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.

Date of Patent:
Nov. 07, 2023

Filed:

Feb. 24, 2020
Applicant:

Palo Alto Networks (Israel Analytics) Ltd., Tel Aviv, IL;

Inventors:

Yinnon Meshi, Kibbutz Revivim, IL;

Idan Amit, Ramat Gan, IL;

Jonathan Allon, Haifa, IL;

Aviad Meyer, Hod-Hasharon, IL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2013.01); H04L 9/40 (2022.01);
U.S. Cl.
CPC ...
H04L 63/145 (2013.01); H04L 63/0209 (2013.01); H04L 63/0263 (2013.01); H04L 63/1425 (2013.01);
Abstract

Methods, apparatus and computer software products implement embodiments of the present invention that include protecting a computer system, by collecting information from data traffic transmitted between multiple local nodes on a private data network and public IP addresses corresponding to multiple remote nodes on a public data network. DNS resolutions are detected in the collected information, each DNS resolution identifying a local node requesting the resolution with respect to a URI and a public IP address corresponding to the URI. Transmissions from the local nodes to the public IP addresses are detected in the collected information at respective times, and the detected DNS resolutions are compared to the detected transmissions so as to identify the transmissions from the local notes to the public IP addresses that were not resolved by the DNS resolutions. Finally, a protective action is initiated with respect to at least some of the identified transmissions.


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