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Uses of Mitre Att&CK in Security Essentials



I'm implementing Splunk Security Essentials in an environment that already has detection rules, based on the Mitre Att&CK framework.

I have correctly entered the datasources in Data Inventory and indicated them as "Availables".

In Content > Custom Content, I added our detection rules by hand. I've specified the Tactics, and the Mitre Techniques and SubTechniques. I've also indicated their status in bookmarking, and some are "Successfully implemented".

When I go to Analytics Advisor > Mitre ATT&CK Framework, I see the "Content (Available)" in the MITRE ATT&CK matrix, and it's consistent with our detection rules.

But when I select Threat Groups, in "2.Selected Content", in "Total Content Selected", I get zero, whereas detection rules relate to the sub-techniques used by the selected Thread Groups.

How can I solve this problem?

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