Splunk Search

How don't we nullify the data?

danielbb
Motivator

A developer here wrote the following -

|eval admin_activity=if((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND NOT like(cmd_data, "%end=%")), "Login Attempt", NULL)
|eval admin_activity=if((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND like(cmd_data, "%end=%") AND isnull(admin_activity)), "Login Success", NULL)
|eval admin_activity=if((like(cmd_data, "%transaction%") AND isnull(admin_activity)), "Config Change", NULL)

We end up having admin_activity only as Config Change because the last eval nullifies the findings from the above two evals.

What can we do here?

Tags (1)
0 Karma
1 Solution

somesoni2
Revered Legend

Merge them in single eval-case , like this, so it stops overwriting value of admin_activity after first condition is true.

|eval admin_activity=case((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND NOT like(cmd_data, "%end=%")), "Login Attempt", (like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND like(cmd_data, "%end=%") AND isnull(admin_activity)), "Login Success", (like(cmd_data, "%transaction%") AND isnull(admin_activity)), "Config Change", true(), null())

View solution in original post

Sukisen1981
Champion

hi @danielbb
You need to use a single eval

   |eval admin_activity=if((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND NOT like(cmd_data, "%end=%")), "Login Attempt", if((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND like(cmd_data, "%end=%") AND isnull(admin_activity)), "Login Success",if((like(cmd_data, "%transaction%") AND isnull(admin_activity)), "Config Change", NULL)))

somesoni2
Revered Legend

Merge them in single eval-case , like this, so it stops overwriting value of admin_activity after first condition is true.

|eval admin_activity=case((like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND NOT like(cmd_data, "%end=%")), "Login Attempt", (like(cmd_data, "%audit%") AND like(cmd_data, "%start=%") AND like(cmd_data, "%end=%") AND isnull(admin_activity)), "Login Success", (like(cmd_data, "%transaction%") AND isnull(admin_activity)), "Config Change", true(), null())
Career Survey
First 500 qualified respondents will receive a $20 gift card! Tell us about your professional Splunk journey.

Can’t make it to .conf25? Join us online!

Get Updates on the Splunk Community!

Community Content Calendar, September edition

Welcome to another insightful post from our Community Content Calendar! We're thrilled to continue bringing ...

Splunkbase Unveils New App Listing Management Public Preview

Splunkbase Unveils New App Listing Management Public PreviewWe're thrilled to announce the public preview of ...

Leveraging Automated Threat Analysis Across the Splunk Ecosystem

Are you leveraging automation to its fullest potential in your threat detection strategy?Our upcoming Security ...