MSE Briefly Flags Google as Malware
By on February 15th, 2012

Microsoft Security Essentials, the free anti-virus program from the Redmond Giant, flagged, the most popular search in the world, as malware for a short period of time, yesterday.

MSE started showing warning messages when users tried to access Google from IE after a definition update named 1.119.1972.0. Soon, support requests started pouring in on Microsoft Support Forum and were noticed by noted Security expert, Brian Krebs.

“I first learned of this bug from a reader, and promptly updated a Windows XP system I have that runs Microsoft Security Essentials. Upon reboot, Internet Explorer told me that my homepage — — was serving up a ‘severe’ threat”, Brian wrote in a blog post.


The false positive appeared to users who had installed AV programs based on Forefront Anti-malware engine such as MSE and Forefront Client Security. The software detected Google as malware – Blacole.BW, a virus rated as severe by Microsoft.

Microsoft has since released an update for MSE which resolves this issue. If you are still getting the warning while trying to access Google, open Microsoft Security Essentials or Forefront Client security (whichever one you have installed) and update the definitions to the latest, which is 1.119.2014.0 at the time of writing of this article.

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Author: Nithin Ramesh Google Profile for Nithin Ramesh
Nithin is a blogger and a Windows security enthusiast. He is currently pursuing Bachelors in Electronics and Communication. Apart from technology his other interests include reading and rock music. His Twitter handle is @nithinr6

Nithin Ramesh has written and can be contacted at

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