42 lines
1.2 KiB
YAML
42 lines
1.2 KiB
YAML
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title: MSHTA Suspicious Execution 01
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author: Diego Perez (@darkquassar), Markus Neis, Swisscom (Improve Rule)
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date: 2019/02/22
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description: Detection for mshta.exe suspicious execution patterns sometimes involving
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file polyglotism
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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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CommandLine:
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- '*vbscript*'
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- '*.jpg*'
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- '*.png*'
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- '*.lnk*'
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- '*.xls*'
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- '*.doc*'
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- '*.zip*'
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condition: (SELECTION_1 and SELECTION_2 and SELECTION_3)
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falsepositives:
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- False positives depend on scripts and administrative tools used in the monitored
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environment
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id: cc7abbd0-762b-41e3-8a26-57ad50d2eea3
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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: 2020/08/23
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references:
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- http://blog.sevagas.com/?Hacking-around-HTA-files
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- https://0x00sec.org/t/clientside-exploitation-in-2018-how-pentesting-has-changed/7356
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- https://docs.microsoft.com/en-us/dotnet/standard/data/xml/xslt-stylesheet-scripting-using-msxsl-script
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- https://medium.com/tsscyber/pentesting-and-hta-bypassing-powershell-constrained-language-mode-53a42856c997
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status: experimental
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tags:
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- attack.defense_evasion
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- attack.t1140
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- attack.t1218.005
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ruletype: SIGMA
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