[xevenofhearts]

Wait... are you talking about spreading via USB flash drive? That is quite common (Used to be via autorun.inf, now they use exploits like the LNK exploit). Or a hardware keylogger? (they exist too, you plug them between the keyboard and the computer and they monitor every key. No installation required, undetectable by antiviruses and work on any OS).

Pretty much. I think that there are hardware key loggers from KeyGhost or some company along those lines, I really just don't want to buy one because they're kind of expensive.

\\\ Edit to your edit: I will for sure check that out. Is it for OS X?