Rahitor is a trojan downloader that downloads and installs a spying trojan named Agent.K on a computer from the virtumonde.com website. The trojan's file is downloaded into Windows directory and then activated. The downloader avoids downloading if the host's name contains 'mil' or 'gov' strings.
Allow F-Secure Anti-Virus to disinfect the relevant files.
For more general information on disinfection, please see Removal Instructions.