45 lines
1.1 KiB
YAML
45 lines
1.1 KiB
YAML
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title: Execute Code with Pester.bat
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ruletype: Sigma
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author: Julia Fomina, oscd.community
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date: 2020/10/08
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description: Detects code execution via Pester.bat (Pester - Powershell Modulte for
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testing)
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_2:
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Image: '*\powershell.exe'
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SELECTION_3:
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CommandLine: '*Pester*'
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SELECTION_4:
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CommandLine: '*Get-Help*'
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SELECTION_5:
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Image: '*\cmd.exe'
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SELECTION_6:
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CommandLine: '*pester*'
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SELECTION_7:
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CommandLine: '*;*'
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SELECTION_8:
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CommandLine:
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- '*help*'
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- '*?*'
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condition: (SELECTION_1 and ((SELECTION_2 and SELECTION_3 and SELECTION_4) or (SELECTION_5
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and SELECTION_6 and SELECTION_7 and SELECTION_8)))
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falsepositives:
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- Legitimate use of Pester for writing tests for Powershell scripts and modules
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id: 59e938ff-0d6d-4dc3-b13f-36cc28734d4e
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level: medium
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logsource:
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category: process_creation
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product: windows
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modified: 2021/11/27
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references:
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- https://twitter.com/Oddvarmoe/status/993383596244258816
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status: test
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tags:
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- attack.execution
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- attack.t1059.001
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- attack.defense_evasion
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- attack.t1216
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