NetCut operates using a technique called ARP Cache Poisoning or ARP Spoofing. In a typical local network, devices use the Address Resolution Protocol to map IP addresses to physical MAC addresses. NetCut sends forged ARP responses to the router and the target device. By doing this, it convinces the target that the attacker's machine is the router and convinces the router that the attacker's machine is the target. Once this man-in-the-middle position is established, the attacker can choose to drop the packets, effectively cutting the target's internet connection. Why Use Kali Linux Instead of NetCut?
To cut the connection, you must tell the target that you are the router. Unlike a Man-in-the-Middle attack where you enable IP forwarding, to "cut" the net, you keep IP forwarding disabled. sudo arpspoof -i [interface] -t [target_ip] [gateway_ip] Example: sudo arpspoof -i wlan0 -t 192.168.1.5 192.168.1.1 Method 2: Using Bettercap (The Modern Standard)
You can manually map the router's MAC address to its IP address so your computer ignores forged ARP packets. sudo arp -s [gateway_ip] [gateway_mac] netcut kali linux
Install Arpwatch to monitor ethernet/IP address pairings. It will alert you the moment it detects a "flip-flop" in MAC addresses, which usually indicates an ongoing attack.
set arp.spoof.targets 192.168.1.5 arp.spoof on By default, if you do not handle the packets, the target will lose internet access. You can view the status of all targets by typing net.show . Defending Against NetCut Attacks NetCut operates using a technique called ARP Cache
NetCut is a popular network management tool often used to identify and disconnect devices from a local area network. While it is natively designed for Windows and Android, security researchers and penetration testers frequently use its core concepts within Kali Linux. This article explores how to achieve NetCut-like functionality on Kali Linux using advanced tools like Arpspoof and Bettercap. Understanding the Mechanism: ARP Spoofing
While a VPN won't stop the ARP spoofing itself, it can sometimes maintain a tunnel that makes it harder for simple "cutting" tools to fully disrupt encrypted traffic, though the local link may still remain unstable. Legal and Ethical Warning By doing this, it convinces the target that
Open your terminal and ensure you have the necessary tools: sudo apt update && sudo apt install dsniff -y 2. Identify the Targets