Pattern-oriented intrusion-detection system and method
Patent 5278901 Issued on January 11, 1994. Estimated Expiration Date: 
April 30, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 30, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesRange limited area protection system Near ultrasonic pattern comparison intrusion detector Computer security device Interference avoidance device for use in a sensor system System and method of protecting integrity of computer data and software 5117457 InventorsApplicationNo. 875943 filed on 04/30/1992US Classes:726/22, MONITORING OR SCANNING OF SOFTWARE OR DATA INCLUDING ATTACK PREVENTION713/188COMPUTER VIRUS DETECTION BY CRYPTOGRAPHYExaminersPrimary: Gregory, Bernarr E.Attorney, Agent or FirmInternational ClassH04L 009/00AbstractThe present invention provides a pattern-oriented intrusion detection system and method that defines patterns of intrusion based on object privilege and information flow in secure computer systems to detect actual intrusion occurrences. This approach has the advantage of detecting context-dependent intrusions such as those caused by inadvertent execution of foreign programs containing viruses or Trojan Horses and also those caused by unintended use of foreign input data. The present invention can track both information and privilege flows within a system, and has the ability to uniformly define various types of intrusion patterns. Operational security problems can lead to intrusion in secure computer systems. With this approach, explicitly defined types of intrusion patterns due to operational security problems can be detected.Other References
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