A system and method for preventing illegal outreach of local area network computers

Abstract

The present invention relates to the technical field of computer security, in particular to a method for preventing illegal outreach of a local area network computer. The method is as follows: a control unit sends an identity verification request to a server; the server configures a monitoring strategy and a protection strategy according to the identity verification request, and Send it to the control unit of the application program layer; the control unit of the application program layer sends the monitoring strategy and the protection strategy to the monitoring unit and the protection unit respectively; the monitoring center unit calls the monitoring strategy of the monitoring unit to load it into the target list. The target list is arranged in order according to the probability of triggering the protection unit; the file drive unit traverses according to the target list and intercepts the messages matching the target unit and the target list; the intercepted messages are processed by the protection unit as deadline. The invention utilizes the monitoring and protection strategy, utilizes the protection unit to intercept the system process and executes the corresponding protection strategy, so as to prevent the illegal outreach of the local area network computer.

Description

technical field [0001] The invention relates to the technical field of computer security, in particular to a system and method for preventing illegal outreach of local area network computers. Background technique [0002] At present, some internal networks with high security, such as those of government departments and military departments, often adopt the method of implementing physical isolation from external networks, such as the Internet, to ensure the security of their networks. Physical isolation ensures that there is no possible physical link between the external network and the internal network, cutting off the channel for information leakage. But the fact is just the opposite. Due to the imperfect management system or the lack of effective terminal monitoring technology, individual users in the internal network use telephone dial-up, plug-and-play Internet access equipment, and connect to the Internet for private operations, and the physical isolation environment is...

AI Technical Summary

Problems solved by technology

[0004] Illegal outreach creates a hidden channel between the original closed system environment and the external network, and the internal network will face various security threats such as viruses, Trojan horses, unauthorized access, data eavesdropping, and brute-force cracking, resulting in information such as network structure, server deployment, and security protection measures. Leaked, even cross-security domain, cross-network damage

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