discovery_process_discovery_via_builtin_tools.toml

[metadata]
creation_date = "2023/07/11"
integration = ["endpoint"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/07/11"

[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"
interval = "60m"
index = ["logs-endpoint.events.*"]
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"]
timestamp_override = "event.ingested"
type = "eql"

query = '''
process where event.type == "start" and event.action == "exec" and
  process.name :("ps", "pstree", "htop", "pgrep") and
  not (event.action == "exec" and 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/"