The update Avira sent out on May 14 turned out to be problematic for many users and even companies because the antivirus kept detecting critical system processes as being malicious. The incident occurred due to the ProActiv module present in Antivirus Premium, Professional Security and Internet Security, customers of the free variant not being affected.
The update blocked processes such as dllhost.exe, exporer.exe, rundll.exe, iexplorer.exe, tasking.exe and many others.
The company’s forum became flooded with comments from unhappy customers, including a representative of a company which temporarily had to shut down its activity.
“Our enterprise uses Avira's Business Bundle extensively. We have 100 centrally managed users at this site alone, and a dozen users we support on the road. This update has been pretty catastrophic. The whole company ground to a standstill,” wrote AaronH.
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Now that's to be likely a huge problem FP that made a mistake by Avira.