Online alert ranking and attack scenario reconstruction
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United States of America Patent
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Jun 25, 2019
Grant Date -
Feb 1, 2018
app pub date -
Oct 10, 2017
filing date -
Apr 16, 2015
priority date (Note) -
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Abstract
Methods and systems for detecting security intrusions include detecting alerts in monitored system data. Temporal dependencies are determined between the alerts based on a prefix tree formed from the detected alerts. Content dependencies between the alerts are determined based on a distance between alerts in a graph representation of the detected alerts. The alerts are ranked based on an optimization problem that includes the temporal dependencies and the content dependencies. A security management action is performed based on the ranked alerts.
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