The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2026
Filed:
Apr. 25, 2024
Splunk Inc., San Francisco, CA (US);
Kumar Sharad, Dresden, DE;
Namratha Sreekanta, Fremont, CA (US);
Abhinav Mishra, San Francisco, CA (US);
Glory Emmanuel Avina, Brentwood, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Methods and devices are disclosed herein to facilitate the detection of Domain Name System (DNS) exfiltration attacks. In some examples, a DNS request is used to generate a tokenized vector that corresponds to the DNS request, features of the DNS request, and aggregated features calculated over a sliding window representative of a recent history of events between a particular source and domain. The tokenized vector is input into a neural network to generate a probability score indicating a likelihood that the current DNS request corresponds to a DNS exfiltration. A graphical user interface is generated to display an indication of the probability score for the current DNS request.