48 lines
1011 B
YAML
48 lines
1011 B
YAML
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title: MSHTA Spawning Windows Shell
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ruletype: Sigma
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author: Michael Haag
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date: 2019/01/16
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description: Detects a Windows command line executable started from MSHTA
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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: '*\mshta.exe'
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SELECTION_3:
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Image:
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- '*\cmd.exe'
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- '*\powershell.exe'
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- '*\wscript.exe'
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- '*\cscript.exe'
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- '*\sh.exe'
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- '*\bash.exe'
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- '*\reg.exe'
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- '*\regsvr32.exe'
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SELECTION_4:
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Image:
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- '*\BITSADMIN*'
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condition: (SELECTION_1 and SELECTION_2 and (SELECTION_3 or SELECTION_4))
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falsepositives:
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- Printer software / driver installations
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- HP software
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fields:
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- CommandLine
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- ParentCommandLine
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id: 03cc0c25-389f-4bf8-b48d-11878079f1ca
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level: high
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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://www.trustedsec.com/july-2015/malicious-htas/
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status: test
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tags:
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- attack.defense_evasion
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- attack.t1170
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- attack.t1218.005
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- car.2013-02-003
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- car.2013-03-001
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- car.2014-04-003
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