Getting Data In

Conditional execution of transforms based on property of event

dstaulcu
Builder

Does anyone know of a way to control execution of transforms based on a non-metadata property of an event?

I have a collection of 100+ regular expressions which extract values using strongly typed field names within windows security logs. I don't want Splunk to have to execute 100+ regular expressions against every event. Ideally, I would like to control Splunk behavior such that only certain extraction rules are executed against events having certain patterns (in my case, EventCodes) within the sourcetype. Is there a way to do this?

Here is an example of the sort of logic I would like to be able to apply

Props.conf:
[source::WinEventLog:Security]
REPORT-wineventlog_security_subject_extractions_1 = if(match(EventCode,(4624|4624),"wineventlog_security_subject_extractions_1",noop)

Transforms.conf:
[wineventlog_security_subject_extractions_1]
SOURCE_KEY = _raw
REGEX = Subject :\s+Security ID:\s+(.)\s+Account Name:\s+(.)\s+Account Domain:\s+(.)\s+Logon ID:\s+(.)
FORMAT = Subject_SID::$1 Subject_Account_Name::$2 Subject_Account_Domain::$3 Subject_Logon_ID::$4

a_naoum
Path Finder

Did you found any solution on this?

0 Karma
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 ...