Patents by Inventor Gyu Kweon Han

Gyu Kweon Han 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).

  • Malignant BOT confrontation method and its system
    Patent number: 8112804
    Abstract: A method for dealing with attacks of malicious BOTs in a network security system includes detecting and analyzing a domain name receiving excessive DNS queries to judge the infection of a malicious BOT, registering the corresponding domain name as normal or abnormal management target, and redirecting an abnormal DNS query for the abnormal management target to a redirection processing & response system. Thereby, the automatic detection of malicious BOT attacks and the mechanism which performs the measures and the analysis simultaneously can protect the DNS servers and prevent the security accidents by malicious BOT attacks previously.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: February 7, 2012
    Assignee: KT Corporation
    Inventors: Young Kwan Kwon, Se Man Oh, Sang Youb Lee, Gyu Kweon Han, Ju Hwan Jeong, Seung Tak Oh
  • MALIGNANT BOT CONFRONTATION METHOD AND ITS SYSTEM
    Publication number: 20080155694
    Abstract: A method for dealing with attacks of malicious BOTs in a network security system includes detecting and analyzing a domain name receiving excessive DNS queries to judge the infection of a malicious BOT, registering the corresponding domain name as normal or abnormal management target, and redirecting an abnormal DNS query for the abnormal management target to a redirection processing & response system. Thereby, the automatic detection of malicious BOT attacks and the mechanism which performs the measures and the analysis simultaneously can protect the DNS servers and prevent the security accidents by malicious BOT attacks previously.
    Type: Application
    Filed: January 8, 2008
    Publication date: June 26, 2008
    Applicant: KT CORPORATION
    Inventors: YOUNG KWAN KWON, SE MAN OH, SANG YOUB LEE, GYU KWEON HAN, JU HWAN JEONG, SEUNG TAK OH