Chinese Internet security provider Kingsoft has published a report on China's computer virus and Internet security situation in October 2009, stating that 3,031,921 new viruses were detected in mainland China during the month and 20,812,698 computers were affected by these viruses.

Kingsoft Duba, the anti-virus branch of Kingsoft, said that Microsoft published 53 system patches in October and the company has updated these patches synchronously for its users.

In addition, the number of websites affected by trojans was 1,244,286 in October 2009, maintaining the same level as the previous month.

Li Tiejun, an anti-virus engineer from Kingsoft Duba, told local media that identification-theft trojans targeting security keys for online games started to appear in October. Meanwhile, more binding trojans spread via both illegal and legal websites.