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Method and device for determining type of file

A technology for determining methods and file types, applied in the computer field, can solve problems such as low efficiency and poor processing accuracy, and achieve the effects of improving efficiency, avoiding lag and inaccuracy, and making extraction and comparison easy

Inactive Publication Date: 2013-01-09
BEIJING QIHOO TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of poor processing accuracy and low efficiency when determining the file type in the related art, the present invention proposes a method and device for determining the file type, which can determine the type of the file according to the attribute characteristics of the file to be determined

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  • Method and device for determining type of file
  • Method and device for determining type of file

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0033] According to an embodiment of the present invention, a method for determining a file type is provided.

[0034] Such as figure 1 As shown, the method for determining the file type according to the embodiment of the present invention includes:

[0035] Step S101, extracting attribute feature information of the file to be determined;

[0036] Step S103, comparing the extracted attribute feature information with the attribute feature information corresponding to each type of file pre-st...

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Abstract

The invention discloses a method and a device for determining the type of a file. The method comprises the following steps of: extracting the attribute characteristic information of a file to be determined; comparing the extracted attribute characteristic information with attribute characteristic information which is pre-stored in a rule set and corresponds to files of each type; and determining a type corresponding to attribute characteristic information in line with the attribute characteristic information of the file to be determined in the rule set as the type of the file to be determined. The attribute characteristic information of the file to be determined is extracted, and is compared with the attribute characteristic information which is pre-stored in the rule set and corresponds to the files of each type, and the type corresponding to the attribute characteristic information in line with the attribute characteristic information of the file to be determined in the rule set is determined as the type of the file to be determined, so that the type of the file can be determined according to the attribute characteristic information of the file to be determined.

Description

technical field [0001] The present invention relates to the computer field, and in particular, relates to a method and device for determining a file type. Background technique [0002] In recent years, the number of malicious programs worldwide has grown geometrically. Based on this explosive growth rate, the generation and update of the signature database used to detect and kill malicious programs often lags behind. That is to say, the signature database The addition of signature codes of malicious programs cannot keep up with the endless stream of unknown malicious programs. [0003] With the application of anti-killing technology by malicious program creators, methods of packing malicious programs or modifying the signatures of malicious programs have appeared; in addition, many current Trojan horse programs use more and more frequent and rapid automatic transformations. . Therefore, the above-mentioned processing of malicious programs will make it more and more difficu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 金正虎陈添梁志文
Owner BEIJING QIHOO TECH CO LTD
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