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Displaying posts with tag: SIEM (reset)
Implementing Active Lists in OSSEC

The second OSSEC week just ended. Here is a reflection about a feature that does not exist (yet?) in OSSEC. The goal of a SIEM (“Security Incidents and Events Management“) is to collect logs from multiple non-heterogeneous sources and process them to add some extra value to the events. To achieve this, powerful correlation engines can be used to create rules to match different types of events  coming from different sources and to create a unique security incident:

  if (condition1 && condition2 && condition3)

Once created, The security incident must be processed. The basic action is to notify the right people with messages displayed on a console, new events, emails, etc. But, depending on their criticality, not all security incidents must result in messages. Some correlation rules results may just create new …

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