How to access data in a virtual machine?

Question

Virtualization

Hello! Does anyone know how to get data from the guest operating system, for example information about users through the capabilities of the hypervisor, that is, without implementing a network between the host and the guest. It is very interesting how the hypervisor communicates with guest OSes and what information it can get about them

Answer 1

The simplest thing is to read everything from the disk of the virtual machine, if it is not encrypted by means of the VM itself.
And the rest - depends on what you mean by the capabilities of the hypervisor.
If regular opportunities are meant - there is nothing for getting information from the VM.
If something else - in principle, the hypervisor has access to all the data that the VM works with, although it will not be technically easy to realize their extraction.

Answer 2

What is a hypervisor? What virtualization question?

Answer 3

As far as I know, not at all. At one time, I solved such a problem using libvirt to raise the machine and turn on the network, then SSH / telnet connection to the OS. Next is the matter of technology.