Sober worm cracked
Finnish security firm F-Secure has cracked a code used by the Sober worm, potentially allowing the company to block the worm from receiving updates. Sober has mutated constantly since October 2003, when the first variant was picked up, with more than 20 other variants making the rounds. Last month the latest version, called Sober.Y by F-Secure (or CME-681 using US-CERT's CME naming system), was responsible for the biggest outbreak of the year, and still accounts for about 40 percent of all infections detected by F-Secure.
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