A software always runs on a computer. A software always do what its creator wants it to do. If the software doesn’t do what its creator wanted, it is a mistake from the coder, a bug. If the software runs without the consent of the computer’s owner, it is a malware/virus. Stopping a software is as easy as shutting down the computer on which it is running. Terminator and Mission Impossible are hollywood fiction, there’s no such thing as "rogue software".