32 lines
897 B
YAML
32 lines
897 B
YAML
title: Invoke-Obfuscation Via Stdin
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author: Nikita Nazarov, oscd.community
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date: 2020/10/12
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description: Detects Obfuscated Powershell via Stdin in Scripts
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detection:
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SELECTION_1:
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Payload|re: (?i).*(set).*&&\s?set.*(environment|invoke|\${?input).*&&.*"
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condition: SELECTION_1
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falsepositives:
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- Unknown
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id: c72aca44-8d52-45ad-8f81-f96c4d3c755e
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level: high
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logsource:
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category: ps_module
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definition: PowerShell Module Logging must be enabled
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product: windows
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modified: 2021/10/16
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references:
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- https://github.com/Neo23x0/sigma/issues/1009
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related:
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- id: 86b896ba-ffa1-4fea-83e3-ee28a4c915c7
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type: derived
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status: experimental
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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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yml_filename: powershell_invoke_obfuscation_via_stdin.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/powershell/powershell_module
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