A big battle’s over, but the worm war continues
Eleventh-hour efforts by security experts, Internet service providers and law enforcement apparently blocked the execution of a scheduled updating of the Sobig worm this weekend, but the venerable code continues to pose a threat.
The most recent variant of the worm, Sobig.F, was scheduled to contact servers this past Friday and Sunday to get an address, from which it would download additional instructions. At least 19 of 20 compromised computers identified as Sobig servers were taken offline or blocked, foiling the attempt. The remaining computer apparently was swamped by the traffic and was unable to upload its instructions.
But “Sobig isn’t over yet,” said Ken Dunham, malicious code intelligence manager at iDefense Inc. of Reston, Va. “The worm is still spreading rapidly.”
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- Virus: I-Worm.Sobig.f (21 August 2003)
- Software: Sophos Anti Sobig-F
- Virus News: Sobig-F Worm Spreading Fast, Sophos Suspects Author Is Using Spam Techniques (19 August 2003)