Cortex XDR Generate Alert when Device is Online

[tc0222]

There's many situations where it would be convenient to receive a notification when a device is online.  We often run into this when a device is isolated and we are  unable to contact a user.  Since there is no native ability to trigger an alert or notification I had an idea to run a script on an endpoint that will create a file and then create an alert based off of that file creation that will in turn fire an email. That seems like it would work because the script will run when the endpoint is online and the file creation event is something that can trigger an alert, which will fire an email through Automations. 

The part that is the issue is that Cortex does not seem to log file events from itself.  Has anyone tried something like this before?  My next step is to try to call another program to create the file to see if an event is logged.  I could also try generating network traffic also.

[aspatil]

Hello @tc0222 ,

Thank you for writing to Live Community.

This seems to be an extraordinary use case. Do let us know if you find something or need any assistance.

Regards.

[tc0222]

Just a follow up to this older post, we did end up creating a dataset with the devices we wanted alerts for when they were online.  Then we used this query to create a correlation rule:

dataset = endpoints
| join (dataset = [watchlist dataset]) as E E.name = endpoint_name
| filter endpoint_status = ENUM.CONNECTED

This seems to be working as desired. 

[Remo]

That's a great solution for this use case. I think your not the only one with this "problem". Thanks for sharing 😊

[KingstonGray]

Thank you so much for the information, your help is appreciated.