Netcat: Windows

On Server (listening):

If you’ve spent any time in Linux or macOS penetration testing or network debugging, you’ve likely heard the legendary praise for Netcat ( nc ). Often called the "Swiss Army knife of networking," it allows you to read, write, and relay data across network connections using the TCP or UDP protocol.

nc -l -p 5555 > received_file.txt On Client: netcat windows

Test-NetConnection google.com -Port 80 But for full data transfer and listening, Netcat still wins. Netcat is a double-edged sword. On one hand, it’s invaluable for debugging firewalls, testing services, and automating network tasks. On the other, it’s the go-to tool for establishing backdoors.

ncat [options] [target host] [port] Check your version: On Server (listening): If you’ve spent any time

nc 192.168.1.A 4444 Now type anything in either window – the other sees it instantly. Send a file from Windows Client to Windows Server:

nc -h 1. Test if a Port is Open (Port Scanning) Unlike Linux, Windows doesn’t have a native nc -zv . But you can do this: Netcat is a double-edged sword

nc -l -p 443