Poltergeist

A Remote Administration Tool is a special kind of hacker malware, used for remote access and control of other people's PCs. The attacker infects the PC via the e-mail or File and Print Sharing. A "server" allows him to connect via a "client" on his own machine. The functions of a RAT may vary, depending on the needs of the hacker. Some RATs can't really harm your PC and the only purpose they were made for is hooliganism. But some versions can steal vital information, remove files and even crash your computer. You can guess by the name of this pest that its prime function is annoying the victim. Several versions appeared in the internet from July 2003 to February 2004. The author is a hacker called Trainwreck. He wrote this pest in Visual Basic applicationming language.