Splunk Enterprise Security

Does an IOC get removed from ip_intel if you remove it from the local lookup

cybersecrav
New Member

Hi all,

So I followed the guide here https://docs.splunk.com/Documentation/ES/4.5.1/User/Configureblocklists in order to upload a custom csv file with some IOCs in it, and created a new intelligence download referring to the lookup, with 'lookup://lookup_name'.

My assumption was that this lookup is dynamic so when you remove an IOC from the original lookup, this gets reflected in the ip_intel and other collections as well once the threat searches are run. I tried this and the IOC still exists in the collection and threat searches still run against it. When I add an IOC to the lookup, this gets added to ip_intel as well so that's working as expected.

Am I wrong in thinking that IOCs get removed from ip_intel and other collections when you remove an IOC from the original lookup? Is the only way to remove an IOC to re-write the ip_intel without the said IOC using 'outputlookup'?

Thanks for all your help!

0 Karma
Career Survey
First 500 qualified respondents will receive a $20 gift card! Tell us about your professional Splunk journey.


Introducing Unified TDIR with the New Enterprise Security 8.2

Read the blog
Get Updates on the Splunk Community!

Splunk AI Assistant for SPL vs. ChatGPT: Which One is Better?

In the age of AI, every tool promises to make our lives easier. From summarizing content to writing code, ...

Data Persistence in the OpenTelemetry Collector

This blog post is part of an ongoing series on OpenTelemetry. What happens if the OpenTelemetry collector ...

Thanks for the Memories! Splunk University, .conf25, and our Community

Thank you to everyone in the Splunk Community who joined us for .conf25, which kicked off with our iconic ...