Patents by Inventor Yuanfen WU

Yuanfen WU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for fast and intelligent comparison and security detection of mobile malware big data
    Patent number: 11334669
    Abstract: A method for detecting mobile malware, including step S1: compressing a mobile software subject to detection and a primary mobile software each containing N functions, wherein each of the functions is compressed into a hash value, a description entropy and a compressed string; S2: calculating a quantity of identical functions between the mobile software subject to detection and the primary mobile software; and then finding out a quantity of similar functions using Hdsim method or entropy_descpt_sim method; and then calculating a degree of similarity to obtain a value of similarity; S3: comparing the value of similarity with a predetermined threshold value; if the value of similarity is greater then or equal to the predetermined threshold value, the mobile software subject to detection is suspected to repackaging; if the value of similarity is smaller than the predetermined threshold value, the mobile software subject to detection is not suspected to repackaging.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 17, 2022
    Inventors: Quanlong Guan, Weiqi Luo, Huanming Zhang, Zhefu Li, Lin Cui, Yuanfen Wu
  • A METHOD FOR FAST AND INTELLIGENT COMPARISON AND SECURITY DETECTION OF MOBILE MALWARE BIG DATA
    Publication number: 20200410095
    Abstract: A method for detecting mobile malware, including step S1: compressing a mobile software subject to detection and a primary mobile software each containing N functions, wherein each of the functions is compressed into a hash value, a description entropy and a compressed string; S2: calculating a quantity of identical functions between the mobile software subject to detection and the primary mobile software; and then finding out a quantity of similar functions using Hdsim method or entropy_descpt_sim method; and then calculating a degree of similarity to obtain a value of similarity; S3: comparing the value of similarity with a predetermined threshold value; if the value of similarity is greater then or equal to the predetermined threshold value, the mobile software subject to detection is suspected to repackaging; if the value of similarity is smaller than the redetermined threshold value, the mobile software subject to detection is not suspected to repackaging.
    Type: Application
    Filed: March 29, 2019
    Publication date: December 31, 2020
    Inventors: Quanlong GUAN, Weiqi LUO, Huanming ZHANG, Zhefu LI, Lin CUI, Yuanfen WU