Method and device for extracting virus characteristics

An extraction device and virus technology, which are applied in the field of virus feature extraction methods and devices, can solve problems such as information redundancy in virus databases, and achieve the effects of reducing information redundancy, improving classification mechanisms, and improving accuracy and detection efficiency.

Active Publication Date: 2018-03-13
北京鸿享技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the defects in the prior art, the present invention provides a method and device for extracting virus features, which can solve the problem that the relatively fixed classification rules in the prior art can easily lead to the redundancy of information in the virus database

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  • Method and device for extracting virus characteristics
  • Method and device for extracting virus characteristics
  • Method and device for extracting virus characteristics

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Embodiment Construction

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0050] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the descri...

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Abstract

The invention provides a virus signature extraction method and apparatus. The method comprises the steps of: obtaining a plurality of virus samples; dividing the virus samples into at least one type, and enabling the similarity between signature values of any two virus samples belonging to the same type to be greater than or equal to a preset threshold value; and for each type, extracting common signature of all virus samples belonging to the type. According to the virus signature extraction method and apparatus, the problem in the prior art that relatively fixed classification rules very easily cause redundancy of information in a virus base can be solved, the redundancy of the information in the virus base is greatly reduced, a virus classification mechanism can be improved, and the virus detection accuracy and efficiency are improved.

Description

technical field [0001] The invention relates to the field of security technology, in particular to a virus feature extraction method and device. Background technique [0002] As a special data information, virus characteristics are the key to distinguish virus files, virus-infected files and normal files, and are usually recorded in the virus database. Almost all antivirus software needs to judge whether a file is a virus file and whether the file has been infected with a virus according to the virus characteristics recorded in the virus database. [0003] In the prior art, virus categories are usually classified according to general classification rules. For example, the prefix "Trojan" in a virus named "Trojan.Downloader-1420" indicates that the virus is a Trojan horse virus, and "Downloader-1420" is a distinguishing mark between this virus and other Trojan horse viruses. Based on relatively fixed classification rules, existing technologies can extract virus features for...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/56
CPCG06F21/561
Inventor 唐海陈卓杨康
Owner 北京鸿享技术服务有限公司
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