frack113
30 lines
949 B
YAML
30 lines
949 B
YAML
title: Invoke-Obfuscation VAR++ LAUNCHER OBFUSCATION
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id: e54f5149-6ba3-49cf-b153-070d24679126
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description: Detects Obfuscated Powershell via VAR++ LAUNCHER
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status: experimental
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author: Timur Zinniatullin, oscd.community
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date: 2020/10/13
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modified: 2021/07/15
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references:
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- https://github.com/Neo23x0/sigma/issues/1009 #(Task27)
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tags:
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- attack.defense_evasion
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- attack.t1027
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- attack.execution
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- attack.t1059.001
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logsource:
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product: windows
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service: powershell
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definition: Script block logging must be enabled for 4104, Module Logging must be enabled for 4103
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detection:
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selection_1:
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EventID: 4104
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ScriptBlockText|re: '(?i).*&&set.*(\{\d\}){2,}\\\"\s+?\-f.*&&.*cmd.*\/c' # FPs with |\/r
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selection_2:
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EventID: 4103
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Payload|re: '(?i).*&&set.*(\{\d\}){2,}\\\"\s+?\-f.*&&.*cmd.*\/c' # FPs with |\/r
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condition: selection_1 or selection_2
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falsepositives:
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- Unknown
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level: high
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