Thread: Function Hooking, Video Tutorial

Tutorial on basic function hooking by Patrickssj6
In this tutorial we are going to use C++ and injection DLL to hook the function which updates the time inside MS Minesweeper.

[flash 700,500]http://www.vivid-abstractions.net/downloads/InDem%20Present/Hooking%20Tutorial.swf?build=1[/flash]

Full screen video

The hooking function:

void WriteJMP(byte* location, byte* newFunction){

   DWORD dwOldProtection;

   VirtualProtect(location, 5, PAGE_EXECUTE_READWRITE, &dwOldProtection);

      location[0] = 0xE9;

      *((dword*)(location + 1)) = (dword)(newFunction - location) - 5;

   VirtualProtect(location, 5, dwOldProtection, &dwOldProtection);

}