A Worm is a virus-like software application which spreads itself to other computers. Worms send themselves out to email addresses collected from the infected PC. Worms are known to mutate and they usually carry a destructive payload.
This pest can be classified as wery dangerous, because it includes a lot of dangerous functions, such as "keylogger" and "worm". It also has "trojan" abilities that allow it to infect the system via the e-mail. It tries tocopy itself to as many machines as possible, but it does not insert itself in to files. Instead it tries to replace them. The RAT was written by a hacker called Cryptic. The origination date is March 2001.