windows community v1.0.0

fwpuclnt.dll

fwpuclnt.dll — Sideloading, Environment Variable hijacking (Microsoft)

📋 Live Preview
fwpuclnt.dll
fwpuclnt.dll

Sandbox: execFile · Timeout: 30s

Capabilities

security.defenseevasion.dll-hijack

Documentation

examples:

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

fwpuclnt.dll

Vendor: Microsoft

Expected Location: %SYSTEM32%

Vulnerable Executables:

  • %SYSTEM32%\checknetisolation.exe (Sideloading)
  • %SYSTEM32%\netsh.exe (Sideloading)
  • %SYSTEM32%\stordiag.exe (Environment Variable)

Acknowledgement: Wietze

References