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Flawed Trend Micro anti-virus update cripples PCs
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Written by Daniel   
Tuesday, 09 September 2008 11:55

Trend Micro security software updates incorrectly identified up to eight different Windows files as Trojans, then quarantined those files thinking they were dangerous 

By Gregg Keizer, Computerworld

 Anti-virus updates issued by Trend Micro on Friday crippled Windows XP and Vista PCs when they mistook several critical system files for malware, and blocked access to those files. 
Some users have yet to regain control of their PCs, according to e-mail sent to Computerworld.

 Two signature updates that Trend Micro released Friday for its most popular consumer security software incorrectly identified up to eight different Windows files as Trojans, then quarantined those files, thinking they were dangerous. The updates were issued to users running Trend Micro's AntiVirus plus AntiSpyware 2008, Internet Security 2008 and Internet Security Pro 2008. 

In some cases, quarantining the files prevented the PC from booting. Trend acknowledged the snafu, but said the buggy updates were out for only a short time. "For a brief period of time late last week primarily some continental European consumers were affected by a Trend Micro pattern-file update with a false positive that could have led to quarantining a few Windows components," said company spokeswoman Andrea Mueller in an e-mail. 

When it realized that the updates were flagging innocent files, Trend Micro issued a replacement signature update. [InfoWorld...]   [Comments...]
 

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