REGEX in blacklist doesn't work as intended

[osakachan]

Hello folks,

I encountered a problem when trying to filter events from WinEventLog and EventCode 4662.  When I use the next regex in a tester or in a SPL with a data set unfiltered, it works fine. But using it in a blacklist only allows a fraction of the messages when "Default Property Set" is in the first row after Properties.

blacklist9 = EventCode="4662" Message="(Tipo\sde\sobjeto:(?!\s*groupPolicyContainer))[\s\S]*(Propiedades:(?![\s\S]*Default Property Set))"

I tried some changes to the regex but I do not find a solution for this. Thanks for your time.

[venkatasri]

@osakachan  Can you check are you following allowed regex its little different from PCRE- inputs.conf - Splunk Documentation

[codebuilder]

Have you tried using erex to help build your regex? It's a hidden gem, and extremely useful.

https://docs.splunk.com/Documentation/Splunk/8.2.1/SearchReference/Erex