Sitting at work browsing the internet and suddenly I have alerts saying I have a virus problem, its a works PC so not supposed to download any software but downloaded Spybot as the virus software on the machine wont get rid of the spyware, Spybot picks up Virtumonde.generic, virtumone and virtumonde.sci , having checked for problems and Spybot 'fixes' the problems, on Reboot of the machine the blighters are still there.
Can I fix this without getting my bawls chewed and having to go to our IT dept.

Thanks for any advice in advance