windows community v1.0.0

fltlib.dll

fltlib.dll — Sideloading hijacking (Microsoft)

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fltlib.dll
fltlib.dll

Sandbox: execFile · Timeout: 30s

Capabilities

security.defenseevasion.dll-hijack
security.privilegeescalation.dll-hijack

Documentation

examples:

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

fltlib.dll

Vendor: Microsoft

Expected Location: %SYSTEM32%

Vulnerable Executables:

  • %SYSTEM32%\agentservice.exe (Sideloading)
  • %SYSTEM32%\bootim.exe (Sideloading)
  • %SYSTEM32%\compmgmtlauncher.exe (Sideloading)
  • %SYSTEM32%\dpiscaling.exe (Sideloading)
  • %SYSTEM32%\dfsrdiag.exe (Sideloading)
  • %SYSTEM32%\fltmc.exe (Sideloading)
  • %SYSTEM32%\psr.exe (Sideloading)
  • %SYSTEM32%\resmon.exe (Sideloading)
  • %SYSTEM32%\sdclt.exe (Sideloading) [AutoElevate]
  • %SYSTEM32%\slui.exe (Sideloading)
  • %SYSTEM32%\vssvc.exe (Sideloading)
  • %SYSTEM32%\wbengine.exe (Sideloading)
  • %SYSTEM32%\workfolders.exe (Sideloading)
  • %SYSTEM32%\write.exe (Sideloading)

Acknowledgement: Wietze

Acknowledgement: Chris Spehn

References