Feeds

AVG tags ZoneAlarm as Trojan

AV software meets firewall, has meltdown

High performance access to file storage

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. ®

High performance access to file storage

More from The Register

next story
Obama allows NSA to exploit 0-days: report
If the spooks say they need it, they get it
Parent gabfest Mumsnet hit by SSL bug: My heart bleeds, grins hacker
Natter-board tells middle-class Britain to purée its passwords
Web data BLEEDOUT: Users to feel the pain as Heartbleed bug revealed
Vendors and ISPs have work to do updating firmware - if it's possible to fix this
OpenSSL Heartbleed: Bloody nose for open-source bleeding hearts
Bloke behind the cockup says not enough people are helping crucial crypto project
One year on: diplomatic fail as Chinese APT gangs get back to work
Mandiant says past 12 months shows Beijing won't call off its hackers
Call of Duty 'fragged using OpenSSL's Heartbleed exploit'
So it begins ... or maybe not, says one analyst
Experian subsidiary faces MEGA-PROBE for 'selling consumer data to fraudster'
US attorneys general roll up sleeves, snap on gloves
Oz bank in comedy Heartbleed blog FAIL
Bank: 'We are now safely patched.' Customers: 'You were using OpenSSL?'
prev story

Whitepapers

Mainstay ROI - Does application security pay?
In this whitepaper learn how you and your enterprise might benefit from better software security.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.