DNSExfiltratorについて、ここに記述してください。

DNSExfiltrator allows for transfering (exfiltrate) a file over a DNS request covert channel. 

This is basically a data leak testing tool allowing to exfiltrate data over a covert channel.

DNSExfiltrator has two sides:

    The server side, coming as a single python script (dnsexfiltrator.py), which acts as a custom DNS server, receiving the file

    The client side (victim's side), which comes in three flavors: