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RegEx in source user field for correlation

Hi, guys

Is there a way to use regex in source user field in correlation (SIEM 11.3)?

Let's say I need the correlation trigger every time when user name include "admin".

Not case sensitive and in any form like: admin, user_admin, domainadmin etc. 

is there a way to do it or some workaround?

thank you in advance

 

3 Replies

Re: RegEx in source user field for correlation

SteelRatReport,

Currently there is not a way to do this you could submit an idea to see this in the future. However, as a work around you could create a Watchlist with all variations of the Source User name you are looking to collect. 

 

Thank You,
Eric

Re: RegEx in source user field for correlation

Eric, hi

 

unfortunately, it's a dynamic list: new users can be added frequently.

the only rule is to include some specific part into username.

 

Reliable Contributor David1111
Reliable Contributor
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Message 4 of 4

Re: RegEx in source user field for correlation

Hi @SteelRat 

in the correaltion rule GUI you can't use the REGEX for Source User.

but you could do a work arround.

open up a Dynamic Watchlist > serch on - ESM String >

REGEX = (?i).*(Admin|User\_Admin|DomainAdmin).*

Value = Source User

After configuring the watchlist go to the Correlation Rule GUI

and configure the Source User field to point to the above Watchlist.

 

Best Regards👍👍👍

David.

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