To do this pentest, you can have 2 packets: Download impacket: link here Download icmpsh: link here Virtual Machine: + Kali Linux 2018.2: 192.168.255.148 + Windows 7 32bit: 192.168.255.146 Firstly, you must copy 2 files into Kali Linux machine and un-compress 2 files. And after that, installing impacket in Kali Linux machine: Run this below command: For Windows 7 machine: And for Kali Linux machine: Supposedly I send ping with backdoor packet ... Copy file icmpsh.exe in a folder in Kali Linux machine into Windows 7. And run this command: Wow, the result: Detecting backdoors: A lot of packets are sent from victim to hacker. See you soon when I find out a subject attract anyone :)