Hook WinAPI functions used by Valve Anti-Cheat. Log calls and intercept arguments & return values.
The DLL was written in C.
For compile it change to Release | x86 on Visual Studio If everything went right you should receive vac-hooks.dll binary file.
Usage -
Open Steam as Administrator, then open your favorite DLL injector and inject vac-hooks.dll into Steam.exe process.
After injection you should see vac-hooks.txt log file in Steam installation directory (e.g. C:\Program Files (x86)\Steam). The log file contains names of WinAPI functions being called by VAC, their parameters and return values.