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.

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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);

}