China’s anti-virus authorities on Sunday warned computer users to guard against mutation of Hack_Kido computer virus, which could prevent users from downloading operation system loophole patches. The virus would monitor the users’ on-line browsing and close any web-site related with the Microsoft, preventing users from getting any help from the Microsoft web-sites, according to the Tianjin-based National Computer Virus Emergency Response Center. http://news.xinhuanet.com/english/2009-10/25/content_12322160.htm?