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4/2/2009
03:25 PM
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OpenDNS Reports 500,000 Machines Infected By Conficker

April Fool's Day was mostly quiet -- but the number of machines hit by Conficker.C are starting to roll in

Though the Conficker worm watch was mostly for naught, among the data rolling in from Wednesday's activity is an OpenDNS report that says 500,000 of its customers were infected with the worm's latest variant. "That number is more than I expected," says David Ulevitch, founder of OpenDNS. "We're not representative of the whole Internet, of course, but to me this indicates the infection for [Conficker] is probably larger than people expected."

OpenDNS, which provide a domain name service offering, also found that among its customers, Vietnam has the highest rate of Conficker.C infection, with 13.3 percent; followed by Brazil, 11.6 percent; the Philippines, 11.1 percent; Indonesia, 10.9 percent; Algeria, 7.3 percent; the U.S., 4.7 percent; and India, just less than 4.7 percent.

Vietnamese researchers at security firm BKIS, meantime, reported earlier today 1.3 million Conficker.C-infected machines. BKIS found that worldwide, China has the highest rate of infection, with 13.8 percent, followed by Brazil (10.4 percent) and Russia (9.3 percent), and with the U.S. in the 2 percent range.

British Telecom, meanwhile, said it detected more than 25 Conficker.C worm infection incidents among its U.S. customers' networks.

"In general, the level of sophistication of Conficker is impressive," OpenDNS's Ulevitch says. "It will continue to evolve to evade detection...but we haven't seen it doing anything malicious yet. It's scary in that regard."

Have a comment on this story? Please click "Discuss" below. If you'd like to contact Dark Reading's editors directly, send us a message. Kelly Jackson Higgins is Executive Editor at DarkReading.com. She is an award-winning veteran technology and business journalist with more than two decades of experience in reporting and editing for various publications, including Network Computing, Secure Enterprise ... View Full Bio

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