Mohammad,
We use sysmaster for over 2 years now and completely agreed on your complaints.
The only thing that i dont understand is that how it get it hacked while sysmaster is the only one knows about the root password and they dont release this information to all buyers or users.
anyhow, we can offer you a SLA for your VM via our 24/7 support.
if you are interested send me email jaimemallari@sbcglobal.net
We can restore your VM for minimal cost.