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:
May. 16, 2017
Filed:
Jul. 31, 2014
Applicant:
Cisco Technology, Inc., San Jose, CA (US);
Inventors:
Martin Grill, Prague, CZ;
Ivan Nikolaev, Prague, CZ;
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/00 (2006.01); H04L 29/06 (2006.01); H04L 29/08 (2006.01); H04L 29/12 (2006.01);
U.S. Cl.
CPC ...
H04L 63/1416 (2013.01); H04L 61/1511 (2013.01); H04L 63/145 (2013.01); H04L 67/104 (2013.01); H04L 2463/144 (2013.01);
Abstract
Detecting DGA-based malware is disclosed. In an embodiment, a number of domain name server requests originating from a particular host among a plurality of hosts is determined. The number of domain name server requests are directed to one or more domain name servers. A number of internet protocol addresses contacted by the particular host is determined. Based on the number of domain name server requests and the number of internet protocol addresses contacted existence of malware on the particular host is determined.