Splunk Search

Field extracting using Regex

satishsdange
Builder

I am trying to extract username & password from below event -

form_key=6LgmjzGyzOYLIf11&login[username]=dev_lee@gmail.com&login[password]=password&send= 

I am able to extract password properly but for username I am getting dev_lee%40gmail.com instead of precise email ID.
Below is my regex

login.*?username.*?=(?<splUsername>.*?)&.*?login.*?password.*?=(?<splPassword>.*?)&

Could someone please help me fix the problem.

Tags (1)
0 Karma
1 Solution

esix_splunk
Splunk Employee
Splunk Employee

Try this in addition to the urldecode..

.. | rex field=_raw "login\[username\]\=(?<username>[^\&]+)\&login\[password\]\=(?<password>[^&]+)\&send" | eval mail=urldecode(username) | ..

That should fix you up.

View solution in original post

0 Karma

esix_splunk
Splunk Employee
Splunk Employee

Try this in addition to the urldecode..

.. | rex field=_raw "login\[username\]\=(?<username>[^\&]+)\&login\[password\]\=(?<password>[^&]+)\&send" | eval mail=urldecode(username) | ..

That should fix you up.

0 Karma

Sebastian2
Path Finder

Looks like your event is url encoded. Have you tried to decode it? Try using the buildin urldecode?
When searching your data you could use it like:

... | eval mail = urldecode(mail) | ...
Get Updates on the Splunk Community!

Improve Your Security Posture

Watch NowImprove Your Security PostureCustomers are at the center of everything we do at Splunk and security ...

Maximize the Value from Microsoft Defender with Splunk

 Watch NowJoin Splunk and Sens Consulting for this Security Edition Tech TalkWho should attend:  Security ...

This Week's Community Digest - Splunk Community Happenings [6.27.22]

Get the latest news and updates from the Splunk Community here! News From Splunk Answers ✍️ Splunk Answers is ...