Intrusion detection method and system, related network and computer program product therefor
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United States of America Patent
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May 22, 2012
Grant Date -
Dec 27, 2007
app pub date -
Nov 26, 2004
filing date -
Nov 26, 2004
priority date (Note) -
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Abstract
Intrusions in a system under surveillance are detected by matching the events occurring during operation of the system against a knowledge base including information on events which occurred during a learning phase. The detection technique includes the steps of: recording, during the learning phase, temporal data related to the events during the learning phase; identifying, as a function of the temporal data recorded, a dynamic part of the knowledge base; discovering patterns that cover the dynamic part of the knowledge base; and using, during the analysis phase, a regular expression match at least with respect to the dynamic part of the knowledge base.
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