Getting Data In

How to filter results by CSV Lookup?

driva
Path Finder

Hi guys,

I'm working with the syslogs of a basic web filter. I have a CSV file containing "bad words searched" that I'd like to report on. Essentially, I'd like to create a Table with Username, IP and the "Bad Word Searched". Currently I can create a a table with Username, IP and ALL words searched but not able to filter results based on the lookup.

My current search is:

index=WebFilter | stats count by Web_username, Web_IP, Web_GoogleSearch | sort -count

How could I use a lookup file to filter the results?

Ideally I'd like something like this but I can't get the syntax right as I'm not sure how to apply this to the results properly:

index=WebFilter [| inputlookup BadWords.csv | rename BadWordsList as Web_BadWords] | stats count by Web_username, Web_IP, Web_GoogleSearch, Web_BadWords | sort -count

Any guidance would be amazing, thank you.

Best wishes,
D

0 Karma
1 Solution

driva
Path Finder

I managed to solve it, the search needed was:

 index=WebFilter [| inputlookup BadWords.csv | eval BadWordsList="*"+BadWordsList+"*" | rename BadWordsList as web_GoogleSearch] | stats count by web_GoogleSearch, web_User, _time

View solution in original post

0 Karma

driva
Path Finder

I managed to solve it, the search needed was:

 index=WebFilter [| inputlookup BadWords.csv | eval BadWordsList="*"+BadWordsList+"*" | rename BadWordsList as web_GoogleSearch] | stats count by web_GoogleSearch, web_User, _time
0 Karma

manjunathmeti
Champion

You can try:

index=WebFilter | lookup BadWords.csv BadWordsList as Web_BadWords OUTPUT BadWordsList | stats count by Web_username, Web_IP, Web_GoogleSearch, BadWordsList | sort -count

0 Karma

driva
Path Finder

Hi, thanks for your response! I tried the search which didn't throw up an error this (which is good) however I get back 0 results. Would this be because the Web_GoogleSearch contains the bad word within the string and not an exact match in the CSV file? If this is the case, is there anything I can do to say 'if Web_GoogleSearch contains word from list, output the results'? Thanks for your help.

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!

Make Your Machine Data AI-Ready in Splunk

Every team is getting ready for AI agents.   Thursday, November 12, 2026  |  11AM  PST / 2PM EST   ...

Splunk Asynchronous Forwarding Explained

Splunk asynchronous forwarding is often misunderstood as simply setting autoLBVolume. That is not quite right. ...

How to Monitor AI Agents with Splunk Agent Observability

Let’s say I’m running a travel planning AI app in production. A user asks for three concise hotel options in ...