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.:

US 8225402 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 17, 2012

Filed:

Apr. 08, 2009
Applicants:

Amir Averbuch, Jaffa, IL;

Aviram Shmueli, Ramat Hasharon, IL;

Gil David, Shoresh, IL;

Inventors:

Amir Averbuch, Jaffa, IL;

Aviram Shmueli, Ramat Hasharon, IL;

Gil David, Shoresh, IL;

Assignee:

Other;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for detecting a SQL injection attack comprises a training phase and a detection phase. In the training phase, a plurality of SQL queries is transformed into a respective plurality of SQL token domain queries which are processed using a n-gram analysis to provide a threshold and an averaging vector. In the detection phase, each newly arrived SQL query is transformed into a new SQL token domain query, and the n-gram analysis is applied together with the averaging vector and the threshold to each new SQL token domain query to determine if the new SQL query is normal or abnormal. The detection may be online or offline.


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