defense_evasion_service_path_registry.toml

[metadata]
creation_date = "2023/08/29"
integration = ["endpoint"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/08/29"

[rule]
author = ["Elastic"]
description = """
Identifies attempts to modify a service path by an unusual process. Attackers may attempt to modify existing services
for persistence or privilege escalation.
"""
from = "now-119m"
interval = "60m"
index = ["logs-endpoint.events.*", "endgame-*"]
language = "eql"
license = "Elastic License v2"
name = "Service Path Modification"
risk_score = 21
rule_id = "f243fe39-83a4-46f3-a3b6-707557a102df"
severity = "low"
tags = [
    "Domain: Endpoint",
    "OS: Windows",
    "Use Case: Threat Detection",
    "Tactic: Defense Evasion",
    "Data Source: Elastic Endgame",
    "Data Source: Elastic Defend",
    "Rule Type: BBR"
]
timestamp_override = "event.ingested"
building_block_type = "default"
type = "eql"

query = '''
registry where host.os.type == "windows" and event.type == "change" and
  registry.path : (
    "HKLM\\SYSTEM\\*ControlSet*\\Services\\*\\ImagePath",
    "\\REGISTRY\\MACHINE\\SYSTEM\\*ControlSet*\\Services\\*\\ImagePath"
  ) and not (
    process.executable : (
      "?:\\Program Files\\*.exe",
      "?:\\Program Files (x86)\\*.exe",
      "?:\\Windows\\System32\\services.exe",
      "?:\\Windows\\WinSxS\\*"
    )
  )
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1112"
name = "Modify Registry"
reference = "https://attack.mitre.org/techniques/T1112/"


[rule.threat.tactic]
id = "TA0005"
name = "Defense Evasion"
reference = "https://attack.mitre.org/tactics/TA0005/"

[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1543"
name = "Create or Modify System Process"
reference = "https://attack.mitre.org/techniques/T1543/"


    [[rule.threat.technique.subtechnique]]
    id = "T1543.003"
    name = "Windows Service"
    reference = "https://attack.mitre.org/techniques/T1543/003/"


[rule.threat.tactic]
id = "TA0003"
name = "Persistence"
reference = "https://attack.mitre.org/tactics/TA0003/"

[[rule.threat]]
framework = "MITRE ATT&CK"

[[rule.threat.technique]]
id = "T1543"
name = "Create or Modify System Process"
reference = "https://attack.mitre.org/techniques/T1543/"
[[rule.threat.technique.subtechnique]]
id = "T1543.003"
name = "Windows Service"
reference = "https://attack.mitre.org/techniques/T1543/003/"



[rule.threat.tactic]
id = "TA0004"
name = "Privilege Escalation"
reference = "https://attack.mitre.org/tactics/TA0004/"