Trojan.Brisv – an interesting backing track

trojanMy colleagues at Symantec Security Reponse have seen a significant uptick this week regarding Trojan.Brisv.A, a threat that infects multimedia files.  This trojan searches for multimedia files with extensions .asf, .mp2, .mp3, .wma and .wmv, and injects additional functionality into the multimedia files it finds. While playing these infected multimedia files, Windows Media Player will access a malicious link on the Internet, which may in turn, result in more malware being downloaded.  Symantec Security Response has seen 400,000 AV pings over a few day period, which translates to an estimated rate of 200,000 to 1.6 million people impacted. Symantec Security Response believes the threat has reached its peak. 

We have updated our virus defintions to spot and neutralise this trojan. In addition, We have also created a removal tool to repair the infected multimedia files, which is available to customers online here. We have tracked more than 135,000 downloads of the fix tool to date.

All of which, is a useful reminder that when downloading multimedia files, you need to be careful. People are gradually, but it is slow progress, becoming vigilant when downloading files and application executables from web sites. However, what  Trojan.Brisv.A brings to the forefront is that even the ‘content’ can become compromised.

February 5, 2009 | Filed Under Uncategorized 

comments

Leave a Reply