Justin Ibarra
46 lines
1.2 KiB
TOML
46 lines
1.2 KiB
TOML
[metadata]
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creation_date = "2020/08/14"
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ecs_version = ["1.6.0"]
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maturity = "production"
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updated_date = "2020/11/03"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies suspicious psexec activity which is executing from the psexec service that has been renamed, possibly to
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evade detection.
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"""
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from = "now-9m"
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index = ["winlogbeat-*", "logs-endpoint.events.*"]
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language = "kuery"
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license = "Elastic License"
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name = "Suspicious Process Execution via Renamed PsExec Executable"
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risk_score = 47
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rule_id = "e2f9fdf5-8076-45ad-9427-41e0e03dc9c2"
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severity = "medium"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Execution"]
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type = "query"
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query = '''
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event.category:process and event.type:(start or process_started) and
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(process.pe.original_file_name:(psexesvc.exe or PSEXESVC.exe) or
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winlog.event_data.OriginalFileName:(psexesvc.exe or PSEXESVC.exe)) and
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process.parent.name:services.exe and
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not process.name:(psexesvc.exe or PSEXESVC.exe)
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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 = "T1035"
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name = "Service Execution"
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reference = "https://attack.mitre.org/techniques/T1035/"
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[rule.threat.tactic]
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id = "TA0002"
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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