Splunk Search

Search Chain

phillipmadm
Explorer

Hopefully this is an easy one.
We have an alert setup that notifies us if a specific error occurs more than 30 times in 1 minute. It works and gives us a nice little report of the hit count. Since this report is a mass disconnect alert, it was based on the quantity of termination messages. We now need to notify the users associated with the mass disconnect. Username field is available in the source messages but I'm having an issue chaining the logic together.

Base alert below.
index=security source="application.log" application_message=termination| bucket _time span=1m | stats count by _time | WHERE count > 30

Tags (1)
0 Karma
1 Solution

DalJeanis
Legend
index=security source="application.log" application_message=termination
| bucket _time span=1m 
| stats count as termCount, values(username) as username by _time 
| WHERE termCount > 30 

The result will be a multivalue field with each username in it.

If you wanted to break out the field again for individual notification, then use

| mvexpand username

View solution in original post

0 Karma

DalJeanis
Legend
index=security source="application.log" application_message=termination
| bucket _time span=1m 
| stats count as termCount, values(username) as username by _time 
| WHERE termCount > 30 

The result will be a multivalue field with each username in it.

If you wanted to break out the field again for individual notification, then use

| mvexpand username
0 Karma

phillipmadm
Explorer

Worked like a charm.
Thanks

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!

Agentic SOC Triage: Investigating Splunk ES Notables with MCP Server and a Local LLM

The Problem: Too Many Alerts, Too Little Context Security operations teams running Splunk Enterprise Security ...

All Work and No Play? Not at .conf26! Unwind at These Evening Events

Between hands-on technical sessions, keynote reveals, and diving into live architectures, .conf26 is packed ...

Join the Hackathon at .conf26 and build a No-Code AI agent

Join us for the AI Agent Buildathon, an in-person, three-hour hands-on Hackathon where you’ll use Splunk Agent ...