Getting Data In

How do I go about filtering data with transform.conf?

ksbuchanan
Explorer

I am using universal forwarders installed on my domain controllers, and I am successfully filtering specific events (props.conf and transform.conf are show below). This is working as we want it to work, and the data is being indexed into "SecEvents".

I want to add a new server and index into the same index (SecEvents); however, the list of event IDs are different. How can I filter from multiple sources? I've tried adding the host into the REGEX in the transform - but nothing I've tried works.

For the sake of simplicity - let's just say I want events 1000 and 2000 from the "new server", and I want them to drop into the SecEvents index.

Thanks for your help!

Contents of props.conf

[WinEventLog:Security]
TRANSFORMS-security = events-null, events-filter

Contents of transform.conf

[events-null]
REGEX = .
DEST_KEY = queue
FORMAT = nullQueue

[events-filter]
#The last 3...may generate a lot...watch for them
REGEX=(?m)^EventCode=(4720|4722|4724|4725|4726|4727|4728|4729|4730|4731|4732|4733|4734|4735|4737|4740|4741|4743|4744|4745|4746|4747|4748|4749|4750|4751|4752|4753|4754|4755|4756|4757|4758|4759|4760|4761|4762|4763|4767|4771|4723|4625|6272|6273|6278)
DEST_KEY = queue
FORMAT = indexQueue
0 Karma

mstjohn_splunk
Splunk Employee
Splunk Employee

hi @ksbuchanan

Did the answer below solve your problem? If so, please resolve this post by approving it! If your problem is still not solved, keep us updated so that someone else can help ya. Thanks for posting!

0 Karma

gjanders
SplunkTrust
SplunkTrust

Why not filter at the universal forwarder level ? Refer to blog post Controlling 4662 Messages in the Windows Security Event Log or to Monitor Windows event log data in particular the whitelist/blacklist section

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Step into “Hunt the Insider: An Splunk ES Premier Mystery” to catch a cybercriminal ...

After a whole week of being on call, you fell asleep on your keyboard, and you hit a sequence of buttons that ...

SplunkTrust Application Period is Officially OPEN!

It's that time, folks! The application/nomination period for the 2026-2027 SplunkTrust is officially open. If ...

Announcing Modern Navigation: A New Era of Splunk User Experience

We are excited to introduce the Modern Navigation feature in the Splunk Platform, available to both cloud and ...