I've known about this scam for a while.
http://www.abc.net.au/news/stories/2...section=justin
You are supposed to believe that Microsoft contacts you personnally and then offers free one to one assistance in removing a virus from your computer.
If you believe that then I have a nice bridge for sale.
I can't wait to get my call. I'll waste a bit of their time before complaining that their trojan doesn't run under Linux.