topic How to black list all the ports except the approved ports using interesting ports list in splunk enterprise security? in Splunk Enterprise Security

How to black list all the ports except the approved ports using interesting ports list in splunk enterprise security?

prammod123 — Mon, 24 Jun 2019 08:18:56 GMT

I would like to black list (get alert) for all the ports excepting the approved port list using interesting port list.

Please advise on the available options to achieve this.

Re: How to black list all the ports except the approved ports using interesting ports list in splunk enterprise security?

Azeemering — Mon, 24 Jun 2019 11:33:52 GMT

Since the interesting ports list in ES is stored in a lookup you can build a SPL query alert based on:

    |  inputlookup interesting_ports.csv

use the fields is_prohibited=true I guess.

Re: How to black list all the ports except the approved ports using interesting ports list in splunk enterprise security?

prammod123 — Mon, 24 Jun 2019 11:41:14 GMT

I think re articulating the question would help to get the nearest answer.. I want to mark every other port as prohibited except the approved ports in my environment.

Re: How to black list all the ports except the approved ports using interesting ports list in splunk enterprise security?

Azeemering — Mon, 24 Jun 2019 11:50:40 GMT

Same counts for that I guess. You can modify the interesting_ports.csv to match your needs.