phantinuss
34 lines
920 B
YAML
34 lines
920 B
YAML
title: Invoke-Obfuscation COMPRESS OBFUSCATION
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id: c70731dd-0097-40ff-b112-f7032f29c16c
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related:
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- id: 175997c5-803c-4b08-8bb0-70b099f47595
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type: derived
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description: Detects Obfuscated Powershell via COMPRESS OBFUSCATION
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status: unsupported
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author: Timur Zinniatullin, oscd.community
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date: 2020/10/18
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modified: 2022/03/08
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references:
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- https://github.com/Neo23x0/sigma/issues/1009 #(Task 19)
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logsource:
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product: windows
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category: driver_load
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detection:
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selection:
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ImagePath|contains|all:
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- 'new-object'
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- 'text.encoding]::ascii'
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ImagePath|contains:
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- 'system.io.compression.deflatestream'
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- 'system.io.streamreader'
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ImagePath|endswitch: 'readtoend'
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condition: selection
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falsepositives:
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- Unknown
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level: medium
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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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