Say, whatever happened to that SoC project to integrate antivirus support? Looks like he made quite a bit of progress: http://www.christoph-probst.com/soc2006/wine/
Stories like this http://blahblahblahblag.blogspot.com/2007/07/good-reason-to-have-antivirus-o... make me think we really need to get that integrated.
Wait for next blog. Maybe then you will be able to identify company user works for. Blog is practically empty. User profile does not give any details about blogger.
There is no anti-virus which can protect machine from user, new virus or targeted trojan. Every virus has a strike window. There is some time between virus release date and virus definition updates, that detect this virus. Every sane virus writer should check his creation against latest virus definitions in main anti-virus packages.