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32 lines
1.1 KiB
YAML
32 lines
1.1 KiB
YAML
title: Suspicious PsExec Execution
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id: c462f537-a1e3-41a6-b5fc-b2c2cef9bf82
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description: detects execution of psexec or paexec with renamed service name, this rule helps to filter out the noise if psexec is used for legit purposes or if attacker uses a different psexec client other than sysinternal one
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author: Samir Bousseaden
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date: 2019/04/03
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references:
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- https://blog.menasec.net/2019/02/threat-hunting-3-detecting-psexec.html
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tags:
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- attack.lateral_movement
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- attack.t1077 # an old one
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- attack.t1021.002
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logsource:
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product: windows
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service: security
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definition: 'The advanced audit policy setting "Object Access > Audit Detailed File Share" must be configured for Success/Failure'
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detection:
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selection1:
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EventID: 5145
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ShareName: \\*\IPC$
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RelativeTargetName|endswith:
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- '-stdin'
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- '-stdout'
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- '-stderr'
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selection2:
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EventID: 5145
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ShareName: \\*\IPC$
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RelativeTargetName|startswith: 'PSEXESVC'
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condition: selection1 and not selection2
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falsepositives:
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- nothing observed so far
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level: high
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