Patents by Inventor Yoshiya Kizu

Yoshiya Kizu 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: 11520884
    Abstract: Provided is a more versatile technique that makes it possible to input dummy information in response to an attacker seeking to collect normal information that cannot be replaced with dummy information. In the present invention, a dummy information insertion device inserts dummy information into a second location that is determined using: first location information indicating a first location that contains normal information, from among all normal information in a computer, which cannot be replaced with other information; and insertion condition information that indicates conditions for determining the second location into which dummy information is to be inserted, with such dummy information resembling the normal information that cannot be replaced and not being present in the computer or in a local network connected to the computer.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: December 6, 2022
    Assignee: NEC CORPORATION
    Inventors: Kentaro Sonoda, Kayato Sekiya, Yoshiya Kizu
  • Publication number: 20220030016
    Abstract: A malware analysis device 10 includes: a dynamic analysis unit 11 which performs dynamic analysis of malware; a communication determination unit 12 which determines whether communication by the malware occurs when the dynamic analysis unit 11 performs dynamic analysis; a static analysis requesting unit 13 which suspends communication when the communication determination unit 12 determines that the communication by the malware occurs to present a request to perform static analysis; and a setting changing unit 14 which sets a device as a communication destination of the malware to make a response obtained by the static analysis as being expected by the malware.
    Type: Application
    Filed: August 9, 2021
    Publication date: January 27, 2022
    Applicant: NEC CORPORATION
    Inventors: Hisato ONODERA, Yoshiya Kizu
  • Patent number: 11134089
    Abstract: A malware analysis device 10 includes: a dynamic analysis unit 11 which performs dynamic analysis of malware; a communication determination unit 12 which determines whether communication by the malware occurs when the dynamic analysis unit 11 performs dynamic analysis; a static analysis requesting unit 13 which suspends communication when the communication determination unit 12 determines that the communication by the malware occurs to present a request to perform static analysis; and a setting changing unit 14 which sets a device as a communication destination of the malware to make a response obtained by the static analysis as being expected by the malware.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 28, 2021
    Assignee: NEC CORPORATION
    Inventors: Hisato Onodera, Yoshiya Kizu
  • Publication number: 20190362073
    Abstract: Provided is a more versatile technique that makes it possible to input dummy information in response to an attacker seeking to collect normal information that cannot be replaced with dummy information. In the present invention, a dummy information insertion device inserts dummy information into a second location that is determined using: first location information indicating a first location that contains normal information, from among all normal information in a computer, which cannot be replaced with other information; and insertion condition information that indicates conditions for determining the second location into which dummy information is to be inserted, with such dummy information resembling the normal information that cannot be replaced and not being present in the computer or in a local network connected to the computer.
    Type: Application
    Filed: August 8, 2019
    Publication date: November 28, 2019
    Applicant: NEC Corporation
    Inventors: Kentaro SONODA, Kayato SEKIYA, Yoshiya KIZU
  • Patent number: 10423784
    Abstract: Provided is a more versatile technique that makes it possible to input dummy information in response to an attacker seeking to collect normal information that cannot be replaced with dummy information. In the present invention, a dummy information insertion device inserts dummy information into a second location that is determined using: first location information indicating a first location that contains normal information, from among all normal information in a computer, which cannot be replaced with other information; and insertion condition information that indicates conditions for determining the second location into which dummy information is to be inserted, with such dummy information resembling the normal information that cannot be replaced and not being present in the computer or in a local network connected to the computer.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: September 24, 2019
    Assignee: NEC Corporation
    Inventors: Kentaro Sonoda, Kayato Sekiya, Yoshiya Kizu
  • Publication number: 20180288076
    Abstract: A malware analysis device 10 includes: a dynamic analysis unit 11 which performs dynamic analysis of malware; a communication determination unit 12 which determines whether communication by the malware occurs when the dynamic analysis unit 11 performs dynamic analysis; a static analysis requesting unit 13 which suspends communication when the communication determination unit 12 determines that the communication by the malware occurs to present a request to perform static analysis; and a setting changing unit 14 which sets a device as a communication destination of the malware to make a response obtained by the static analysis as being expected by the malware.
    Type: Application
    Filed: March 22, 2018
    Publication date: October 4, 2018
    Applicant: NEC Corporation
    Inventors: Hisato ONODERA, Yoshiya KIZU
  • Patent number: 10038669
    Abstract: To provide a path control system, a control device and a path control method that can achieve reduction of the load on a gateway device, there are included a communication device, a communication device, a security device that provides a security feature to data transmitted and received between the communication device and the communication device, and a path control device that selects one of a first path through the security device and a second path not through the security device as a communication path of the data based on a path information table where an attribute of the data and a communication path between the communication device and the communication device are associated.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: July 31, 2018
    Assignee: NEC Corporation
    Inventors: Yoshiya Kizu, Kenichi Kashima
  • Publication number: 20170329967
    Abstract: Provided is a more versatile technique that makes it possible to input dummy information in response to an attacker seeking to collect normal information that cannot be replaced with dummy information. In the present invention, a dummy information insertion device inserts dummy information into a second location that is determined using: first location information indicating a first location that contains normal information, from among all normal information in a computer, which cannot be replaced with other information; and insertion condition information that indicates conditions for determining the second location into which dummy information is to be inserted, with such dummy information resembling the normal information that cannot be replaced and not being present in the computer or in a local network connected to the computer.
    Type: Application
    Filed: November 30, 2015
    Publication date: November 16, 2017
    Applicant: NEC Corporation
    Inventors: Kentaro SONODA, Kayato SEKIYA, Yoshiya KIZU
  • Publication number: 20150172186
    Abstract: A network system according to the present invention includes a switch configured to receive a packet from a terminal, to identify source information of the packet, to append the source information to the packet based on an instruction, and to transmit the packet, to which the source information is appended, to a communication path based on the instruction, and a controller configured to issue the instruction to the switch. Through this, communication source information, such as a user name, can be identified and the communication path can be specified for respective pieces of source information by referring to the communication from the terminal without introducing an additional device.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 18, 2015
    Inventor: Yoshiya KIZU
  • Publication number: 20150047010
    Abstract: To provide a path control system, a control device and a path control method that can achieve reduction of the load on a gateway device, there are included a communication device, a communication device, a security device that provides a security feature to data transmitted and received between the communication device and the communication device, and a path control device that selects one of a first path through the security device and a second path not through the security device as a communication path of the data based on a path information table where an attribute of the data and a communication path between the communication device and the communication device are associated.
    Type: Application
    Filed: February 1, 2013
    Publication date: February 12, 2015
    Inventors: Yoshiya Kizu, Kenichi Kashima