PLC simulation-based industrial control intrusion detection method and intrusion detection system

An intrusion detection system and simulation technology, applied in general control systems, control/adjustment systems, instruments, etc., can solve problems such as incompatibility of antivirus software and inability of firewalls to prevent ICS attacks

Active Publication Date: 2016-07-27
BEIJING UNIV OF TECH +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the incompatibility of anti-virus software with some industrial applications, the firewall cannot prevent attacks from inside the ICS, and the IDS intrusion detection system has become our best choice to deal with APT attacks

Method used

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  • PLC simulation-based industrial control intrusion detection method and intrusion detection system
  • PLC simulation-based industrial control intrusion detection method and intrusion detection system
  • PLC simulation-based industrial control intrusion detection method and intrusion detection system

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings.

[0031] figure 1 It is a schematic structural diagram of the industrial control intrusion detection system based on sandbox simulation in the present invention, such as figure 1 shown, including:

[0032] The PLC simulation module is connected with the abnormal detection module of the control object and the detection module of the controlled object.

[0033] The input of the PLC simulation module includes the control program code of the controlled object based on the SCL language, the initialization configuration file, and the input and output data of the controlled object and the controlled object.

[0034] The PLC simulation module determines which control and controlled object data to obtain by loading the configuration file, and the communication subsystem communicates and reads the required data according to the set operating cycle...

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Abstract

The invention relates to a PLC simulation-based industrial control intrusion detection method and intrusion detection system. The system is composed of a PLC simulation module, a control object anomaly detection module and a controlled object anomaly detection module; the PLC simulation module is composed of a communication subsystem, an SCL language interpretation subsystem, an intermediate layer data cache subsystem and an execution engine subsystem; the communication subsystem is connected with an industrial control network; the execution engine subsystem is connected with the intermediate layer data cache subsystem; and the controlled object anomaly detection module is connected with the PLC simulation module. The intrusion detection system for a control object and a controlled object can be provided for a user under the premise that the structure of the industrial control network is not modified, and daily production is not affected, and therefore, the phenomena of false negatives and false positives are few, intrusion recognition is fast, and thus, the network security level of an industrial control system can be greatly improved with low cost.

Description

technical field [0001] The invention relates to the technical field of industrial control networks, in particular to an analysis method and an intrusion detection system for intrusion detection of an industrial control system based on SCL language programming of control logic. Background technique [0002] Industrial Control System (Industrial Control Systems, ICS) is composed of various automation control components and real-time data acquisition and monitoring process control components. It is an information system that mainly realizes data acquisition and processing, monitoring and control, remote communication and maintenance. With the continuous integration of industrialization and informatization, more and more information technologies have been applied to the field of industrial control. [0003] With the transformation of industrialization and automation towards networking and informatization, more and more industrial control systems adopt standard and general-purpos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 高一为周睿康赖英旭范科峰宋站威王宇盛姚相振龚洁中
Owner BEIJING UNIV OF TECH
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