Forum Discussion
OMS query for ad login and log offs
Hi,
In order to monitor security events you will need to deploy the Security & Audit solution. Keep in mind that since Ignite 2017 that solution is now part of Azure Security Center rather Log Analytics which means separate pricing. Azure Security Center uses Log Analytics platform for storing data. Once you deploy and configure Security & Audit solution there are two simple queries that you can use to see that data:
Logged off accounts:
SecurityEvent | where EventID == 4634 | sort by TimeGenerated desc
Logged on users
SecurityEvent | where EventID == 4624 | sort by TimeGenerated desc
These are single events and there are more additional events related to those. Sources:
https://docs.microsoft.com/en-us/windows/security/threat-protection/auditing/audit-logoff
https://docs.microsoft.com/en-us/windows/security/threat-protection/auditing/audit-logon
The Security & Audit solution contains some dashboards related to logins and logoff.
You also cannot gather security logs without actually using the Security & Audit solution.
Hope this helps!
Isn't it a bit outrageous to remove SecurityEvents from the Azure Log Analytics and force the customers to purchase another solution (Security & Audit) in order to centralize logging of security related events, I mean the customer can still do it with Application and System logs.
I;m surprised that this is not all or nothing - I can see a small set of security events (eg 4663, 4985), but in no way all of them, and definitely not the 'interesting' ones. Is this simply an oversight? (In fact, 4663 is causing severe per node overage and costing us money, so I'd like to stop them being processed. Only having access to the reporting side of things, I don't know if this is even possible).
Hi,
In ASC you have 4 options for setting which events are gathered.
- All Events
- Common
- Minimal
- None
Additionally on your windows servers you can configure your audit policy in order to log only certain security events. That way ASC will gather only those that are generated.
This is expensive as you are onboarding to Azure Security Center which has many other features besides just gathering security events.
Probably a daft question, but is security event ingestion and analysis from an on premise Windows server only possible with the Standard tier, or could I get away with the free Tier?
