Yup. China is currently the largest culprit here, having millions of infected PCs. South Korea comes in a close second, due to their superfast internet and "cyber cafe" culture where cheap PCs are set up to be rented out to play games on, and they're usually quite infected.
MS should just cut of Chinese data transmission the second they see the rise in data traffic from China ;-)
Bad for the 3% Chinese xbox users but the other 97% of xbox users around the world would not see a problem.
But probably it will not be that easy
