A new method of propagation has given a computer worm a fresh lease on life. The Win32.Worm.Downadup, aka “Conficker” or “Kido,” first hit the world last year by exploiting the MS08-067 vulnerability that let it spread in loosely secured networks. Microsoft issued a patch for the vulnerability, but a large number of PCs have remained unpatched. Now, security researchers believe the worm can spread via USB thumb drives. In addition, 8.9 million PCs have been infected, according to F-Secure.
