If you have the necessary patience, you could try downloading the F-secure removal tool from this link ftp://ftp.f-secure.com/anti-virus/tools/f-bugbr.zip Else, if you don't have an antivirus and you are unable to install it, it is very unlikely to get rid of the virus, you might be needed to format the C drive, reinstall your OS, install and antivirus and perform a fullscan of your computer.
