关键词：通信；木马；通信模型；P2P；内网穿透
摘 要：Direct connection and reflective connection are commonly used in traditional Trojan's communication model,which have some significant deficiencies in hiding,anti-tracking,and efficiency.To improve the aspects above in traditional Trojan horse communication model,the author proposed a hybrid communication model based on P2P technology.The model uses P2P intranet penetration protocol to build the channel between the controlled station and the control station,and uses P2P node servers for saving the Trojan's status and transferring some data between the controlled and the control.The topology of networks for controller will be very flexible.Using the IP traceback technology will be difficult to track the controllers.Using UDP protocol in the hybrid communication model for data transmission will hide the network status.Control sites can work in distributed mode.By using the model,the hiding-ability,anti-traceability and communication efficiency will be greatly improved.