Splunk Search

How to exclude the Windows events with Splunk process before indexing?

kiran331
Builder

Hi,

I see a lot of events in Windows logs with Process splunk-regmon, powershell etc. Is there a way to exclude the processes before indexing?

message contains:

C:\Program Files\SplunkUniversalForwarder\bin\*
0 Karma
1 Solution

gcusello
SplunkTrust
SplunkTrust

Hi
following http://docs.splunk.com/Documentation/Splunk/6.6.2/Forwarding/Routeandfilterdatad put in your indexers something like this:

in props.conf

[WinEventLog:Security]
 TRANSFORMS-set-exclude=set_exclude,set_nullqueue

in transforms.conf

[set_exclude]
 REGEX=.
 DEST_KEY = queue
 FORMAT = indexQueue

 [set_nullqueue]
 REGEX=C:\\Program Files\\SplunkUniversalForwarder\\bin\\\*
 DEST_KEY=queue
 FORMAT=nullQueue

Bye.
Giuseppe

View solution in original post

0 Karma

gcusello
SplunkTrust
SplunkTrust

Hi
following http://docs.splunk.com/Documentation/Splunk/6.6.2/Forwarding/Routeandfilterdatad put in your indexers something like this:

in props.conf

[WinEventLog:Security]
 TRANSFORMS-set-exclude=set_exclude,set_nullqueue

in transforms.conf

[set_exclude]
 REGEX=.
 DEST_KEY = queue
 FORMAT = indexQueue

 [set_nullqueue]
 REGEX=C:\\Program Files\\SplunkUniversalForwarder\\bin\\\*
 DEST_KEY=queue
 FORMAT=nullQueue

Bye.
Giuseppe

0 Karma

sbbadri
Motivator

@kiran331

[WinEventLog:Security]
blacklist3 = EventCode="4688" New_Process_Name="C:\Program Files\SplunkUniversalForwarder\bin\*"

I hope New_Process_Name as been extracted.

or

[WinEventLog:Security]
blacklist3 = EventCode="4688" Message="A new process has been created."

0 Karma

kiran331
Builder

I tried blacklist3 = EventCode="4688" New_Process_Name="C:\Program Files\SplunkUniversalForwarder\bin\*", it dint worked

0 Karma

adonio
Ultra Champion

you are missing a "\" at the end after bin\
there supposed to be 2 of them \

0 Karma

adonio
Ultra Champion

i think its better to disable the monitoring of regmon if possible
if you want to filter events, start here:
http://docs.splunk.com/Documentation/Splunk/6.6.2/Forwarding/Routeandfilterdatad
hope it helps

0 Karma

kiran331
Builder

Hi Adonio,

I tried

blacklist3 = EventCode="4688" Message="New Process Name: (?i)^(C:\Program Files\Splunk(?:UniversalForwarder)?\bin\(?:btool|splunkd|splunk|splunk-(?:MonitorNoHandle|admon|netmon|perfmon|powershell|regmon|winevtlog|winhostinfo|winprintmon|wmi)).exe)" in inputs.conf, its not working. Is there anything I have to change in it.

0 Karma
Get Updates on the Splunk Community!

Introducing the Splunk Community Dashboard Challenge!

Welcome to Splunk Community Dashboard Challenge! This is your chance to showcase your skills in creating ...

Built-in Service Level Objectives Management to Bridge the Gap Between Service & ...

Wednesday, May 29, 2024  |  11AM PST / 2PM ESTRegister now and join us to learn more about how you can ...

Get Your Exclusive Splunk Certified Cybersecurity Defense Engineer Certification at ...

We’re excited to announce a new Splunk certification exam being released at .conf24! If you’re headed to Vegas ...