McAfee has a Stinger program and shows the support@microsoft.com virus on the home page. Apparently it has been renamed to sobig virus, too... Virus Advisory[NL]W32/Palyh@MM is a Medium Risk worm. Virus Advisory[NL]W32/Fizzer.gen@MM is a Medium Risk virus. There is a description on how to remove it here http://vil.mcafee.com/dispVirus.asp?virus_k=100307