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Yevsei Drozdov
Yevsei Drozdov

Complete Tools For WEP and WPA Wireless Cracking


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Complete Tools For WEP and WPA Wireless Cracking




Wireless networks are everywhere, but not all of them are secure. If you want to test the security of your own Wi-Fi network, or hack into someone else's, you need the right tools. In this article, we will introduce some of the most popular and effective tools for cracking WEP and WPA encryption on wireless networks.




Complete Tools For WEP and WPA Wireless Cracking



WEP and WPA are two of the most common security protocols used to protect Wi-Fi networks. WEP stands for Wired Equivalent Privacy, and it was introduced in 1997 as part of the original 802.11 standard. However, WEP has many flaws and weaknesses that make it easy to crack. WPA stands for Wi-Fi Protected Access, and it was introduced in 2003 as a replacement for WEP. WPA is more secure than WEP, but it can still be cracked with enough time and computing power.


To crack WEP and WPA encryption, you need three steps: sniffing, parsing, and attacking. Sniffing is the process of capturing packets from the wireless network. Parsing is the process of analyzing the captured packets to find the information needed for the attack. Attacking is the process of using brute-force or dictionary methods to guess the password or key of the network.


There are many tools that can help you with these steps, but some of the most popular and effective ones are:


  • Aircrack-ng: A suite of tools that includes airodump-ng (for sniffing), aircrack-ng (for cracking), and aireplay-ng (for injecting packets). Aircrack-ng can crack WEP, WPA, and WPA2 encryption using various techniques.



  • Wireshark: A network protocol analyzer that can capture and display packets from any network interface. Wireshark can help you with parsing and analyzing the packets to find useful information.



  • Hashcat: A powerful password recovery tool that can crack hashes using various algorithms and modes. Hashcat can crack WPA and WPA2 passwords using GPU acceleration.



  • Reaver: A tool that exploits a vulnerability in the Wi-Fi Protected Setup (WPS) feature of some routers. Reaver can crack WPA and WPA2 passwords by brute-forcing the WPS PIN.



These are just some of the tools that you can use for wireless hacking. There are many more tools available online, but you should always use them responsibly and ethically. Remember that hacking into someone else's network without permission is illegal and unethical.


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How to use Aircrack-ng? Now that we have learned the basics of wireless hacking, let's see how to use Aircrack-ng to crack WEP and WPA passwords. We will use a Linux system with a compatible wireless card and Aircrack-ng installed.


Cracking WEP encryption




WEP encryption is very weak and can be cracked in minutes with Aircrack-ng. The main steps are:


  • Put your wireless card in monitor mode with the command: sudo airmon-ng start wlan0, where wlan0 is your wireless interface name. This will create a new interface called wlan0mon.



  • Scan for nearby WEP networks with the command: sudo airodump-ng wlan0mon. This will show you the BSSID, channel, ESSID, and other information of the networks.



  • Choose a target network and note its BSSID and channel. Then start capturing packets from that network with the command: sudo airodump-ng -c channel -w output --bssid BSSID wlan0mon, where channel and BSSID are the values of your target network, and output is the name of the file where the captured packets will be saved.



  • Inject packets into the target network to generate more traffic and speed up the cracking process. You can use another terminal window and run the command: sudo aireplay-ng -3 -b BSSID wlan0mon, where BSSID is the value of your target network. This will perform an ARP request replay attack.



  • Wait until you have enough data (at least 10,000 IVs) in the output file. Then run the command: sudo aircrack-ng output*.cap, where output is the name of the file where the captured packets are saved. This will start cracking the WEP key using statistical analysis.



  • If successful, Aircrack-ng will show you the WEP key in hexadecimal format. You can convert it to ASCII format using an online tool or by running the command: echo "hex key" xxd -r -p, where hex key is the value of the WEP key.



Cracking WPA encryption




WPA encryption is more secure than WEP, but it can still be cracked with Aircrack-ng using a dictionary attack or a brute-force attack. The main steps are:


  • Put your wireless card in monitor mode with the command: sudo airmon-ng start wlan0, where wlan0 is your wireless interface name. This will create a new interface called wlan0mon.



  • Scan for nearby WPA networks with the command: sudo airodump-ng wlan0mon. This will show you the BSSID, channel, ESSID, and other information of the networks.



  • Choose a target network and note its BSSID and channel. Then start capturing packets from that network with the command: sudo airodump-ng -c channel -w output --bssid BSSID wlan0mon, where channel and BSSID are the values of your target network, and output is the name of the file where the captured packets will be saved.



  • Deauthenticate a connected client from the target network to force a reconnection and capture the four-way handshake. You can use another terminal window and run the command: sudo aireplay-ng -0 1 -a BSSID -c CLIENT wlan0mon, where BSSID is the value of your target network, and CLIENT is the MAC address of a connected client. You can find this information in the output of airodump-ng.



  • Wait until you see a message saying "WPA handshake" in the output of airodump-ng. This means you have captured the four-way handshake in the output file.



  • Run the command: sudo aircrack-ng output*.cap -w wordlist, where output is the name of the file where the captured packets are saved, and wordlist is the name of a file containing possible passwords. This will start cracking the WPA password using a dictionary attack.



If successful, Aircrack-ng will show you e0e6b7cb5c


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