Source:
PC MagConficker has become the boogeyman of the security industry over the last year. The latest variant of the worm, Conficker.C, is programmed to do something on April 1. But what exactly will happen? The scary thing is, no one can say for sure.
Some security experts such as Eset are urging you to back up in advance of April 1 and to make sure that your security software is working properly. Of course (and they say this too) these are things you should do in any event. But make sure that the update mechanisms for Windows and your anti-malware are actually occurring because Conficker can turn them off.
But the big news with "C" is that the code is scheduled to come alive on April 1 and start contacting the 50,000 domains and download something. What will they download? What will it make the bots do? Honestly, nobody knows. This is the great mystery.
Conficker is really sophisticated as malware goes. It's clear that its authors are smart people and perhaps that's what's got security people worried. But the only rational way to approach this is to do the things you know you need to do anyway and then not get hung up on it. Remember, there's a very good chance that on April 1 nothing much will happen.
Read more:
http://www.pcmag.com/article2/0,2817,2343910,00.asp
When I first heard about this, I thought it was an April Fools joke, but it's apparently very real. This has the ability to do serious damage to your computer and some are theorizing it may actually cripple the web or at least many businesses. This is more than just some kid in the basement, these people are highly sophisticated (even using the latest paper from an MIT professor to sharpen their attack) and led Microsoft to offer a quarter of a million dollar reward for offending parties. BTW, one of the ways this infects computers is through auto-run in Microsoft Window (Macs and Linux not affected by this particular attack). If you haven't done so, turn it off (the easiest way is by downloading Tweak UI from Microsoft and following this guide:
http://www.youtube.com/watch?v=gUmNuR13P4E