topic Re: Reduce notable events in Splunk Enterprise Security

Reduce notable events

lucanzano — Tue, 24 Aug 2021 10:23:37 GMT

Hello, we have created many custom correlation searches in our client's deployed instance. Right now they are creating too many notable events even with the "window limitation". Can somebody help?

Re: Reduce notable events

richgalloway — Tue, 24 Aug 2021 12:46:46 GMT

Consider disabling less-useful correlation searches, especially information and low-priority events. Re-enable them when the NE volume is under control

Tune the CSs so they only trigger when there is an event requiring attention.

Fix the problems that are triggering the NEs.

Re: Reduce notable events

lucanzano — Tue, 24 Aug 2021 12:48:35 GMT

@richgalloway wrote:
Tune the CSs so they only trigger when there is an event requiring attention.

How do I do it?

Thank you for the answer

Re: Reduce notable events

richgalloway — Tue, 24 Aug 2021 14:43:54 GMT

It depends on the searches. Generally speaking, adjust thresholds within the search before triggering a notable event. For example, instead of triggering when a single interesting event is found, trigger when 3 or more are found within some period of time.