Questions and Answers: Conficker and April 1st

Q: I heard something really bad is going to happen on the Internet on April 1st! Will it?
A: No, not really.

Q: Seriously, the Conficker worm is going to do something bad on April 1st, right?
A: The Conficker aka Downadup worm is going to change it’s operation a bit, but that’s unlikely to cause anything visible on April 1st.

Q: So, what will it do on April 1st?
A: So far, Conficker has been polling 250 different domain names every day to download and run an update program. On April 1st, the latest version of Conficker will start to poll 500 out of 50,000 domains a day to do the same thing.

Q: The latest version? There are different versions out there?
A: Yes, and the latest version is not the most common. Most of the infected machines are infected with the B variant, which became widespread in early January. With B variant, nothing happens on April 1st.

Q: I just checked, and my Windows machine is clean. Is something going to happen to me on April 1st?
A: No.

Q: I’m running a Mac, is something going to happen to me?
A: No.

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