If I'm doing real malware execution and analysis, I would one- way transfer the relevant file(s) to my sandbox and disable any backward connectivity before execution, but I still need a reasonably simple way of getting files to (suspicious files, etc) and from (resulting logs, registry changes, pcap, etc) the malware sandbox. Ive kinda solved this already using a number of tools outside my work host, but just in the off situations where this is necessary I want to have a template VM prepped in advance.