Design And Implementation Of Intranet's Security Auditing And Supervision System

With the development of computer network, the current network security becomes more critical than ever, the safeguard of the network security, especially the intranet's security, has become a focal problem to the enterprise and the organization. However, the current security technology pays more attention to the prevention of outside intrusion, and the behavior of insiders is less considered, the security audit and supervision system can record and inspect the intranet events, guard and discovery intranet's contrary operation effectivelly. Therefore, the research network security audit and the supervision technology have important practical significance.On the base of developing actual project work, specially focus on intranet's security audit, firstly, the article has analyzed the network security present situation. secondly, the related technology of the safe audit has studied, in view of its existence deficiency, the article has thoroughly studied the intranet's network behavior safe auditing and supervising, the article proposed Windows intranet's safe synthesis audit supervising and managing technology based on the system API replacing, Monitor code has compiled a DLL , pour DLL into the goal process DLL and then, used of API Hook function, realize audit and supervision to the Intranet's behavioral through replacing systematic API. Then,The article has given detail elaboration of the system function request, the logical organization, the correspondence agreement, the main function module realization principle and the method to achieve,the implementation about process monitor ,printer monitorand host montor. Finally, the article introduced the test, the users'feedback, and the national correlation authentication test result of the intranet's safe synthesis audit supervising and managing system.The test and the application of the system by the national related security agency proves that the system to have the very good stability and healthy, but, further thoroughly study on the intranet's webmaster's machine mail and virus's audit is needed.