The computer from Superman III demonstrated self-upgrading capabilities. As Computerworld reports …

Carberp, which targets computers running Microsoft’s Windows operating system, was discovered last October by several security companies and noted for its ability to steal a range of data as well as disguise itself as legitimate Windows files and remove antivirus software. It has been billed as a rival to Zeus, another well-known piece of malware.

Of course, in the movie, it didn’t really work out for the computer’s operator.