We just swapped our old and powerful Win10 workstation with a new 20core heavy-duty machine.
While migrating all services, we also migrated SYNOLOGY Cloud Station and the Sync thereof.
All of a sudden we were constantly notified by Windows 10 Virus Defender that we had a virus. Bing, bing, bing, bing …. (like Trump)
It was almost every second that we were notified of these virus threats (Zbevdo.B), so even opening up the details of the threat itself was impossible.
We figured out, that it happened during the sync process of cloud Station drive and the source was the Working directory of Cloud Station
C:/users/####/CloudStation/.SynologyWorkingDirectory
We researched a long time but could only find one effective solution:
The Synology support recommends to add the relevant folder (.SynologyWorkingDirectory) to the exception list of the virus scanner.
And voilà no more annoying bings and the proof that the Synology sync protocol looks like a virus to Windows Defender.