Zombie

1. Term used to describe a process that is doing nothing but utilizing system resources.
2. A computer that has been maliciously setup to do work of another program or users. A zombie computer is often a computer or server that has been compromised to help a malicious user perform a Denial Of Service attack (DoS) or DDoS attack.
3. When referring to chat or IRC, a zombie or ghost refers to a user who has lost connection but their user is still logged into the chat server.

Also see: Chat definitions, Network definitions, Programming definitions, Security definitions, Zombie network