All Apps and Add-ons

Filtering Windows Application and Security events

MBerikcurtis
Path Finder

I've been filtering Windows Security events for a while now without any issue by using:

props.conf

[WMI:WinEventLog:Security]

TRANSFORMS-wmi=wmisecnull

transforms.conf

[wmisecnull]

REGEX=(?m)^EventCode=(8|33|674|916|4770|5145|5157|4688|4689)

DEST_KEY=queue

FORMAT=nullQueue

then I made these edits

props.conf

[WMI:WinEventLog:Security]

TRANSFORMS-wmi=wmisecnull

WMI:WinEventLog:Application]

TRANSFORMS-wmi=wmiappnull

transforms.conf

[wmisecnull]

REGEX=(?m)^EventCode=(8|33|674|916|4770|5145|5157|4688|4689)

DEST_KEY=queue

FORMAT=nullQueue

[wmiappnull]

REGEX=(?m)^EventCode=(916)

DEST_KEY=queue

FORMAT=nullQueue

after these edits, the events that used to be filter are nolonger filtered.

0 Karma
1 Solution

MarioM
Motivator

the opening "[" is missing at WMI:WinEventLog:Application,is it what you have in conf file or it's only typo in your post?

As well i would change its TRANSFORMS-wmi= for TRANSFORMS-wmiapp= just to be sure there is no conflict with first one.

View solution in original post

jsdao
Explorer

Can you have multiple regex under on stanza or do i have to make a one to one relationship between props and transforms even if the source type and action are the same.

0 Karma

MarioM
Motivator

the opening "[" is missing at WMI:WinEventLog:Application,is it what you have in conf file or it's only typo in your post?

As well i would change its TRANSFORMS-wmi= for TRANSFORMS-wmiapp= just to be sure there is no conflict with first one.

MBerikcurtis
Path Finder

once I put in the missing[ the world started spinning again!

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!

Supercharging Windows Security Detection Performance: Introducing Hybrid Field ...

Windows event logs—from Security auditing and Sysmon to PowerShell script blocks—form the operational backbone ...

Enriching Signals with the OTel Lookup Processor

Introduction Raw telemetry is often incomplete. A log line might record an IP address, but what you really ...

Meet the .conf26 AI Agent Buildathon Winners

At the .conf26 AI Agent Buildathon, Splunk users turned their operational expertise into working AI agents ...