The New York Times speculates on what the Conflicker worm is all about. Read the full story here:
Speculation about Conficker’s purpose ranges from the benign — an April Fool’s Day prank — to far darker notions. One likely possibility is that the program will be used in the “rent-a-computer-crook” business, something that has been tried previously by the computer underground. Just like Amazon.com offers computing time on its network for rent, the Conficker team might rent access to its “network” for nefarious purposes like spamming.
Make sure your Windows boxes are updated, your firewalls are secure, and your anti-malware programs are current.