McDonald’s recently launched a promo in Japan that gave away 10,000 McMP3 Players loaded with 10 pre-loaded songs. What else was pre-loaded? Why, only a little Trojan horse, the QQPass Trojan horse, to be exact. QQPass grabs your passwords and other personal information and then emails the details to the author of the program. Awesome. McDonald’s says only a “portion” of the MP3 Players have the malware on them, but they’ve set up a site to take care of the problem, anyway.

McMP3 Players With Malware [Impress via Engadget]