There is an vcenter 6.5 with "vCloud Director-1" extension installed.
It can be deinstalled via MOB: https://vcenter.local/mob/?moid=ExtensionManager&method=unregisterExtension
But after vcenter reboot, this extension is presented again!
How to deinstall it permanently?
lastHeartbeatTime of vCloud Director-1 extension is 2018-08-11T20:55:32.466999Z
Last boot time of vCenter host is 2008-08-11 21:33 (I rebooted vcenter immediately after vCloud Director-1 unregistering)