[meowface]

Copy all data to an external hard drive. Wipe current drive, reinstall OS, selectively copy back the files you need.

Any time you're infected with malware or strongly suspect you are, this is what you should do. It doesn't take that much time, plus you'll probably notice a big speed boost after you install the OS from a clean slate.

It'll take you way less time and effort than being paranoid and downloading all kinds of virus scanners and rootkit finders, while also being way more effective.

A hardware keylogger or spy device is extremely unlikely. If you don't see anything between the keyboard and the computer that shouldn't be there, odds are you're fine.