Splunk Search

Eval a transaction with conditional statement

aohls
Contributor

I am using a transaction to group some jobs and get the timings. In doing so I want to check for certain steps, file download steps. I have the following.

| transaction unifyends=true JobID maxspan=12h
| eval duration=round(duration/60, 2)
| eval FTPDownload=if(like(_raw, "%FTPDownload%"), "Yes", "No")

In this case I want to check if the transaction itself contains FTPDownload, and set FTPDownload to Yes or No. I am at times getting both Yes and No, for the same job which does not change. Also for jobs I know and see there is an FTPDownload step, I am getting No back. Is _raw in this case only evaluating the first event in the transaction? Is there any issue with this approach I am overlooking? It seems like this should work but the results are not correct.

0 Karma
1 Solution

somesoni2
Revered Legend

Try this

| transaction unifyends=true JobID maxspan=12h | eval duration=round(duration/60, 2) | eval FTPDownload=if(match(_raw, "FTPDownload"), "Yes", "No")

OR

| eval FTPDownload=if(match(_raw, "FTPDownload"), "Yes", null()) | transaction unifyends=true JobID maxspan=12h | eval duration=round(duration/60, 2) | eval FTPDownload=coalesce(FTPDownload,"No")

View solution in original post

somesoni2
Revered Legend

Try this

| transaction unifyends=true JobID maxspan=12h | eval duration=round(duration/60, 2) | eval FTPDownload=if(match(_raw, "FTPDownload"), "Yes", "No")

OR

| eval FTPDownload=if(match(_raw, "FTPDownload"), "Yes", null()) | transaction unifyends=true JobID maxspan=12h | eval duration=round(duration/60, 2) | eval FTPDownload=coalesce(FTPDownload,"No")

aohls
Contributor

@somesoni2 The first one worked great. I attempted to use match very quickly but must have mistyped something along the way.

0 Karma
Get Updates on the Splunk Community!

Splunk Enterprise Security 8.x: The Essential Upgrade for Threat Detection, ...

 Prepare to elevate your security operations with the powerful upgrade to Splunk Enterprise Security 8.x! This ...

Get Early Access to AI Playbook Authoring: Apply for the Alpha Private Preview ...

Passionate about security automation? Apply now to our AI Playbook Authoring Alpha private preview ...

Reduce and Transform Your Firewall Data with Splunk Data Management

Managing high-volume firewall data has always been a challenge. Noisy events and verbose traffic logs often ...