Splunk Search

Urldecode _raw at index time

Ant1D
Motivator

Hi,

I am aware that it can be done at search-time via props.conf:
[sourcetype]
EVAL-_raw = urldecode(_raw)

Is it possible to urldecode(_raw) at index time in Splunk? I want to perform a urldecode on _raw with the result being assigned to the _raw which will then be indexed by Splunk.

Is there a RegEx that can decode any url?
Thanks in advance for your help.

0 Karma

woodcock
Esteemed Legend

You can use SEDCMD to transform the raw text on the way in but the only facilities to add index-time fields require values that are either a hard-coded string or a contiguous subset of the raw data.

0 Karma

micahkemp
Champion

You may want to look into using a modular input for this.

link text

Modular input use cases

Unique use cases might require a modular or scripted input. Here are some typical examples.

    Stream results from a command, such as vmstat and iostat.
    Query a database, web service, or API.
    Reformat complex data.
    Handle sensitive information more securely.
    Handle special characters in inputs.
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!

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas     Cisco Live 2026 is almost here, and this ...

What Is the Name of the USB Key Inserted by Bob Smith? (BOTS Hint, Not the Answer)

Hello Splunkers,   So you searched, “what is the name of the usb key inserted by bob smith?”  Not gonna lie… ...

Automating Threat Operations and Threat Hunting with Recorded Future

    Automating Threat Operations and Threat Hunting with Recorded Future June 29, 2026 | Register   Is your ...