From “Report: China’s botnet problems grows” (SecurityFocus: 21 April 2008):
Computers infected by Trojan horse programs and bot software are the greatest threat to China’s portion of the Internet, with compromises growing more than 20-fold in the past year, the nation’s Computer Emergency Response Team (CN-CERT) stated in its 2007 annual report released last week.
The response organization found that the number of Chinese Internet addresses with one or more infected systems increased by a factor of 22 in 2007. The report, currently only published in Chinese, estimates that, of 6.23 million bot-infected computers on the Internet, about 3.62 million are in China’s address space.