Splunk Search

Help regex for masking

mishutts
Explorer

Hi,

Can someone please help me regex a password field to mask data?

I've been trying to figure out how to mask the password in the following example;

  • npx violation-comments-to-cloud-command-line -username JoeSmith@company.com -password abcdef78 -ws walace -rs ttcc-lsls -prid 1441 -v CHECKSTYLE . '.*/reports/filename-goes-here-results.xml$' ESLint -keep-old-comments true -www1 true

I've tried many variations but it either deletes the remainder of the event or doesn't work.

[password-anonymizer]
REGEX =(?m)^(-password\s).*$
FORMAT = $1########
DEST_KEY = _raw

Thanks

Labels (1)
0 Karma
1 Solution

to4kawa
Ultra Champion

related answer: https://answers.splunk.com/answers/824299/anonymize-data-from-json-file.html

 [password-anonymizer]
 REGEX = (?m)(.*-password )\w+(.*)
 FORMAT = $1#######$2
 DEST_KEY =_raw

For DEST_KEY =_raw , you should keep all text in the event by REGEX.

@richgalloway 's way or my way, As you wish.

https://docs.splunk.com/Documentation/Splunk/latest/Data/Anonymizedata

View solution in original post

0 Karma

to4kawa
Ultra Champion

related answer: https://answers.splunk.com/answers/824299/anonymize-data-from-json-file.html

 [password-anonymizer]
 REGEX = (?m)(.*-password )\w+(.*)
 FORMAT = $1#######$2
 DEST_KEY =_raw

For DEST_KEY =_raw , you should keep all text in the event by REGEX.

@richgalloway 's way or my way, As you wish.

https://docs.splunk.com/Documentation/Splunk/latest/Data/Anonymizedata

0 Karma

mishutts
Explorer

Thank you. This worked like a charm.

0 Karma

richgalloway
SplunkTrust
SplunkTrust

Try using SEDCMD in your props.conf file.

[mysourcetype]
SEDCMD-maskpw = s/-password -w+/-password ########/
---
If this reply helps you, Karma would be appreciated.
Career Survey
First 500 qualified respondents will receive a $20 gift card! Tell us about your professional Splunk journey.
Get Updates on the Splunk Community!

Observe and Secure All Apps with Splunk

 Join Us for Our Next Tech Talk: Observe and Secure All Apps with SplunkAs organizations continue to innovate ...

What's New in Splunk Observability - August 2025

What's New We are excited to announce the latest enhancements to Splunk Observability Cloud as well as what is ...

Introduction to Splunk AI

How are you using AI in Splunk? Whether you see AI as a threat or opportunity, AI is here to stay. Lucky for ...