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An opc protocol security protection method that intelligently learns and presets read-only whitelist rules

A technology of intelligent learning and protocol security, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve problems such as insecurity in industrial sites, and achieve the effect of learning process protection

Active Publication Date: 2021-05-25
北京威努特技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the learning process, some malicious operations will be learned, and the rules generated through learning are not safe for industrial sites

Method used

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  • An opc protocol security protection method that intelligently learns and presets read-only whitelist rules
  • An opc protocol security protection method that intelligently learns and presets read-only whitelist rules
  • An opc protocol security protection method that intelligently learns and presets read-only whitelist rules

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Embodiment Construction

[0035] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. like figure 1 Shown, method of the present invention comprises the following steps:

[0036] Step 1, capturing network messages: capture all messages passing through the monitoring and protection equipment; the monitoring and protection equipment refers to equipment that adopts a general hardware platform, and the general hardware platform includes: using ARM, X86 / Atom, MIPS, PowerPC system The hardware platform of the structure; the monitoring protection device can capture data packets and control the data packets based on the security rules and white list rules deployed by the administrator; the white list or white list rules in the present invention refer to a data definition list, Carry out network message inspection based on the data definition list, the content of the message conforms to the passage of the data definition list, and those that do n...

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PUM

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Abstract

The invention discloses an OPC protocol security protection method for intelligently learning and presetting read-only whitelist rules, comprising the following steps: Step 1, capturing network messages; Step 2, analyzing and processing basic messages; Step 3, analyzing and processing in-depth protocols; Step 4, business processing, step 5, generation of whitelist rules: step 6, read-only whitelist rules, and step 7, run the monitoring and protection equipment in the alarm mode. Step 8, change the monitoring and protection equipment to the operating mode, step 9, transmit the data deeply analyzed by the OPC protocol, and step 10, receive the message record information uploaded by the monitoring and protection equipment to learn, the superior effect of the present invention is: not only can identify the The OPC protocol on the TCP protocol can also monitor and protect the OPC protocol based on the UDP protocol. For industrial sites with only collection actions, the preset read-only rules can be directly used and the complicated learning process can be omitted.

Description

technical field [0001] The invention relates to an OPC protocol safety protection method for intelligent learning and preset read-only white list rules, and belongs to the technical field of automatic control. Background technique [0002] At present, the OPC protocol has become an international standard. The OPC protocol is based on Windows' COM (Component Object Model, Component Object Model) technology and DCOM (Distribute Component Object Model, Distributed Component Object Model) technology. It is the abbreviation of OLE for Process Control. The role of the OPC protocol is to provide a set of standard interfaces for automation software developers, that is, there is no need to care about how the server collects and writes data from devices of different hardware manufacturers, and only needs to make corresponding calls according to the interfaces provided by OPC , the system will automatically complete the actual collection and writing actions and get corresponding feedba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L12/26
CPCH04L43/026H04L43/04H04L43/18H04L69/22
Inventor 冯全宝
Owner 北京威努特技术有限公司
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