Mozilla has confirmed that the extensions Sothink Web Video Downloader 4.0 and all versions of Master Filer was a Trojan horse, to take control of the victim machine. It could be infected almost 5 thousand. computers.
The problem of the Mozilla announced on the blog - http://blog.mozilla.com/addons/2010/02/04/please-read-security-issue-on-amo/.Feralne ons have been removed from the official site for Firefox Extras -- https: / / addons.mozilla.org / en-US / firefox /. Sothink Web Video Downloader 4.0 and Master Filer can be downloaded from the special department, which hit a new add-ons. Their installation requires additional confirmation from the person who wants to add them to your browser.

Sothink Web Video Downloader collected about 4 thousand. times, more than 600 Master Filer If the people who benefited from them have installed Linux or Apple systems can sleep peacefully. Infection concern because only Microsoft systems. Trojan also found in Appendix Sothink Web Video Downloader versions higher than 4.0.

Persons who ever have installed any of the additives Mozilla advises - http://blog.mozilla.com/addons/2010/02/04/please-read-security-issue-on-amo/ich removal. Since this procedure does not remove a Trojan, it is necessary to use an antivirus program to clean the system.

Extras removed from the official site of supplements for Firefox, but the danger of infection is not gone with them, as they are available for download on other sites.

Although the infected were up 5 thousand. computers is not a record. In 2008, the other malicious software was even more effective. The worm placed in one of the additives in the Vietnamese language infected for several months. He managed to infect 17 thousand. computers.