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A method and device for risk detection of usb device access based on distributed accounting

A technology for equipment access and risk detection, applied in the nuclear power and electric power fields, it can solve the problems of difficult centralized management and correlation analysis, and inability to accurately analyze the attack entrance, and achieve the effect of providing reliability and ensuring anti-tampering.

Active Publication Date: 2021-11-30
中广核工程有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual network attacks, hackers often tamper or delete related USB device access logs after intruding through access to USB devices, erasing traces of intrusion and destruction, resulting in the inability to accurately analyze the attack entry
[0003] In addition, for different devices in the business system, the recording formats for USB device access logs in different systems are different, and it is difficult to perform centralized management and correlation analysis through a simple centralized method

Method used

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  • A method and device for risk detection of usb device access based on distributed accounting
  • A method and device for risk detection of usb device access based on distributed accounting

Examples

Experimental program
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Effect test

Embodiment 1

[0041] The embodiment of the present invention provides a USB device access risk detection method based on distributed accounting, see figure 1 , the method includes:

[0042] S1. When a USB device is connected, identify the record information of the USB device connected;

[0043] S2. Store the record information locally, and store it in a different place synchronously;

[0044] S3. Perform risk detection on the connected USB device according to the recorded information and the device authorization table; the device authorization table is pre-stored locally and synchronously stored in a different place.

[0045] It should be noted that when the business systems in power systems and nuclear power industry substations and their power plants are connected to USB devices due to functional requirements such as system upgrades and business data transfers, the record information for identifying the USB device access, the record The information is generally an access log of the USB ...

Embodiment 2

[0064] An embodiment of the present invention provides a USB device access risk detection device based on distributed accounting, which can realize all the processes of the above-mentioned USB device access risk detection method based on distributed accounting, see figure 2 , the device includes a USB device access detection recording module 1, a local distributed accounting storage module 2, a USB device access analysis module 3 and a distributed accounting data synchronization module 4:

[0065] The USB device access detection recording module 1 is used to identify the record information of the USB device access when the USB device is connected, and send the record information of the USB device to the local distributed accounting storage module 2;

[0066] The local distributed accounting storage module 2 is used to store the record information of the USB device, the preset device authorization table and the information synchronized by the distributed accounting data synchr...

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PUM

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Abstract

The invention discloses a USB device access risk detection method based on distributed accounting, including: when a USB device is connected, identifying the record information of the USB device access; Synchronously stored in a different place; according to the record information and the device authorization table, risk detection is performed on the connected USB device; the device authorization table is pre-stored locally and synchronously stored in a different place. The invention also discloses a USB device access risk detection device based on distributed accounting. The invention can manage data in a decentralized storage mode, effectively guarantee data tamper-proof, and provide disaster-prevention backup reliability.

Description

technical field [0001] The invention relates to the technical fields of nuclear power and electric power, in particular to a method and device for detecting risk of USB device access based on distributed accounting. Background technique [0002] In electric power systems and nuclear power industry substations and power plants, due to system upgrades, business data transmission and other functional requirements in the business system, USB devices need to be used for access, and USB devices are often used as attack media by attackers. USB devices attack and destroy the system. In actual network attacks, hackers often tamper or delete related USB device access logs after intruding through access to USB devices, erasing traces of intrusion and destruction, resulting in the inability to accurately analyze the attack entry. [0003] In addition, for different devices in the business system, the recording formats for USB device access logs in different systems are different, and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14G06F21/85
CPCG06F11/1458G06F21/85
Inventor 张林崔岗春增军谭胜盛张百舸李光达荆俊强颜振宇潘毓航方勇卜哲魏亮谢玮许子先廖璇崔涛孔令飞
Owner 中广核工程有限公司