近年来,木马、后门等病毒大为泛滥,2006年上半年的《瑞星安全报告》指出,中国大陆地区针对网络游戏、聊天软件的木马数量相比去年爆增了5倍,达到90421个,占到总病毒数量的75.7%。国外反病毒机构则认为,目前中国大陆地区出现的新木马病毒数量,超过全球总数的30%还多,中国已经成 In recent years, viruses such as Trojans and backdoors have become extremely rampant. In the first half of 2006, the “Rising Security Report” pointed out that the number of Trojans in mainland China targeting online games and chat software jumped 5 times over last year to 90,421, accounting for To 75.7% of the total number of viruses. Foreign anti-virus agencies believe that the current number of new Trojan viruses in mainland China more than 30% of the total number of more than the world, China has become