摘要 从木马程序的隐藏技术、自动加载技术和通讯技术 3个方面进行了详细的技术分析 ,总结出木马程序的一般设计原理 .在隐藏技术中着重阐述了任务栏隐藏、任务管理器隐藏、进程隐藏和端口隐藏等技术 .在自动加载技术中分析了如何通过修改注册表来实现木马程序的自动运行 ,并分析了木马的客户服务器模式通讯技术 . The essay analysis some design methods of wood horse, such as hiding, autorun and communication. Then the conclusion on the common methods of designing a wood horse program is drawn. The hiding methods include hiding taskbar, hiding interface and so on. The autorun methods include changing the register table. The communication include client/server methods.