Dump Virtual Box Memory

A quick reminder of one of the ways of how to dump memory of a VM running on VirtualBox in Linux environment.

List Available VMs

cd "C:\Program Files\Oracle\VirtualBox\"
.\VBoxManage.exe list vms
‚Äč
...
"win1002 debugee" {5f176ebb-a0cc-4dc7-9c6f-988fcbcca867}
...

Enable Debug Mode

linux host
[email protected]~: virtualbox --startvm 'yourVMName or VM UUID' --dbg

Dump VM Memory

Launch the VirtualBox debug console by navigating to "Debug" menu an select "Command Line":

Once you select "Command Line", you will be presented with a console that looks like this:

memory dump will be a raw file dumped to /home/youruser directory

To create a memory dump, issue the below command (also highlighted in the above graphic):

VBoxDbg> .pgmphystofile 'w7-nc-shell.bin'

Persistence

If you want the debug options to be always available, you can:

  • export VBOX_GUI_DBG_ENABLED=true before launching the VM or

  • put export VBOX_GUI_DBG_ENABLED=true in your .bashrc or /etc/environment