How to Download and Use Cowpatty 4.5 for WPA/WPA2 Cracking
Cowpatty is a tool that can help you audit the security of pre-shared keys (PSK) used in WiFi Protected Access (WPA) and WPA2 networks. It can perform a dictionary attack against a captured 4-way handshake to guess the PSK. In this article, we will show you how to download and use cowpatty 4.5 on Kali Linux.
cowpatty 4.5 download
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Step 1: Download Cowpatty 4.5
Cowpatty 4.5 is available as a source code package from SourceForge[^1^]. You can download it using the following command:
wget https://sourceforge.net/projects/cowpatty/files/cowpatty/4.5/cowpatty-4.5.tgz/download -O cowpatty-4.5.tgz
Alternatively, you can install cowpatty from the Kali Linux repository using the following command:
sudo apt install cowpatty
Step 2: Extract and Compile Cowpatty 4.5
If you downloaded the source code package, you need to extract and compile it before using it. To do that, use the following commands:
tar xvf cowpatty-4.5.tgz
cd cowpatty-4.5
make
This will create an executable file called cowpatty in the same directory.
Step 3: Capture a 4-way Handshake
To use cowpatty, you need to have a libpcap capture file that contains a 4-way handshake between a client and an access point (AP). You can use tools like airodump-ng or wireshark to capture such a file. For example, to capture a handshake for an AP with SSID \"test\" and BSSID \"00:11:22:33:44:55\", you can use the following command:
airodump-ng --bssid 00:11:22:33:44:55 --channel 6 --write test.cap wlan0mon
This will save the capture file as test.cap in the current directory. You can stop the capture after you see a message like \"WPA handshake: 00:11:22:33:44:55\" on the screen.
Step 4: Perform a Dictionary Attack with Cowpatty
Once you have a capture file with a handshake, you can use cowpatty to perform a dictionary attack against it. You need to have a dictionary file that contains possible passphrases for the PSK. You can use any wordlist file that you have or download one from online sources. For example, you can download the rockyou.txt wordlist from Kali Linux using the following command:
wget https://gitlab.com/kalilinux/packages/wordlists/-/raw/kali/master/rockyou.txt.gz
gunzip rockyou.txt.gz
To use cowpatty with the test.cap capture file and the rockyou.txt wordlist file, use the following command:
./cowpatty -f rockyou.txt -r test.cap -s test
This will try each passphrase in the wordlist file and compare it with the handshake in the capture file. If a match is found, it will display the PSK on the screen. For example, if the PSK is \"password123\", it will show something like this:
The PSK is \"password123\".
Conclusion
Cowpatty is a useful tool for auditing the security of WPA/WPA2 networks that use PSKs. It can help you identify weak or common passphrases that can be easily cracked by attackers. However, it is not very fast or efficient compared to other tools like hashcat or john. Therefore, you should use it as a last resort or for educational purposes only. c481cea774