How to detect the dll or exe from the address(memory) of its function?

[saravananvv]

Hi, I need to know how i can detect a keylogger. I've found some basic technique in doing the same. The technique is 1.Get the image of the user32.dll 2.Disassemble the dll( traverse the user32.dll ie find the memory location of all the api in the user32.dll) 3.If the api is hooked means it will be having a jump instruction when the original api is called. 4.If this jump instruction points to a memory location outside the image of the user32.dll then the api is hooked otherwise it is not. 5.I've found the memory address of the hooked function. My question how can i detect the dll or exe from the function pointer address which i got from the discrepancies i found when the api is hooked. Pls provide a solution to that. Regards saravanan