You're looking for Clonebox, which is a bootable daily clone of your server:
https://www.bettercgi.com/clonebox/
A critical point to add to your list of requirements is that their MUST be multiple backups
from different points in time. That's critical because otherwise what happens is that the
bad guy wipes out your database 11:00 PM, then at midnight the system makes a backup
of the now empty database. Around 2:00 AM, when you discover the problem, you now
have an empty backup of an empty database - you're screwed. So you must maintain
several copies going back over time, in order to be able to use the last CORRECT copy.
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support@bettercgi.com ICQ 7208627
Strongbox - The next generation in site security
Throttlebox - The next generation in bandwidth control
Clonebox - Backup and disaster recovery on steroids