windows community v1.0.0

nethost.dll

nethost.dll — Sideloading hijacking (Microsoft)

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nethost.dll
nethost.dll

Sandbox: execFile · Timeout: 30s

Capabilities

security.defenseevasion.dll-hijack

Documentation

examples:

  • description: "Place malicious nethost.dll in the search order location" command: "copy malicious.dll "%PROGRAMFILES%\dotnet\packs\Microsoft.NETCore.App.Host.win-x64\%VERSION%\runtimes\win-x64\native\nethost.dll""
  • description: "Execute the vulnerable binary to trigger the hijack" command: ""%PROGRAMFILES%\Proton\VPN\ProtonVPN.exe""

nethost.dll

Vendor: Microsoft

Expected Location: %PROGRAMFILES%\dotnet\packs\Microsoft.NETCore.App.Host.win-x64%VERSION%\runtimes\win-x64\native

Vulnerable Executables:

  • %PROGRAMFILES%\Proton\VPN\ProtonVPN.exe (Sideloading)

Acknowledgement: Josh Allman

References