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.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
Detailed instructions for F-Secure security products are available in the documentation found in the Downloads section of our Home - Global site.
You may also refer to the Knowledge Base on the F-Secure Community site for further assistance.