the high speed development of Internet technology，and the rapid emergence of new technologies has brought unprecedented change to the modern society. Extensive use of cloud technology，mobile Internet penetration in explosive growth，but also brought a lot of unknown security threats. In 2015 Network Security in the form of very serious，new network attack techniques and Trojan virus，has gone beyond the traditional means of attack，myriad forms，it is difficult to preparedness，network doubling the number of attacks，a lot of sensitive data leakage. Existing anti-virus software，defensive approach to the use of 0day custom Trojan virus and network attack techniques helpless. Mobile Internet security status quo is worrying.