my post was going to say this:

Aw, isn't that nice, Microsoft have released a "Malicious Software removal tool" designed to remove some of the common nasty viruses, like SDbot etc. get it here.

but instead i have to write the following:

Microsoft, in an attempt to replace every software company in existance, have released a "Malicious Software Removal Tool". It's designed to get rid of some of the most common viruses such as sdbot etc. The only problem is that it doesn't actually work! Twice I ran it on a machine that had SDBot, yet it told me there was nothing wrong with the pc. Luckily Mcafee have a free tool that actually works, called stinger, get it here.