Patents by Inventor Christian Neufeld

Christian Neufeld 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).

  • Identifying DNS tunneling domain names by aggregating features per subdomain
    Patent number: 11595357
    Abstract: In one embodiment, a service computes a plurality of features of a subdomain for which a Domain Name System (DNS) query was issued. The service aggregates the plurality of computed features into a feature vector. The service uses the feature vector as input to a machine learning classifier, to determine whether the subdomain is a DNS tunneling domain name. The service provides an indication that the subdomain is a DNS tunneling domain name, when the machine learning classifier determines that the subdomain is a DNS tunneling domain name.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: February 28, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: David Brandon Rodriguez, Thomas Manianghat Mathew, Gilad Rainer, Dhia Mahjoub, Jingchuan Chen, Christian Neufeld
  • IDENTIFYING DNS TUNNELING DOMAIN NAMES BY AGGREGATING FEATURES PER SUBDOMAIN
    Publication number: 20210126901
    Abstract: In one embodiment, a service computes a plurality of features of a subdomain for which a Domain Name System (DNS) query was issued. The service aggregates the plurality of computed features into a feature vector. The service uses the feature vector as input to a machine learning classifier, to determine whether the subdomain is a DNS tunneling domain name. The service provides an indication that the subdomain is a DNS tunneling domain name, when the machine learning classifier determines that the subdomain is a DNS tunneling domain name.
    Type: Application
    Filed: March 12, 2020
    Publication date: April 29, 2021
    Inventors: David Brandon Rodriguez, Thomas Manianghat Mathew, Gilad Rainer, Dhia Mahjoub, Jingchuan Chen, Christian Neufeld