Feeds

AVG tags ZoneAlarm as Trojan

AV software meets firewall, has meltdown

Providing a secure and efficient Helpdesk

A dodgy anti-virus update from AVG wrongly flagged up the popular ZoneAlarm firewall as a Trojan on Tuesday.

The mis-firing AVG definition file tagged components of ZoneAlarm as infected with the Agent_r.CX Trojan horse and quarantined important files. As a result users running the popular antivirus package alongside security suite software from Check Point were left with a malfunctioning firewall, mystery infection reports and an inability to re-install their ZoneAlarm software.

The problem cropped up on ZoneAlarm support forums and persisted into the early hours of Tuesday morning, before AVG issued an update that fixed the false alarm. Prior to that Zone Alarm users hit with the issue were able to get around the problem only if they knew how to add the directory path for Zone Alarm as an exception to anti-virus scans.

An AVG spokeswoman explained: "We did accidentally tag Check Point’s Zone Alarm as a trojan. The detection was out for approximately 7.5 hours. As soon as we were notified of the issue, it was resolved and added to our whitelist. We were made aware of it around 3am and the issue was addressed and resolved within a few hours."

Faulty anti-virus definition files crop up across the industry from time to time. The AVG case is mainly notably in that involves a combination of popular security packages that a sizeable minority of users are likely to run alongside each other. More commonly false alarms cause problems when they label Windows systems files or commonplace JavaScript apps, for example, as potentially malicious. ®

Choosing a cloud hosting partner with confidence

More from The Register

next story
SMASH the Bash bug! Apple and Red Hat scramble for patch batches
'Applying multiple security updates is extremely difficult'
Shellshock: 'Larger scale attack' on its way, warn securo-bods
Not just web servers under threat - though TENS of THOUSANDS have been hit
Apple's new iPhone 6 vulnerable to last year's TouchID fingerprint hack
But unsophisticated thieves need not attempt this trick
Hackers thrash Bash Shellshock bug: World races to cover hole
Update your gear now to avoid early attacks hitting the web
Oracle SHELLSHOCKER - data titan lists unpatchables
Database kingpin lists 32 products that can't be patched (yet) as GNU fixes second vuln
Who.is does the Harlem Shake
Blame it on LOLing XSS terroristas
Researchers tell black hats: 'YOU'RE SOOO PREDICTABLE'
Want to register that domain? We're way ahead of you.
Stunned by Shellshock Bash bug? Patch all you can – or be punished
UK data watchdog rolls up its sleeves, polishes truncheon
prev story

Whitepapers

A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.