angelofsky1980
BlackHole Driver Specialist
As said by @Matrix10 there is no password for root account on BH / OBH images.If it is opened for world, of course, the password should be changed. But if I use it only in local network, it doesn't matter.
Some FTP/SCP clients needs always a password (any kind of text) because the client needs it but the server side on the box ignore it because the root password is not present.
Probably DCC (or any other similar tool) the first use set up the password for you and from now you MUST use password because is present and active.
Better idea is to learn to manage your box via standard FTP Client (FileZilla) and SSH (PuTTY docet) instead use DCC/VUCC or similar tools.