DCAWD.com

Microsoft scrambled earlier today to revise an antivirus definition file that deleted Google's Chrome browser from users' PCs.

"Wow, that's certainly one way to win the browser war," said Andrew Storms, director of security operations at nCircle Security.

Storms was referring to the battle between Microsoft's Internet Explorer (IE) and rivals, including Chrome, for usage share. According to data from one Web metrics firm, Chrome will pass Mozilla's Firefox as the second-most-popular browser by the end of this year, pitting Google and Microsoft for the top spot.

Chrome users began reporting the specious detection of the browser early Friday in a quickly-growing thread on a Google support forum.

"This morning, after I started up the PC, a Windows Security box popped up and said I had a Security Problem that needed to be removed," said someone identified as "chasd harris" in the first message of the thread. "I clicked the Details button and saw that it was 'PWS:Win32/Zbot.' I clicked the Remove button and restarted my PC. Now I do not have Chrome. It has been removed or uninstalled."

Scores of others reported the same behavior on their Windows PCs running Microsoft's Security Essentials -- its free, consumer-grade antivirus software -- as well as Forefront, the antivirus product designed for enterprises.

Microsoft issued a corrected definition file around 10 a.m. PT Friday, about three hours after users began reporting the false positive on Google's support forum.

Several bloggers, including ZDNet's Ryan Naraine and Ed Bott, reported the problem earlier today.

Microsoft has acknowledged the gaffe, and said approximately 3,000 users were affected.

ElZorro wrote:I wonder how many zeros there were in the check that M$ already put in the mail to Google to keep a law suit out of the press.