February 3, 2006 5:34 PM PST

Spyware tunnels in on Winamp flaw

A security bug in Winamp is being exploited by miscreants to install spyware on machines running the media player software, experts have warned.

Earlier this week, security companies warned that attack code for exploiting the flaw was circulating on the Internet. On Thursday, Sunbelt Software said it had found a Web site hosting a malicious Winamp playlist file. Opening the file loads spyware onto an unwitting user's PC, it said.

"After surfing to a malicious Web site on our test machines, the file 'x.pls' begins to download," Sunbelt's Adam Thomas wrote in a posting on the anti-spyware software maker's corporate blog. "Almost immediately, Winamp starts to execute the play list and remote code execution begins."

The flaw was disclosed on Monday, when Winamp maker Nullsoft, a division of America Online, released an update to fix it. The company posted version 5.13 of Winamp, while Secunia and other security companies issued alerts about the problem. Secunia rated the issue "extremely critical," its highest rating.

"Not following the recommendation from Nullsoft to upgrade to version 5.13 could result in the extremely nasty CWS Looking-For.Home Search Assistant infection as well as an installation of our good friend SpySheriff," Thomas wrote. Antivirus software is not yet detecting this exploit, he wrote.

Home Search Assistant might monitor a user's activity and send out confidential information to its creator, according to Sunbelt's threat database. SpySheriff will display a false warning that the computer is infected with spyware. It then tries to persuade the user to buy a SpySheriff product, according to Sunbelt.

Distributors of adware and spyware often exploit security vulnerabilities in programs to get their applications onto PCs. Makers of such software often pay distributors per installation of the adware or spyware.

The Winamp problem affects version 5.12 of the media player. Earlier versions may also be affected. On Friday, the malicious Web site referred to by Sunbelt, 008k.com, appeared to be offline. The site displayed a message: "Site is closed for abuses."

See more CNET content tagged:
Sunbelt Software, Winamp, NullSoft, security bug, flaw

3 comments

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bloat ware... now spyware....
I like XMMS....

this is not a rant
Posted by freq (121 comments )
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XMMS is a Winamp wanabee!
Your right though, since AOL touched Winamp with it's evil they've turned it into a nearly useless, ram sucking, bloatware, security problem.
Get your older version here!
<a class="jive-link-external" href="http://www.oldversion.com/" target="_newWindow">http://www.oldversion.com/</a>
Posted by Muddleme (99 comments )
Link Flag
It is important to note:
Don't believe a home page by it's cover. For as long as I can remember, the front page for 008k.com has read "Site is closed for abuses".

So, it is important to note that 008k.com is still actively being used to facilitate the distribution of malware.
Posted by adamt56 (1 comment )
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