Udp2Raw

A Tunnel which Turns UDP Traffic into Encrypted UDP/FakeTCP/ICMP Traffic by using Raw Socket, helps you Bypass UDP FireWalls(or Unstable UDP Environment)

Source: https://github.com/wangyu-/udp2raw

How to extract files

Lets simulate an open UDP service

We can't exfiltrate directly, because the firewall is blocking

So in this case, we can use udp2raw to create a tunneling like the image below:

Diagram of the Usage

Open the server in the Target machine

Open the client in the attacker machine

We cant send files bigger than 1.8mb

Shadow extracted through the Tunneling

Wireshark Results