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:
Jul. 01, 2025
Filed:
May. 23, 2024
Applicant:
Sophos Limited, Abingdon, GB;
Inventor:
Kenneth D. Ray, Seattle, WA (US);
Assignee:
Sophos Limited, Abingdon, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01);
U.S. Cl.
CPC ...
H04L 63/1416 (2013.01); H04L 63/0227 (2013.01); H04L 63/0236 (2013.01); H04L 63/1425 (2013.01); H04L 63/145 (2013.01); H04L 63/20 (2013.01);
Abstract
Possible Denial of Service (DOS) activity is detected and remediated based on an initial heartbeat failure from a network asset, followed by externally directed network traffic from the network asset. In general, an interruption of the heartbeat can signal the possible presence of malware on the network asset, and the externally directed network traffic, and particularly certain patterns of traffic such as a high volume of traffic toward an address with a known, good reputation, can signal the possible presence of a DoS bot on the network asset that is sourcing the network traffic.