Something like dnscat2 would ultimately be better in my opinion. Have it connect once to get the disk key, decrypt, and end the process. Then have your device d

Something like dnscat2 would ultimately be better in my opinion. Have it connect once to get the disk key, decrypt, and end the process. Then have your device do it's thing, and once a condition is met, spin it back up, transmit the data (using small packet sizes and very large delays to possibly avoid IDS) and exfiltrate what's needed.