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Industrial communication protocol reverse analysis method

A protocol reverse, industrial communication technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as undisclosed, insufficient analysis depth of industrial control network data packets, and users unable to fully understand the content of industrial control network data packets, etc. The effect of good scalability

Inactive Publication Date: 2020-07-03
浙江木链物联网科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a method for reverse analysis of industrial communication protocols, which solves the problem of insufficient parsing depth of industrial control network data packets at present. Since most industrial control protocols belong to private protocols, and the protocol format is defined by the manufacturer and is not disclosed, users cannot fully understand the industrial control network data. package contents

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Embodiment 1

[0031] The invention provides a reverse analysis method of an industrial communication protocol, comprising: figure 1 It is a schematic diagram of an industrial communication protocol reverse analysis method provided in the embodiment of this application, as shown in figure 1 As shown, receive the data acquisition instruction, obtain the first data packet in the industrial control network data stream and obtain the data classification; receive the data packet reconstruction instruction, analyze the first data packet from bottom to top based on the OSI model, and obtain The second data packet: receiving the deep analysis instruction of the data packet, performing reverse analysis on the second data packet, and obtaining the protocol format.

[0032] It should be noted that, in the embodiment of the present invention, the first data packet may be understood as an original data packet; the second data packet is an application layer data packet. Regarding the first data packet an...

Embodiment 2

[0035]The invention provides a method for reverse analysis of industrial communication protocols, comprising: receiving a data acquisition instruction, obtaining the first data packet in the data flow of the industrial control network and obtaining data classification; receiving the data packet reconstruction instruction, and analyzing the first data packet based on the OSI model Analyzing the data packet from bottom to top to obtain the second data packet; receiving a deep analysis instruction of the data packet, performing reverse analysis on the second data packet to obtain the protocol format.

[0036] Preferably, receiving the data acquisition instruction, obtaining the first data packet in the data flow of the industrial control network and obtaining the data classification includes the following steps: receiving the data identification instruction, mainly checking the first data packet, and obtaining the required data type ; Receive the data acquisition part instruction,...

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Abstract

The invention provides an industrial communication protocol reverse analysis method, which comprises the steps of receiving a data acquisition instruction, acquiring a first data packet in an industrial control network data stream and obtaining a data classification; receiving a data packet reconstruction instruction, and analyzing the first data packet from bottom to top based on an OSI model toobtain a second data packet; receiving a data packet deep analysis instruction, and analyzing the private protocol and the public protocol according to the second data packet to obtain a protocol format, thereby solving the problem of insufficient analysis depth of the current industrial control network data packet, and since most industrial control protocols belong to the private protocol and theprotocol format is defined by a manufacturer and is not public, a user cannot comprehensively know the content in the industrial control network data packet.

Description

technical field [0001] The invention relates to the field of industrial control system network communication, in particular to a method for in-depth analysis of the contents of industrial control network data packets and binary reverse analysis of industrial control private protocols, which can be used to comprehensively understand the operation of the industrial control system from the bottom layer. Background technique [0002] Since the Stuxnet virus incident broke out in Iran in 2010, many major industrial control system network security incidents have occurred at home and abroad, which have greatly affected and damaged the stable operation of industrial control systems. The industrial control system is used to control various equipment on the industrial site to carry out collaborative production according to the process requirements, and is the core center of industrial production. Industrial control systems in service generally do not take into account the threat of ne...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L29/08
CPCH04L43/18H04L67/12
Inventor 朱奕辉陈昕伟雷濛郭宾
Owner 浙江木链物联网科技有限公司
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