I haven't ever attracted a single piece of malware from, well anything, including finding a program. Also, I don't know if I'd want to store or download stuff from a guy who says he's working on a keylogger that's's "undetectable" and assorted other viruses.
Yeah but you'll upload and download stuff from people you know nothing about (any uploading website)...
It's not a bad idea, he just needs to start it make it better with time and experience feedbacks.