网络安全是信息社会发展的重要保证.在校园网络中,很多学生由于好奇盗用网络资源,登陆非法网站,以致垃圾邮件、网络病毒在校内传播.甚至还有学生攻击学校重要部门的计算机等,这些都对校园网的安全运行提出严峻的考验。对校园内网安全审计系统的关键功能的实现进行讨论,采用API钩子和GINA等技术实现Windows下的审计数据获取。 Cybersecurity is an important guarantee for the development of the information society, in which many students curiously steal network resources and log onto illegal websites, causing spam and network viruses to spread in schools. There are even students attacking computers in key school departments, etc. All pose a severe test of the safe operation of the campus network. This paper discusses the realization of the key functions of campus network security audit system and adopts the API hook and GINA technology to achieve the audit data acquisition under Windows.