frack113
29 lines
759 B
YAML
29 lines
759 B
YAML
title: Suspicious XOR Encoded PowerShell Command Line
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id: 812837bb-b17f-45e9-8bd0-0ec35d2e3bd6
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description: Detects suspicious powershell process which includes bxor command, alternative obfuscation method to b64 encoded commands.
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status: experimental
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author: Teymur Kheirkhabarov, Harish Segar (rule)
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date: 2020/06/29
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modified: 2021/08/28
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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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product: windows
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service: powershell-classic
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definition: fields have to be extract from event
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detection:
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selection:
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EventID: 400
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HostName: "ConsoleHost"
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filter:
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HostApplication|contains:
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- "bxor"
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- "join"
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- "char"
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condition: selection and filter
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falsepositives:
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- unknown
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level: medium
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