2020-10-12 22:13:13 +00:00
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title: PowerShell Decompress Commands
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id: 81fbdce6-ee49-485a-908d-1a728c5dcb09
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description: A General detection for specific decompress commands in PowerShell logs. This could be an adversary decompressing files.
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status: experimental
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date: 2020/05/02
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author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
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tags:
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- attack.defense_evasion
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- attack.t1140
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references:
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- https://github.com/OTRF/detection-hackathon-apt29/issues/8
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- https://threathunterplaybook.com/evals/apt29/detections/4.A.3_09F29912-8E93-461E-9E89-3F06F6763383.html
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logsource:
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product: windows
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service: powershell
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2021-08-21 07:50:59 +00:00
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definition: Script block logging must be enabled for 4104, Module Logging must be enabled for 4103
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2020-10-12 22:13:13 +00:00
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detection:
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selection1:
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EventID: 4104
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ScriptBlockText|contains: 'Expand-Archive'
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selection2:
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EventID: 4103
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Payload|contains: 'Expand-Archive'
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condition: selection1 or selection2
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falsepositives:
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- unknown
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2021-04-07 22:32:01 +00:00
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level: informational
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