Patents by Inventor Yinhong CHANG

Yinhong CHANG 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).

  • Patent number: 11329952
    Abstract: A computer-implemented method for domain analysis comprises: obtaining, by a computing device, a domain; and inputting, by the computing device, the obtained domain to a trained detection model to determine if the obtained domain was generated by one or more domain generation algorithms. The detection model comprises a neural network model, a n-gram-based machine learning model, and an ensemble layer. Inputting the obtained domain to the detection model comprises inputting the obtained domain to each of the neural network model and the n-gram-based machine learning model. The neural network model and the n-gram-based machine learning model both output to the ensemble layer. The ensemble layer outputs a probability that the obtained domain was generated by the domain generation algorithms.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: May 10, 2022
    Assignee: Beijing DiDi Infinity Technology and Development Co., Ltd.
    Inventors: Tao Huang, Shuaiji Li, Yinhong Chang, Fangfang Zhang, Zhiwei Qin
  • Publication number: 20200351242
    Abstract: A computer-implemented method for domain analysis comprises: obtaining, by a computing device, a domain; and inputting, by the computing device, the obtained domain to a trained detection model to determine if the obtained domain was generated by one or more domain generation algorithms. The detection model comprises a neural network model, a n-gram-based machine learning model, and an ensemble layer. Inputting the obtained domain to the detection model comprises inputting the obtained domain to each of the neural network model and the n-gram-based machine learning model. The neural network model and the n-gram-based machine learning model both output to the ensemble layer. The ensemble layer outputs a probability that the obtained domain was generated by the domain generation algorithms.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Inventors: Tao HUANG, Shuaiji LI, Yinhong CHANG, Fangfang ZHANG, Zhiwei QIN
  • Patent number: 10764246
    Abstract: A computer-implemented method for domain analysis comprises: obtaining, by a computing device, a domain; and inputting, by the computing device, the obtained domain to a trained detection model to determine if the obtained domain was generated by one or more domain generation algorithms. The detection model comprises a neural network model, a n-gram-based machine learning model, and an ensemble layer. Inputting the obtained domain to the detection model comprises inputting the obtained domain to each of the neural network model and the n-gram-based machine learning model. The neural network model and the n-gram-based machine learning model both output to the ensemble layer. The ensemble layer outputs a probability that the obtained domain was generated by the domain generation algorithms.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: September 1, 2020
    Assignee: DiDi Research America, LLC
    Inventors: Tao Huang, Shuaiji Li, Yinhong Chang, Fangfang Zhang, Zhiwei Qin
  • Patent number: 10678916
    Abstract: Malicious programs may be detected by obtaining program information of a program. A control flow graph may be generated based on the program information. The program may be identified as being potentially malicious based on one or more portions of the control flow graph.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: June 9, 2020
    Assignee: DiDi Research America, LLC
    Inventor: Yinhong Chang
  • Patent number: 10671725
    Abstract: Malicious processes may be tracked by obtaining process history information of a computing device and obtaining an identification of a malicious software on the computing device. An associated process of the malicious software and actions of the associated process may be identified based on the process history information. Related processes of the associated process and actions of the related processes may be iteratively identified based on the process history information. Tracking information for the malicious software may be generated based on the associated process, the actions of the associated process, the related processes, and the actions of the related processes.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: June 2, 2020
    Assignee: DiDi Research America, LLC
    Inventor: Yinhong Chang
  • Publication number: 20200059451
    Abstract: A computer-implemented method for domain analysis comprises: obtaining, by a computing device, a domain; and inputting, by the computing device, the obtained domain to a trained detection model to determine if the obtained domain was generated by one or more domain generation algorithms. The detection model comprises a neural network model, a n-gram-based machine learning model, and an ensemble layer. Inputting the obtained domain to the detection model comprises inputting the obtained domain to each of the neural network model and the n-gram-based machine learning model. The neural network model and the n-gram-based machine learning model both output to the ensemble layer. The ensemble layer outputs a probability that the obtained domain was generated by the domain generation algorithms.
    Type: Application
    Filed: December 14, 2018
    Publication date: February 20, 2020
    Inventors: Tao HUANG, Shuaiji LI, Yinhong CHANG, Fangfang ZHANG, Zhiwei QIN
  • Publication number: 20190294788
    Abstract: Malicious processes may be tracked by obtaining process history information of a computing device and obtaining an identification of a malicious software on the computing device. An associated process of the malicious software and actions of the associated process may be identified based on the process history information. Related processes of the associated process and actions of the related processes may be iteratively identified based on the process history information. Tracking information for the malicious software may be generated based on the associated process, the actions of the associated process, the related processes, and the actions of the related processes.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 26, 2019
    Inventor: Yinhong CHANG
  • Publication number: 20190294790
    Abstract: Malicious programs may be detected by obtaining program information of a program. A control flow graph may be generated based on the program information. The program may be identified as being potentially malicious based on one or more portions of the control flow graph.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 26, 2019
    Inventor: Yinhong CHANG