frack113
31 lines
1014 B
YAML
31 lines
1014 B
YAML
title: Suspicious Subsystem for Linux Bash Execution
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id: 5edc2273-c26f-406c-83f3-f4d948e740dd
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status: experimental
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description: Performs execution of specified file, can be used for defensive evasion.
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references:
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- https://lolbas-project.github.io/lolbas/Binaries/Bash/
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author: frack113
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date: 2021/11/24
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modified: 2022/10/26
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tags:
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- attack.defense_evasion
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- attack.t1202
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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|contains|all:
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- bash.exe
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- '-c '
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filter_git:
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- ParentCommandLine|contains:
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- 'C:\Program Files\Git\post-install.bat'
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- 'C:\Program Files (x86)\Git\post-install.bat'
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- 'echo /etc/post-install/*.post' # needed for occurrences where the *.bat is the grandparent
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- CommandLine|contains: 'echo /etc/post-install/*.post' # needed for WinEvtLog 4688 events
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condition: selection and not 1 of filter*
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falsepositives:
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- Unknown
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level: medium
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