Design of Security Defense Mechanism for Worm Virus Attacks in Power Information Networks

Smart grid is inseparable from digitization, informatization, and intelligence, and it is even more inseparable from digitization, informatization, and intelligence security. Attacks on the network are becoming more complex, unpredictable, and difficult to effectively control. Worm attack is a relatively effective and well-known network attack method. How to detect and block worm attack in time is one of the important propositions of network security. At present, many researchers have devoted themselves to the solution of worm attacks, and it is necessary to briefly summarize the existing research on worm defense. First of all, this paper introduces the characteristics, action mechanism and life cycle of worm attacks, and focuses on artificial intelligence technology and existing worm detection methods. Secondly, this paper proposes a network security defense mechanism combining global and local. Finally, this paper summarizes the content of this paper and discusses some current problems in the field of network intrusion detection.