shashank-elastic
70 lines
2.4 KiB
TOML
70 lines
2.4 KiB
TOML
[metadata]
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creation_date = "2022/11/09"
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integration = ["system", "windows"]
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maturity = "production"
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min_stack_comments = "New fields added: required_fields, related_integrations, setup"
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min_stack_version = "8.3.0"
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updated_date = "2023/10/23"
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[rule]
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author = ["Elastic"]
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description = """
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Identify the modification of the msPKIAccountCredentials attribute in an Active Directory User Object. Attackers can
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abuse the credentials roaming feature to overwrite an arbitrary file for privilege escalation. ms-PKI-AccountCredentials
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contains binary large objects (BLOBs) of encrypted credential objects from the credential manager store, private keys,
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certificates, and certificate requests.
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"""
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from = "now-9m"
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index = ["winlogbeat-*", "logs-system.*", "logs-windows.*"]
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language = "kuery"
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license = "Elastic License v2"
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name = "Modification of the msPKIAccountCredentials"
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references = [
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"https://www.mandiant.com/resources/blog/apt29-windows-credential-roaming",
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"https://social.technet.microsoft.com/wiki/contents/articles/11483.windows-credential-roaming.aspx",
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"https://learn.microsoft.com/en-us/windows/security/threat-protection/auditing/event-5136",
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]
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risk_score = 47
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rule_id = "670b3b5a-35e5-42db-bd36-6c5b9b4b7313"
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setup = """
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The 'Audit Directory Service Changes' logging policy must be configured for (Success, Failure).
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Steps to implement the logging policy with Advanced Audit Configuration:
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```
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Computer Configuration >
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Policies >
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Windows Settings >
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Security Settings >
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Advanced Audit Policies Configuration >
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Audit Policies >
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DS Access >
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Audit Directory Service Changes (Success,Failure)
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```
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"""
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severity = "medium"
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tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Data Source: Active Directory", "Tactic: Privilege Escalation", "Use Case: Active Directory Monitoring"]
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timestamp_override = "event.ingested"
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type = "query"
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query = '''
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event.action:"Directory Service Changes" and event.code:"5136" and
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winlog.event_data.AttributeLDAPDisplayName:"msPKIAccountCredentials" and winlog.event_data.OperationType:"%%14674" and
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not winlog.event_data.SubjectUserSid : "S-1-5-18"
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1068"
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name = "Exploitation for Privilege Escalation"
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reference = "https://attack.mitre.org/techniques/T1068/"
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[rule.threat.tactic]
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id = "TA0004"
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name = "Privilege Escalation"
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reference = "https://attack.mitre.org/tactics/TA0004/"
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