File virus scanning device and method

A virus scanning and file technology, applied in the field of information security, can solve the problems of lack of virus file alarm function, long time of virus file, low efficiency, etc., and achieve the effect of reducing the time of determining virus files, improving alarm function, and improving efficiency

Inactive Publication Date: 2014-12-24
TIANJIN SHUDU SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the prior art is that the file to be scanned needs to be decompiled, and it takes a long time to determine the virus file. At the same time, a large amount of memory is occupied, so the efficiency is not high and the function of alarming the virus file is lacking.

Method used

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  • File virus scanning device and method
  • File virus scanning device and method

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Embodiment Construction

[0022] The best embodiment of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] figure 1 It is a structural schematic diagram of the file virus scanning device described in the present invention. like figure 1 shown.

[0024] A file virus scanning device, comprising:

[0025] Attribute acquisition module 101, for obtaining the attribute information of the file to be scanned according to the file offset address of the virus signature code;

[0026] A judging module 102, configured to determine that the scanned file is a virus file when the virus signature matches the attribute information acquired by the attribute acquiring module;

[0027] The alarm module 103 is configured to store virus files and issue alarms.

[0028] Preferably, it also includes:

[0029] The reading module is configured to read the file to be scanned from the disk, and save the file to be scanned to the cache.

[0030] figure 2...

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Abstract

The invention discloses a file virus scanning device and method. The file virus scanning device mainly comprises an attribute acquisition module, a judgment module and an alarm module, wherein the attribute acquisition module is used for acquiring attribute information of a file to be scanned according to a file offset address of a virus signature, the judgment module is used for determining that the scanned file is a virus file when the virus signature is matched with the attribute information acquired by the attribute acquisition module, and the alarm module is used for storing the virus file and giving an alarm. Decompiling for the file to be scanned is omitted, time for determining the virus file is effectively shortened, large occupation of a memory is avoided, efficiency is improved, and the alarm function for the virus file is achieved.

Description

technical field [0001] The invention relates to the field of information security, in particular to a file virus scanning device and method. Background technique [0002] Any antivirus software judges whether a file is a virus or has been infected with a virus according to the characteristics of the virus, and the characteristics of these viruses will be recorded in a file, which is the virus database. [0003] The virus database records various "appearance characteristics" of computer viruses. Sometimes we also call the data in the virus database "virus signature information" or "virus signature file". In other words, a virus database is a database in which virus signatures are recorded. Anti-virus software can judge whether the detected content is a virus file or a normal file by comparing the content to be detected with the "virus characteristic information" in the virus database. [0004] The disadvantages of the prior art are that the file to be scanned needs to be de...

Claims

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Application Information

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IPC IPC(8): G06F21/56
CPCG06F21/562
Inventor 王发勇张志军陈艳芳樊春明
Owner TIANJIN SHUDU SCI & TECH
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