Title:
FILE IDENTIFICATION METHOD AND FEATURE EXTRACTION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/201295
Kind Code:
A1
Abstract:
A file identification method and a feature extraction method. The file identification method comprises: obtaining a file to be identified (101); determining, according to a preset reading rule and a preset phrase model, multiple strings corresponding to the file to be identified (102); constructing a transition matrix according to the multiple strings, wherein elements in the transition matrix have one-to-one correspondence to the types of the strings; determining, according to the elements in the transition matrix, target image data corresponding to the file to be identified (104); and extracting a feature of the target image data, and determining whether the file to be identified is a malicious file according to the feature of the target image data (105).
Inventors:
GU CHENGJIE (CN)
Application Number:
PCT/CN2019/083200
Publication Date:
October 24, 2019
Filing Date:
April 18, 2019
Export Citation:
Assignee:
NEW H3C SECURITY TECH CO LTD (CN)
International Classes:
G06K9/62; G06F21/56
Foreign References:
| CN107392019A | 2017-11-24 | |||
| CN101046858A | 2007-10-03 | |||
| CN104216875A | 2014-12-17 |
Attorney, Agent or Firm:
PATENTSINO IP FIRM (CN)
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