Patents by Inventor Ui Jung CHUNG

Ui Jung CHUNG 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: 12013938
    Abstract: An apparatus for generating a signature that reflects the similarity of a malware detection and classification system of the present invention includes a pre-processing unit configured to generate an input vector from input information, a classification unit configured to calculate a latent vector which indicates the similarity between at least one malware classification and the input vector by performing a plurality of computations to which learned weights of a plurality of layers are applied on the input vector through a deep neural network model, and a signature generation unit configured to generate a signature of the malware in a form of a binary vector by quantizing the latent vector.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: June 18, 2024
    Assignee: ESTSECURITY CORP.
    Inventors: Ui Jung Chung, Won Kyung Lee, Hyeong Jin Byeon
  • Patent number: 11675903
    Abstract: Provides an apparatus for detecting variants of malicious code based on neural network learning, a method therefor and a computer readable recording medium storing a program for performing the method. According to the present invention, one-dimensional binary data is converted into two-dimensional data without separate extraction of features, and deep learning is performed through a neural network having a nonlinear multilayered structure, such that the features of the malicious code and variants thereof may be extracted by performing the deep learning. Therefore, since no separate feature extraction or artificial effort by an expert is required, an analysis time is reduced, and variants of malicious code that cannot be captured by existing malicious code classification tools may be detected by performing the deep learning.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: June 13, 2023
    Assignee: ESTsecurity Corp.
    Inventors: Ui Jung Chung, Won Kyung Lee, Hyeong Jin Byeon
  • Publication number: 20220207141
    Abstract: An apparatus for generating a signature that reflects the similarity of a malware detection and classification system of the present invention includes a pre-processing unit configured to generate an input vector from input information, a classification unit configured to calculate a latent vector which indicates the similarity between at least one malware classification and the input vector by performing a plurality of computations to which learned weights of a plurality of layers are applied on the input vector through a deep neural network model, and a signature generation unit configured to generate a signature of the malware in a form of a binary vector by quantizing the latent vector.
    Type: Application
    Filed: December 30, 2021
    Publication date: June 30, 2022
    Inventors: Ui Jung CHUNG, Won Kyung LEE, Hyeong Jin BYEON
  • Publication number: 20190163904
    Abstract: Provides an apparatus for detecting variants of malicious code based on neural network learning, a method therefor and a computer readable recording medium storing a program for performing the method. According to the present invention, one-dimensional binary data is converted into two-dimensional data without separate extraction of features, and deep learning is performed through a neural network having a nonlinear multilayered structure, such that the features of the malicious code and variants thereof may be extracted by performing the deep learning. Therefore, since no separate feature extraction or artificial effort by an expert is required, an analysis time is reduced, and variants of malicious code that cannot be captured by existing malicious code classification tools may be detected by performing the deep learning.
    Type: Application
    Filed: May 24, 2018
    Publication date: May 30, 2019
    Inventors: Ui Jung CHUNG, Won Kyung LEE, Hyeong Jin BYEON