I want to demonstrate an attacking scenario in which DNS tunneling is used to get information out of a protected network. There is the compromised host behind the firewall, at which the client is installed and it needs to send a file over the DNS tunneled connection to a server controlled by the attacker.
I have set up the DNS tunneling using DNSCat2. I can connect the client to the server and interact, I even have shell.
What I want is to transfer a file from the victim host to the server using the DNS tunnel only.
I cannot seem to find this functionality*, is there any way to accomplish it?
* EDIT: RTFM!