Splunk Search

REGEX for authentication logs

hartfoml
Motivator

I have authentication logs like below:

,AUTHN_METHOD_FOO,123!@#123!@#123!@#asdfgdvfd,123!@#123!@#123!@#asdfgdvfd,123!@#123!@#123!@#asdfgdvfd,123!@#123!@#123!@#asdfgdvfd,username,FIRST,LAST,

I want to use regex to build transform for a field called username and first and last

I had this but it didn't work

rex "(?i)AUTHN_METHOD_*+,*+,*+,*+,*+,(?P<username>[^,]+)"

Any help would be great!!!

Tags (1)
0 Karma
1 Solution

somesoni2
Revered Legend

Try this

rex "(?i)AUTHN_METHOD_\w+,.*,(?<username>[^,]+),(?<first>[^,]+),(?<last>[^,]+)"

View solution in original post

somesoni2
Revered Legend

Try this

rex "(?i)AUTHN_METHOD_\w+,.*,(?<username>[^,]+),(?<first>[^,]+),(?<last>[^,]+)"

hartfoml
Motivator

Thanks, I have a problem becasue the \w+ could be one work or several like this "SUCCESS_TEMPORARY_FIXED_TOKENCODE" and the .* for the 4 sets of guid numbers seems odd

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!

Automated Threat Analysis: Available in ES Premier

Automated Threat Analysis: Centralize and Accelerate Phishing Investigations in Splunk Enterprise ...

What’s New in Splunk AI: Volume 02

Welcome to the second edition of “What’s New in Splunk AI” where we look at the latest and greatest updates, ...

Best Practices: Splunk auto adjust pipeline queue

When you enable autoAdjustQueue in Splunk, maxSize should be understood as the queue size Splunk starts with ...