windows community v1.0.0

utildll.dll

utildll.dll — Sideloading hijacking (Microsoft)

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utildll.dll
utildll.dll

Sandbox: execFile · Timeout: 30s

Capabilities

security.defenseevasion.dll-hijack

Documentation

examples:

  • description: "Place malicious utildll.dll in the search order location" command: "copy malicious.dll "%SYSTEM32%\utildll.dll""
  • description: "Execute the vulnerable binary to trigger the hijack" command: ""%SYSTEM32%\change.exe""

utildll.dll

Vendor: Microsoft

Expected Location: %SYSTEM32%

Vulnerable Executables:

  • %SYSTEM32%\change.exe (Sideloading)
  • %SYSTEM32%\chglogon.exe (Sideloading)
  • %SYSTEM32%\chgport.exe (Sideloading)
  • %SYSTEM32%\query.exe (Sideloading)
  • %SYSTEM32%\quser.exe (Sideloading)
  • %SYSTEM32%\qprocess.exe (Sideloading)
  • %SYSTEM32%\qwinsta.exe (Sideloading)
  • %SYSTEM32%\reset.exe (Sideloading)
  • %SYSTEM32%\rwinsta.exe (Sideloading)
  • %SYSTEM32%\tscon.exe (Sideloading)
  • %SYSTEM32%\tskill.exe (Sideloading)

Acknowledgement: Wietze

Acknowledgement: Chris Spehn

References