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Chinese domain name similarity calculation method and counterfeit domain name detection method

A technology of similarity calculation and Chinese domain name, applied in the field of network security

Active Publication Date: 2017-02-01
INST OF INFORMATION ENG CAS
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Problems solved by technology

This method can effectively identify counterfeit domain names constructed using near-characters, but if the attacker swaps the sequence of characters in the domain name on the basis of using near-characters, the above detection method will no longer be applicable

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  • Chinese domain name similarity calculation method and counterfeit domain name detection method
  • Chinese domain name similarity calculation method and counterfeit domain name detection method
  • Chinese domain name similarity calculation method and counterfeit domain name detection method

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Embodiment Construction

[0041] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples. The following implementation examples are used to illustrate the present invention, but do not limit the scope of the present invention.

[0042] The invention mainly aims at calculating the similarity between the counterfeit domain name and the target domain name for the counterfeit domain name in Chinese constructed by using near-word replacement and word order exchange.

[0043] Such as figure 1 , the present invention includes a domain name preprocessing module 10, a similar character pair construction module 20, a single word similarity calculation module 30 and an overall domain name similarity calculation module 40.

[0044] The input of the domain name preprocessing module 10 is the domain name to be tested and the target domain name, and the output is the Chinese character set Set corr...

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Abstract

The invention discloses a Chinese domain name similarity calculation method and a counterfeit domain name detection method. The method comprises the following steps: (1) respectively generating Chinese character sets set 1 and set 2 of a domain name to be detected d1 and a target domain name d2; (2) determining a value of a mark flag according to a comparison result of the numbers of Chinese characters in the sets set 1 and set 2, and determining the similarities of n groups of similar character pairs included in the sets set 1 and set 2 and each group of similar character pairs; and (3) calculating the overall similarity value of the domain name d1 and the domain name d2 according to an influence value of conversion of Chinese characters with similar forms on the domain name to be detected d1 and the target domain name d2 and an influence value of word order exchange on the domain name to be detected d1 and the target domain name d2. If the overall similarity value is greater than a set threshold value, the domain name d1 is judged to be a counterfeit domain name of the domain name d2. The Chinese domain name similarity calculation method can effectively detect a Chinese counterfeit domain name based on replacement of Chinese character with similar forms and word order exchange, and has wide application prospects in the field of network security.

Description

technical field [0001] The invention belongs to the technical field of network security, and in particular relates to a method for calculating the similarity of Chinese domain names and a method for detecting counterfeit domain names. Background technique [0002] Chinese domain names are an important part of internationalized domain names, and domain name phishing attacks against Chinese domain names are increasing day by day, and domain name phishing forms are becoming more and more complex. The rules of Chinese character creation make it produce a large number of similar characters, and because of people's reading inertia, a certain degree of word order disorder does not affect the overall visual effect. [0003] Traditional domain name detection technology is only suitable for English domain names with relatively simple character system, and cannot effectively detect Chinese domain names with a large character library and complex fonts. Currently, research in this field ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/12G06F17/27G06K9/62
CPCH04L63/1483H04L63/1491G06F40/279H04L61/4511G06F18/22
Inventor 王利明李丹
Owner INST OF INFORMATION ENG CAS
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