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. 19, 2019

Filed:

Nov. 09, 2015
Applicant:

Nippon Telegraph and Telephone Corporation, Chiyoda-ku, JP;

Inventors:

Kazunori Kamiya, Musashino, JP;

Kazufumi Aoki, Musashino, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); G06F 16/28 (2019.01); G06F 21/56 (2013.01);
U.S. Cl.
CPC ...
H04L 63/1425 (2013.01); G06F 16/285 (2019.01); G06F 21/56 (2013.01); G06F 21/561 (2013.01); G06F 21/565 (2013.01); G06F 2221/2147 (2013.01); H04L 63/145 (2013.01);
Abstract

A malicious communication pattern extraction apparatus extracts communication patterns of traffic group of malwares, and replaces the values of predetermined field with variation in a traffic group with a wild card. Further, the malicious communication pattern extraction apparatus classifies pieces of malware having similar communication patterns in the traffic group into the same cluster, and for each cluster, extracts, as a malicious communication pattern, a communication pattern group having an appearance rate in a traffic group of respective pieces of malware in the cluster, the appearance rate being equal to or larger than a predetermined value. Thereafter, the malicious communication pattern extraction apparatus eliminates, from the extracted malicious communication patterns, any malicious communication pattern having a conformance rate to a traffic group not infected with malware, the conformance rate being equal to or larger than a predetermined value.


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