Feeds

Mozilla admits Firefox add-on malware false alarm

One item of AMO badness just a blank

SANS - Survey on application security programs

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 The add-on, withdrawn from download last week because of malware concerns, has now been restored.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. ®

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
Putin tells Snowden: Russia conducts no US-style mass surveillance
Gov't is too broke for that, Russian prez says
Snowden-inspired crypto-email service Lavaboom launches
German service pays tribute to Lavabit
Mounties always get their man: Heartbleed 'hacker', 19, CUFFED
Canadian teen accused of raiding tax computers using OpenSSL bug
Heartbleed exploit, inoculation, both released
File under 'this is going to hurt you more than it hurts me'
Arts and crafts store Michaels says 3 million credit cards exposed in breach
Meanwhile, Target investigators prepare for long process in nabbing hackers
Canadian taxman says hundreds pierced by Heartbleed SSL skewer
900 social insurance numbers nicked, says revenue watchman
prev story

Whitepapers

SANS - Survey on application security programs
In this whitepaper learn about the state of application security programs and practices of 488 surveyed respondents, and discover how mature and effective these programs are.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
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.