Jonhnathan
51 lines
1.7 KiB
TOML
51 lines
1.7 KiB
TOML
[metadata]
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creation_date = "2021/07/06"
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deprecation_date = "2022/03/16"
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maturity = "deprecated"
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updated_date = "2022/03/16"
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[rule]
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author = ["Elastic"]
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description = """
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Detects attempts to exploit privilege escalation vulnerabilities related to the Print Spooler service. For more
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information refer to CVE-2021-34527 and verify that the impacted system is investigated.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Potential PrintNightmare Exploit Registry Modification"
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references = [
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"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34527",
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"https://github.com/afwu/PrintNightmare",
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]
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risk_score = 73
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rule_id = "6506c9fd-229e-4722-8f0f-69be759afd2a"
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severity = "high"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Privilege Escalation"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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/* This rule is not compatible with Sysmon due to schema issues */
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registry where process.name : "spoolsv.exe" and
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(registry.path : "HKLM\\SYSTEM\\ControlSet*\\Control\\Print\\Environments\\Windows*\\Drivers\\Version-3\\mimikatz*\\Data File" or
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(registry.path : "HKLM\\SYSTEM\\ControlSet*\\Control\\Print\\Environments\\Windows*\\Drivers\\Version-3\\*\\Configuration File" and
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registry.data.strings : ("kernelbase.dll", "ntdll.dll", "kernel32.dll", "winhttp.dll", "user32.dll")))
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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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name = "Exploitation for Privilege Escalation"
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id = "T1068"
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reference = "https://attack.mitre.org/techniques/T1068/"
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[rule.threat.tactic]
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name = "Privilege Escalation"
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id = "TA0004"
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reference = "https://attack.mitre.org/tactics/TA0004/"
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