_date = "2024/05/21"

[rule]
author = ["Elastic"]
building_block_type = "default"
description = "Identifies the use of built-in tools attackers can use to discover running processes on an endpoint."
from = "now-119m"
index = ["logs-endpoint.events.*", "endgame-*"]
interval = "60m"
language = "eql"
license = "Elastic License v2"
name = "Process Discovery via Built-In Applications"
risk_score = 21
rule_id = "3f4d7734-2151-4481-b394-09d7c6c91f75"
severity = "low"
tags = [
    "Domain: Endpoint",
    "OS: Linux",
    "OS: macOS",
    "Use Case: Threat Detection",
    "Tactic: Discovery",
    "Rule Type: BBR",
    "Data Source: Elastic Defend",
    "Data Source: Elastic Endgame",
]
timestamp_override = "event.ingested"
type = "eql"

query = '''
process where event.type == "start" and event.action in ("exec", "exec_event") and process.name in (
  "ps", "pstree", "htop", "pgrep"
) and 
not process.parent.name in ("amazon-ssm-agent", "snap")
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1057"
name = "Process Discovery"
reference = "https://attack.mitre.org/techniques/T1057/"

[[rule.threat.technique]]
id = "T1518"
name = "Software Discovery"
reference = "https://attack.mitre.org/techniques/T1518/"
[[rule.threat.technique.subtechnique]]
id = "T1518.001"
name = "Security Software Discovery"
reference = "https://attack.mitre.org/techniques/T1518/001/"



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