Systems and methods to detect and monitor DNS tunneling
US10432651B2 · kind B2 · utility
9Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2017 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Jan 30, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1466
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods of detecting Domain Name System (DNS) tunnels for monitoring thereof include obtaining data related to DNS traffic between DNS nameservers and clients; determining a score for each DNS nameserver based on the data to characterize DNS queries over a period of time for each DNS nameserver, wherein the score incorporates all DNS queries associated with the associated DNS nameserver over the period of time; determining one or more DNS nameservers likely operating DNS tunnels based on the score; and performing one or more actions on the one or more DNS nameservers related to the DNS tunnels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.