No joke in April Fool's Day computer worm

By John D. Sutter, CNN.com, March 24, 2009

(CNN) -- A computer-science detective story is playing out on the Internet as security experts try to hunt down a worm called Conficker C and prevent it from damaging millions of computers on April Fool's Day.

The anti-worm researchers have banded together in a group they call the Conficker Cabal. Members are searching for the malicious software program's author and for ways to do damage control if he or she can't be stopped.

The malicious program already is thought to have infected between 5 million and 10 million computers.

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Also see: How To Remove Conficker / Downadup Worm - Virus