A malicious program warning was issued by Mozilla on Wednesday for the Vietnamese Language Pack for Firefox 2. The malware in question was the Xorer Trojan, a malicious program that inserts adware code as the user visits websites.
Anyone who downloaded the Vietnamese Language Pack for Firefox 2 since Feburary 18th of 2008 received an infected copy of the plugin. Unfortunately, the Mozilla virus scan did not detect the problem until recently, several months after the initial upload. Mozilla says that the pack has been downloaded nearly 17,000 times. Of course, if you didn’t install this language pack you’re OK. If you did, you’ll need to disable this plugin and wait for an uninfected replacement pack.
Problems like this happen from time to time because, yes, even software developers will get a virus or trojan program on their systems. That’s why you should be careful even with commercial software.
Is your virus software up to date? Did you download this language pack? Are you concerned about getting malware from downloading plugins for Firefox or other programs you use? Leave me a comment and let me hear from you on the topic of malware.