sigma-rules/rules/windows/privilege_escalation_lsa_auth_package.toml

[metadata]
creation_date = "2021/01/21"
integration = ["endpoint"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/06/22"

[rule]
author = ["Elastic"]
description = """
Adversaries can use the autostart mechanism provided by the Local Security Authority (LSA) authentication packages for
privilege escalation or persistence by placing a reference to a binary in the Windows registry. The binary will then be
executed by SYSTEM when the authentication packages are loaded.
"""
from = "now-9m"
index = ["logs-endpoint.events.*", "endgame-*"]
language = "eql"
license = "Elastic License v2"
name = "Potential LSA Authentication Package Abuse"
risk_score = 47
rule_id = "e9abe69b-1deb-4e19-ac4a-5d5ac00f72eb"
severity = "medium"
tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Privilege Escalation", "Data Source: Elastic Endgame", "Data Source: Elastic Defend"]
timestamp_override = "event.ingested"
type = "eql"

query = '''
registry where host.os.type == "windows" and event.type == "change" and
  registry.path : (
      "HKLM\\SYSTEM\\*ControlSet*\\Control\\Lsa\\Authentication Packages",
      "\\REGISTRY\\MACHINE\\SYSTEM\\*ControlSet*\\Control\\Lsa\\Authentication Packages"
  ) and
  /* exclude SYSTEM SID - look for changes by non-SYSTEM user */
  not user.id : "S-1-5-18"
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1547"
name = "Boot or Logon Autostart Execution"
reference = "https://attack.mitre.org/techniques/T1547/"
[[rule.threat.technique.subtechnique]]
id = "T1547.002"
name = "Authentication Package"
reference = "https://attack.mitre.org/techniques/T1547/002/"



[rule.threat.tactic]
id = "TA0004"
name = "Privilege Escalation"
reference = "https://attack.mitre.org/tactics/TA0004/"
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1547"
name = "Boot or Logon Autostart Execution"
reference = "https://attack.mitre.org/techniques/T1547/"
[[rule.threat.technique.subtechnique]]
id = "T1547.002"
name = "Authentication Package"
reference = "https://attack.mitre.org/techniques/T1547/002/"



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