remote monitoring

First off....I do not really know a lot about this stuff...I have been trying to figure out how to send a keystroke logger to someone. I have looked all through this site and found some codes to attach to a jpeg and send via email but I just wanted some opinion if these can really work and how to "bind" it to the file?

My goal is to gain a couple of passwords and just what sites were visited if that makes a difference.

Thanks for taking the time to read and any help is greatly appreciated.