Feeds

Mozilla admits Firefox add-on malware false alarm

One item of AMO badness just a blank

Beginner's guide to SSL certificates

Updated Mozilla has admitted it erred in labelling one of the two Firefox add-ons offered for download from its official add-on site as malign last week.

Warnings that version 4.0 of Sothink Video Downloader add-on was contaminated by a Trojan were wrong and down to a false positive triggered by an anti-virus scanner used by Mozilla rather than the presence of real malware. The add-on, withdrawn from download last week because of malware concerns, has now been restored.

In a blog posting on Tuesday, Mozilla apologised for the mix-up and confirmed the other add-on under suspicion, Master Filer, is infected by the Bifrose Trojan and remains blacklisted.

The open source browser firm thanked McAfee for helping it sort out the confusion. It's not clear whose scanner triggered the false alert in the first place.

Mozilla revised its estimates that 6,000 downloads of potentially infected downloads might have taken place radically downwards. It now reckons its site might have served up malware-laced Firefox plug-ins fewer than 700 times.

As previously reported, Master Filer was downloaded 600 times between September 2009 and January from Mozilla's official add-on site before potential problems were detected. A scanning tool used to check add-ons during the upload process failed to detect anything awry even though the password-stealing Trojan strain it was infected with has been detected by commercial scanners since October 2008.

Malware infection in Firefox add-ons is rare but not unprecedented. In May 2008, the open source browser supplier warned that a Vietnamese language pack for Firefox 2 was contaminated with adware. ®

Intelligent flash storage arrays

More from The Register

next story
You really need to do some tech support for Aunty Agnes
Free anti-virus software, expires, stops updating and p0wns the world
Attack reveals 81 percent of Tor users but admins call for calm
Cisco Netflow a handy tool for cheapskate attackers
Privacy bods offer GOV SPY VICTIMS a FREE SPYWARE SNIFFER
Looks for gov malware that evades most antivirus
Patch NOW! Microsoft slings emergency bug fix at Windows admins
Vulnerability promotes lusers to domain overlords ... oops
Oi, Europe! Tell US feds to GTFO of our servers, say Microsoft and pals
By writing a really angry letter about how it's harming our cloud business, ta
prev story

Whitepapers

Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
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.
5 critical considerations for enterprise cloud backup
Key considerations when evaluating cloud backup solutions to ensure adequate protection security and availability of enterprise data.
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?
Protecting against web application threats using SSL
SSL encryption can protect server‐to‐server communications, client devices, cloud resources, and other endpoints in order to help prevent the risk of data loss and losing customer trust.