Florian Roth
48 lines
1.4 KiB
YAML
48 lines
1.4 KiB
YAML
title: Suspicious Encoded PowerShell Command Line
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id: ca2092a1-c273-4878-9b4b-0d60115bf5ea
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description: Detects suspicious powershell process starts with base64 encoded commands (e.g. Emotet)
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status: experimental
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references:
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- https://app.any.run/tasks/6217d77d-3189-4db2-a957-8ab239f3e01e
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author: Florian Roth, Markus Neis
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date: 2018/09/03
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modified: 2020/10/20
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tags:
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- attack.execution
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- attack.t1059.001
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- attack.t1086 # an old one
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logsource:
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category: process_creation
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product: windows
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detection:
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selection:
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CommandLine:
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- '* -e JAB*'
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- '* -e JAB*'
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- '* -e JAB*'
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- '* -e JAB*'
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- '* -e JAB*'
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- '* -e JAB*'
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- '* -en JAB*'
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- '* -enc JAB*'
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- '* -enc* JAB*'
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- '* -w hidden -e* JAB*'
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- '* BA^J e-'
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- '* -e SUVYI*'
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- '* -e aWV4I*'
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- '* -e SQBFAFgA*'
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- '* -e aQBlAHgA*'
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- '* -enc SUVYI*'
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- '* -enc aWV4I*'
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- '* -enc SQBFAFgA*'
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- '* -enc aQBlAHgA*'
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- '* -e* IAA*'
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- '* -e* IAB*'
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- '* -e* UwB*'
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- '* -e* cwB*'
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- '*.exe -ENCOD *'
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falsepositive1:
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CommandLine: '* -ExecutionPolicy remotesigned *'
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condition: selection and not falsepositive1
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level: high
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