Splunk Enterprise Security

Splunk Query

rupeshn
Explorer

Hi,

After Extracting a field using regex. I now need to compare whether that particular field contains any command . Could you please help how to proceed further using eval,match or any other way?

0 Karma

sanjeev543
Communicator

Hi,

You could write the regex to match the field values to capture the commands in your newly extracted field. See below,

| makeresults 
| eval commands="vi,cd,hello,world"
| makemv delim="," commands
| mvexpand commands
| rex field=commands "(?<abc>.*)"
| eval contains_command=if(match(abc,"vi|cd"),"Yes","No")

Here I have extracted field abc from field commands and then I used eval and simple regex using match function to identify the commands in field abc
If it's there then I will see result as yes and no respectively.

0 Karma

493669
Super Champion

Hi @rupeshn,
Try below-

...| eval matches = if(match(fieldname,"command Line"), 1, 0)

If it find command line in fieldname then it will return 1 else 0

0 Karma

rupeshn
Explorer

That can be any command. Can i write a regex for command in place of "command line". If yes, Could you please suggest.

0 Karma

493669
Super Champion

Please provide more details on sample data and what output are you expecting

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!

[Puzzles] Solve, Learn, Repeat: Character substitutions with Regular Expressions

This challenge was first posted on Slack #puzzles channelFor BORE at .conf23, we had a puzzle question which ...

Splunk Community Badges!

  Hey everyone! Ready to earn some serious bragging rights in the community? Along with our existing badges ...

[Puzzles] Solve, Learn, Repeat: Matching cron expressions

This puzzle (first published here) is based on matching timestamps to cron expressions.All the timestamps ...