For me the problem turned out to have two components.
First there was a corrupted config file for the tomcat server in DataStore: C:\Program Files\ArcGIS\DataStore\framework\runtime\tomcat\conf\server.xml ESRI Tech support helped track this down. This prevented the embedded postgres from starting. This is a generic server conf file, you can grab a clean one from a fresh install or another datastore machine of the same version without Crowdstrike installed (what I did).
And second, the Crowdstrike “C-00000291*.sys” files needed to be deleted. Once I deleted that and restarted, port 2443 opened up. In Azure we had to take a snashot of the datastore's OS drive, make a disk from it, and mout it to antoher VM. Then delete the “C-00000291*.sys” files from it. Then detach the modified OS disk, and swap it back into the failed datastore VM.
My VM backup from 7/18 was corrupted (probably by Crowdstrike), so unless we fixed it, we would lose a day of fieldwork and editing.
I hope this helps you out. We all had a rough day yesterday.
-Matt