随着计算机网络日益普及,网络上的病毒种类也越来越繁多,让上网的用户难以提防。本文所讨论的ARP病毒是以攻击网络通信设备为过程,以盗取用户信息为目的的一种病毒,同时针对它的表现进行了分析并提出一些防御措施。 With the increasing popularity of computer networks, more and more types of viruses on the network, so that users of the Internet is difficult to watch. The ARP virus discussed in this article is a virus that aims to steal user information by attacking network communication devices. At the same time, it analyzes its performance and proposes some defensive measures.