I'm looking for any information regarding how secure an encrypted Linux file system is when contained in a VirtualBox virtual drive on a Windows host? Specifically I'm looking for answers to the following questions:
- Does the fact it is hosted as a guest system expose the encrypted data to any new attack vectors?
- Aside from the threat of key loggers on the Host OS, malware etc., when the virtual machine is turned on is there the threat of a rogue host process accessing the virtual machine's file system on the fly?
- When both the Host and Guest OSes are turned off and the data is at rest on a storage device, is it any easier/harder to retrieve the encrypted file system?