Feeds

Trojans exploit Windows DRM loophole

Dirty tricks

  • alert
  • submit to reddit

The Power of One eBook: Top reasons to choose HP BladeSystem

Virus writers have subverted digital rights management features in Windows Media Player to spread Trojans and other malware. License-protected movie (.wmv) files infected with the WmvDownloader-A or WmvDownloader-B Trojans have entered circulation on P2P networks, reports Madrid-based antivirus firm Panda Software.

Normally when a user tries to play a protected Windows media file, and a valid license is not stored on a computer, the application will look for it on the internet, so that the user buy access to copyright-protected content. This new technology is incorporated in the latest Windows Media Player 10 update as well as XP SP2.

If the user runs a video file that is infected by one of the "DRM Trojans", they pretend to download the corresponding license from the net. In reality users are redirected to sites that take advantage of Windows vulnerabilities to download spyware, adware, premium-rate diallers and other viruses onto victim's machines.

The Trojans have been detected in video files with extremely variable names circulating across P2P networks such as KaZaA or eMule. File traders beware.

The video files infected by these Trojans have a .wmv extension and are protected by licenses, supposedly issued by the companies overpeer (in the case of WmvDownloader-A) or protected media (for WmvDownloader-B), Panda reports. Overpeer was previously hired by the recording industry to dump fake versions of songs on file sharing networks. Later it lobed pop-ups and adware at users. Loudeye - overpeer's parent company - told PC World last December that P2P users are getting what they deserve.

Whether overpeer has begun using more aggressive tactics is unclear, the evidence against it is circumstantial and it could be other parties have used its name as a convenient smokescreen. ®

Related stories

Firm gives P2P networks adware infection
Fizzer stealth worm spreads via KaZaA
P2P virus fakes nude Zeta Jones pics

Designing a Defense for Mobile Applications

More from The Register

next story
Secure microkernel that uses maths to be 'bug free' goes open source
Hacker-repelling, drone-protecting code will soon be yours to tweak as you see fit
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Roll out the welcome mat to hackers and crackers
Security chap pens guide to bug bounty programs that won't fail like Yahoo!'s
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
Researcher sat on critical IE bugs for THREE YEARS
VUPEN waited for Pwn2Own cash while IE's sandbox leaked
Four fake Google haxbots hit YOUR WEBSITE every day
Goog the perfect ruse to slip into SEO orfice
Putin: Crack Tor for me and I'll make you a MILLIONAIRE
Russian Interior Ministry offers big pile o' roubles for busting pro-privacy browser
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Seven Steps to Software Security
Seven practical steps you can begin to take today to secure your applications and prevent the damages a successful cyber-attack can cause.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.