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:
May. 03, 2011

Filed:

Sep. 28, 2006
Applicant:

Takayuki Shizuno, Tokyo, JP;

Inventor:

Takayuki Shizuno, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A port hopping flow detection system includes a storage section configured to store flow data for each of past flows of packets which have been transmitted from application programs and an application data for each of the application program. A receiving unit receives a new flow of packets. A detecting unit extracts a flow data for the new flow to store in the storage section, calculates an application data for the new flow from the extracted flow data for the new flow to compare the calculated application data with the application data stored in the storage section, and determines whether the new flow has been subjected to port hopping.


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