Splunk Enterprise Security
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 
Ask a Question

How to create Splunk alert to detect unauthorized certificate usage?

MagicVisitor
New Member
‎01-08-2023 04:21 PM

Hi,

I am trying to extract a new field to spot unauthrorised certificate usage on a server.  Under event ID 4768, there is a "Certificate Information" heading followed by Certificate Issuer Name, Certificate Serial Number, and Certificate Thumbprint. Ideally, I want to extract the Certificate Thumbprint field so I can create an alert. But because the logs I have so far have empty Certificate Information fields, it's making it difficult to create an expression. Does anyone have ideas how to extract the Certificate Thumbprint field?

Untitled.png

Regards,

Mark

Labels (1)
Labels
0 Karma
Reply
Get Updates on the Splunk Community!

Enterprise Security Content Update (ESCU) | New Releases

In December, the Splunk Threat Research Team had 1 release of new security content via the Enterprise Security ...

Why am I not seeing the finding in Splunk Enterprise Security Analyst Queue?

(This is the first of a series of 2 blogs). Splunk Enterprise Security is a fantastic tool that offers robust ...

Index This | What are the 12 Days of Splunk-mas?

December 2024 Edition Hayyy Splunk Education Enthusiasts and the Eternally Curious!  We’re back with another ...