Getting Data In

Best way to Filter Windows Events before Indexing?

kiran331
Builder

Hi

We're seeing may Events with EventCode 4624 and 4634 with Account_Name ending with $ sign. Is there any value for it in Security logs OR we can filter them Out?

0 Karma

sylbaea
Communicator

Account names ending with a $ are usually reloated to computer identities
https://msdn.microsoft.com/en-us/library/cc246064.aspx

From a security perspective, it is very important to keep related events along with standard user activity as there are many ways to act as the computer system once it has been compromised (psexec, etc.) If you filter those events, you will be partially blind when monitoring possible attacks.

0 Karma

maciep
Champion

I can't answer whether there is a need for them, but others do filter out these computer accounts:
https://answers.splunk.com/answers/303882/unable-to-blacklist-windows-events-with-regex-on-u.html

0 Karma
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