Official Vanguard Anti-Cheat source code.
For ease, an unprotected compiled version of Vanguard is available.
- Download the 3 files provided.
- Run the "Install (Run As Admin)" batch file (as admin).
- Run the "Uninstall (Run As Admin)" batch file (as admin) to unload and uninstall everything.
The partial source code to this driver is provided for your viewing pleasure. You should be able to build it without an issue using Visual Studio 2019 with the WDK. The exact instructions are left as an exercise to the reader.