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Correlation Rule for meeting/exceeding finite number of events for particular Sig ID(s)

Good Afternoon,

I have a feeling that I'm overlooking the detail that would allow me to create this, but I'm looking to create a correlation rule and alarm so that, for example, three (or more) port scans come in within a 24 hour period from the NSM - that an alarm would trigger for persistent scanning. I've been experimenting with the standard deviation and various components to attempt to get one to trigger under the previously described scenario. Does anyone have a suggestion of what to try?

Thank you.

1 Reply
proxima
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Re: Correlation Rule for meeting/exceeding finite number of events for particular Sig ID(s)

 

Hi,

Maybe you should try this one:

 

CE.png

 

Best Regards

MK

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