Research on Communication Techniques for Port Recall Trojan Horse
Yuan Yuan · Microelectronics & Computer · 2006
The Port Recall Trojan Horse(PRTH) is a new kind of Trojan Horse(TH). It can pass through not only the firewall of LAN, but also intrude the intranet hosts without public network IP address. This kind of TH has caused the great harm to computer networks. In this paper, communication techniques between traditional TH and the PRTH are compared, and the advantages of PRTH communication are pointed out. Two typical communication connection methods, semi-recall connection mode and full-recall connection mode, are also studied. Finally, a prototype PRTH is designed to validate the port recall communication connection.