50 lines
1.1 KiB
YAML
50 lines
1.1 KiB
YAML
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title: Suspicious MSHTA Process Patterns
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author: Florian Roth
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date: 2021/07/17
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description: Detects suspicious mshta process patterns
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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: '*\mshta.exe'
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SELECTION_3:
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ParentImage:
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- '*\cmd.exe'
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- '*\powershell.exe'
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SELECTION_4:
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CommandLine:
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- '*\AppData\Local*'
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- '*C:\Windows\Temp*'
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- '*C:\Users\Public*'
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SELECTION_5:
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Image:
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- '*C:\Windows\System32*'
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- '*C:\Windows\SysWOW64*'
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SELECTION_6:
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CommandLine:
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- '*.htm*'
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- '*.hta*'
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SELECTION_7:
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CommandLine:
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- '*mshta.exe'
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- '*mshta'
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condition: (SELECTION_1 and SELECTION_2 and (((SELECTION_3 or SELECTION_4) or not
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(SELECTION_5)) or not (SELECTION_6 and SELECTION_7)))
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falsepositives:
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- Unknown
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id: e32f92d1-523e-49c3-9374-bdb13b46a3ba
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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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references:
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- https://en.wikipedia.org/wiki/HTML_Application
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- https://www.echotrail.io/insights/search/mshta.exe
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- https://app.any.run/tasks/34221348-072d-4b70-93f3-aa71f6ebecad/
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status: experimental
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tags:
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- attack.execution
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- attack.t1106
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ruletype: SIGMA
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