windows community v1.0.0

appvisvsubsystems64.dll

appvisvsubsystems64.dll — Sideloading hijacking (Microsoft)

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appvisvsubsystems64.dll
appvisvsubsystems64.dll

Sandbox: execFile · Timeout: 30s

Capabilities

security.defenseevasion.dll-hijack

Documentation

examples:

  • description: "Place malicious appvisvsubsystems64.dll in the search order location" command: "copy malicious.dll "%PROGRAMFILES%\Common Files\microsoft shared\ClickToRun\appvisvsubsystems64.dll""
  • description: "Execute the vulnerable binary to trigger the hijack" command: ""%PROGRAMFILES%\Microsoft Office\root\Office%VERSION%\winword.exe""

appvisvsubsystems64.dll

Vendor: Microsoft

Expected Location: %PROGRAMFILES%\Common Files\microsoft shared\ClickToRun

Vulnerable Executables:

  • %PROGRAMFILES%\Microsoft Office\root\Office%VERSION%\winword.exe (Sideloading)
  • %PROGRAMFILES%\Microsoft Office\root\Office%VERSION%\powerpnt.exe (Sideloading)

Acknowledgement: Still Hsu

References