Malwarebytes update accidentally deletes legitimate system files

Posted on Thursday, Apr 18 2013 @ 13:08 CEST by Thomas De Maesschalck
The Inquirer reports Malwarebytes rolled out a faulty update earlier this week that flagged legitimate system files as malware:
The security firm confessed to the mistake in a blog post on Tuesday, and assured firms that the update has since been pulled.

"It saddens me to report that at around 3PM PST yesterday, Malwarebytes released a definitions update that disabled thousands of computers worldwide," wrote Malwarebytes Marcin Kleczynski.

"Within eight minutes, the update was pulled from our servers. Immediately thereafter, users flocked to our support helpdesk and forums to ask us for a fix."

The update definition made it so Malwarebytes protection software treated essential Windows .dll and .exe files as malware, stopping them from running and thus knocking IT systems and PCs offline.

The INQUIRER has heard from some IT managers that the update caused untold havoc on their systems.

About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

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