Splunk Enterprise Security

Enterprise Security: what makes a correlation search a correlation search?

danielbb
Motivator

I'm looking at a sample correlation search called Abnormally High Number of HTTP Method Events By Src -

| tstats `summariesonly` count as web_event_count from datamodel=Web.Web by Web.src, Web.http_method 
| `drop_dm_object_name("Web")` 
| xswhere web_event_count FROM count_by_http_method_by_src_1d in web by http_method is above high

What makes it a correlation search?

1 Solution

lkutch_splunk
Splunk Employee
Splunk Employee

Hi,
According to the ES tutorial... it's not just a search, but a search that then does one of the following:
"A correlation search is a type of search that evaluates events from one or more data sources for defined patterns. When the search finds a pattern, it creates a notable event, adjusts a risk score, or performs an adaptive response action. A correlation search is a saved search with extended capabilities making it easier to create, edit, and use searches for security use cases."
https://docs.splunk.com/Documentation/ES/5.3.1/Tutorials/CorrelationSearch

So since it creates a notable event, it's a correlation search.

View solution in original post

lkutch_splunk
Splunk Employee
Splunk Employee

Hi,
According to the ES tutorial... it's not just a search, but a search that then does one of the following:
"A correlation search is a type of search that evaluates events from one or more data sources for defined patterns. When the search finds a pattern, it creates a notable event, adjusts a risk score, or performs an adaptive response action. A correlation search is a saved search with extended capabilities making it easier to create, edit, and use searches for security use cases."
https://docs.splunk.com/Documentation/ES/5.3.1/Tutorials/CorrelationSearch

So since it creates a notable event, it's a correlation search.

danielbb
Motivator

Ok, makes sense.

This particular search has the following Adaptive Response Actions -

1) Risk Analysis
2) Notable

Get Updates on the Splunk Community!

What's new in Splunk Cloud Platform 9.1.2312?

Hi Splunky people! We are excited to share the newest updates in Splunk Cloud Platform 9.1.2312! Analysts can ...

What’s New in Splunk Security Essentials 3.8.0?

Splunk Security Essentials (SSE) is an app that can amplify the power of your existing Splunk Cloud Platform, ...

Let’s Get You Certified – Vegas-Style at .conf24

Are you ready to level up your Splunk game? Then, let’s get you certified live at .conf24 – our annual user ...