There seems to be two versions of this virus. Bugbear A and B. Here is a link for removal of these viruses:

http://www.norman.com/index_search_html/en-us

Press the ">>mer" and the virus should be removed.

You may also want to install ad-aware which is also useful.

http://www.snapfiles.com/get/adaware.html

I hope this may help you!