DNS Tunnels are fun for bypassing Wi-Fi restrictions and breaking out of networks. Today there are many defence options in place to detect or block DNS Tunnels. However, exfiltration of data via DNS is still very possible and continues to plague corporate environments. We will look at some unique and new ways to exfiltrate data via DNS. We’re not looking to get free internet here, we’re looking at how attackers can send sensitive data out of a company without being detected by the usual DNS tunnel detection mechanisms.