41 lines
1.1 KiB
YAML
41 lines
1.1 KiB
YAML
title: Suspicious PowerShell Invocation Based on Parent Process
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author: Florian Roth
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date: 2019/01/16
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description: Detects suspicious powershell invocations from interpreters or unusual
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programs
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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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ParentImage: '*\wscript.exe'
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SELECTION_3:
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ParentImage: '*\cscript.exe'
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SELECTION_4:
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Image: '*\powershell.exe'
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SELECTION_5:
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CurrentDirectory: '*\Health Service State\\*'
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condition: (SELECTION_1 and ((SELECTION_2 or SELECTION_3) and SELECTION_4) and not
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(SELECTION_5))
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falsepositives:
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- Microsoft Operations Manager (MOM)
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- Other scripts
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fields:
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- CommandLine
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- ParentCommandLine
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id: 95eadcb2-92e4-4ed1-9031-92547773a6db
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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: 2020/11/28
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references:
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- https://www.carbonblack.com/2017/03/15/attackers-leverage-excel-powershell-dns-latest-non-malware-attack/
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status: experimental
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tags:
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- attack.execution
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- attack.t1059.001
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- attack.t1086
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yml_filename: win_susp_powershell_parent_combo.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
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