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:
Dec. 11, 2007
Filed:
May. 20, 2003
Robert William Danford, Ashburn, VA (US);
Kenneth M. Farmer, Manitou Springs, CO (US);
Clark Debs Jeffries, Chapel Hill, NC (US);
Robert B. Sisk, Chapel Hill, NC (US);
Michael A. Walter, Denver, CO (US);
Robert William Danford, Ashburn, VA (US);
Kenneth M. Farmer, Manitou Springs, CO (US);
Clark Debs Jeffries, Chapel Hill, NC (US);
Robert B. Sisk, Chapel Hill, NC (US);
Michael A. Walter, Denver, CO (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method of progressive response for invoking and suspending blocking measures that defend against network anomalies such as malicious network traffic so that false positives and false negatives are minimized. When an anomaly is detected, the detector notifies protective equipment such as a firewall or a router to invoke a blocking measure. The blocking measure is maintained for an initial duration, after which it is suspended while another test for the anomaly is made. If the anomaly is no longer evident, the method returns to the state of readiness. Otherwise, a loop is executed to re-applying the blocking measure for a specified duration, then suspend the blocking measure and test again for the anomaly. If the anomaly is detected, the blocking measure is re-applied, and its duration is adapted. If the anomaly is no longer detected, the method returns to the state of readiness.