The Downadup/ Conficker/ Kido worm is no laughing matter. Please, for the love of all things technology make sure that you don’t have it.
Run Windows Updates! Get a good virus scan (if you don’t already have one), and make sure that the virus scan is up-to-date.
I’ve already written about this worm before, but it is so dangerous that the warning bears repeating.
It is entirely possible that the initial worm which has infected millions of PCs around the world might be the first wave. Conficker looks like it has the capabilities to update itself and trigger a second wave of attacks – which could be more vicious.
This is one of those problems where the technical reasons and manner in which the worm works, don’t really matter. What does matter is that you make sure you are not and infected.
If you care to read more about Conficker or the tech industries united front against this menace, this article is pretty good:
Please! Please! Please! Practice safe computing by staying Conficker free.