Building your malware analysis lab is a key point before playing with malware. Today, thanks to virtualization, it&#;x26;#;39;s convenient to play with snapshots in your lab. Start a new investigation from a clean snapshot and take some more when you reached a critical step. But, if you need to revert to a previous snapshot, all changes applied to the VM are... lost! Therefore, it&#;x26;#;39;s important to store important data outside the VM.