Trojan horse is a remote control program based on " client / server " mode . after the trojan horse server running on user ' s pc , it can open a specifical port or connect with trojan horse client or do other actions “特洛伊木马” ,是一种基于“客户机服务器”模式的远程控制程序,它的服务器端程序在用户的计算机上运行后,可以打开特定的端口也可以与客户机交互或是执行特定命令等等。