Panda antivirus mistakenly flags itself as malware, bricks PCs

[starbuck]

For now, Panda warns users not to restart -- in case you can't get running again.

An update to a number of Panda antivirus programs Wednesday mistakenly flagged core files as malware, putting them in quarantine. In doing so, the antivirus system ceased working.

 

First reported by The Register, machines are left unstable, or unable to access the Internet.

 

Panda's free antivirus, retail 2015 service, and its enterprise cloud-based antimalware service are all affected. It's not clear how many machines are affected.

 

The company took to Twitter to warn users: "Please, Don't reboot PCs. We'll keep you posted."

 

In an advisory, Panda said the erroneous signature file was "repaired immediately," but warned under certain conditions it is possible for the "incident to persist."

 

It's not the first time an antimalware service has mistakenly classified core files as malware. In 2010, McAfee accidentally deleted a crucial Windows XP file, leaving millions of machines bricked.

 

Last month, Google-owned VirusTotal teamed up with a number of companies, including Microsoft, to reduce the number of false-flags in its antivirus products.

 

 

Source:

http://www.zdnet.com/article/panda-antivirus-mistakenly-flags-itself-as-malware-breaks-pcs/#ftag=RSSbaffb68

[AWS]

Whoa. I seem to remember MacAffee having this problem years ago. Something with the Chernobyl virus scanning algorithm flagged some Windows exe's.