Expired or Revoked Driver Loaded

 1[metadata]
 2creation_date = "2023/06/26"
 3integration = ["endpoint"]
 4maturity = "production"
 5min_stack_comments = "New fields added: required_fields, related_integrations, setup"
 6min_stack_version = "8.3.0"
 7updated_date = "2024/03/28"
 8
 9[rule]
10author = ["Elastic"]
11description = """
12Identifies an attempt to load a revoked or expired driver. Adversaries may bring outdated drivers with vulnerabilities
13to gain code execution in kernel mode or abuse revoked certificates to sign their drivers.
14"""
15from = "now-9m"
16index = ["logs-endpoint.events.library-*"]
17language = "eql"
18license = "Elastic License v2"
19name = "Expired or Revoked Driver Loaded"
20references = [
21  "https://docs.microsoft.com/en-us/previous-versions/windows/hardware/design/dn653559(v=vs.85)?redirectedfrom=MSDN"
22]
23risk_score = 47
24rule_id = "d12bac54-ab2a-4159-933f-d7bcefa7b61d"
25severity = "medium"
26tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Privilege Escalation", "Tactic: Defense Evasion", "Data Source: Elastic Defend"]
27timestamp_override = "event.ingested"
28type = "eql"
29
30query = '''
31driver where host.os.type == "windows" and process.pid == 4 and
32  dll.code_signature.status : ("errorExpired", "errorRevoked")
33'''
34
35[[rule.threat]]
36framework = "MITRE ATT&CK"
37[[rule.threat.technique]]
38id = "T1068"
39name = "Exploitation for Privilege Escalation"
40reference = "https://attack.mitre.org/techniques/T1068/"
41
42
43[rule.threat.tactic]
44id = "TA0004"
45name = "Privilege Escalation"
46reference = "https://attack.mitre.org/tactics/TA0004/"
47
48[[rule.threat]]
49framework = "MITRE ATT&CK"
50[[rule.threat.technique]]
51id = "T1036"
52name = "Masquerading"
53reference = "https://attack.mitre.org/techniques/T1036/"
54
55[[rule.threat.technique.subtechnique]]
56id = "T1036.001"
57name = "Invalid Code Signature"
58reference = "https://attack.mitre.org/techniques/T1036/001/"
59
60
61[rule.threat.tactic]
62id = "TA0005"
63name = "Defense Evasion"
64reference = "https://attack.mitre.org/tactics/TA0005/"