Do you want to test your network security? It used to be that you needed a desktop OS such as Windows or Linux installed on a computer with a specific wireless network card. Now, however, you can also use certain Android devices to scan and crack wireless networks. These tools are available for free as long as your device is compatible. Hacking routers without permission is illegal. These steps are provided to test the security of your own network.
Method 1 WEP Routers
Root a compatible device. Not every Android phone or tablet will be able to crack a WPS PIN. The device must have a Broadcom bcm4329 or bcm4330 wireless chipset and must be rooted. The Cyanogen ROM will provide the best chance of success. Some of the known supported devices include:
Download and install bcmon. This tool enables Monitor Mode on your Broadcom chipset, which is essential for being able to crack the PIN. The bcmon APK file is available for free from the bcmon page on the Google Code website. To install an APK file, you will need to allow installation from unknown sources in your Security menu.
Run bcmon. After installing the APK file, run the app. If prompted, install the firmware and tools. Tap the "Enable Monitor Mode" option. If the app crashes, open it and try again. If it fails for the third time, your device is most likely not supported. Your device must be rooted in order to run bcmon.
Tap "Run bcmon terminal". This will launch a terminal similar to most Linux terminals. Type airodump-ng and tap the Enter button. Air dump will load, and you will be taken to the command prompt again. Type airodump-ng wlan0 and tap the Enter button.
Identify the access point you want to crack. You will see a list of available access points. You must select an access point that is using WEP encryption.
Note the MAC address that appears. This is the MAC address for the router. Make sure that you have the right one if there are multiple routers listed. Jot this MAC address down. Also note the Channel that the access point is broadcasting on.
- Replace channel# with the channel number the access point is broadcasting on (e.g 6)
- Replace MAC address with the MAC address of the router (e.g 00:0a:95:9d:68:16)
- Keep scanning until you reach at least 20,000-30,000 packets.
Crack the password. Once you have a suitable number of packets, you can start attempting to crack the password. Return to the terminal and type aircrack-ng output*.cap and tap Enter.
- When you enter the key, enter it without the ":". For example, if the key was 12:34:56:78:90, you would enter 1234567890.
Method 2 WPA2 WPS Routers
- Nexus 7
- Galaxy Ace/S1/S2/S3
- Nexus One
- Desire HD
![Image titled Hack Wi Fi Using Android Step 2](https://www.wikihow.com/images/thumb/9/9d/Hack-Wi-Fi-Using-Android-Step-2-Version-5.jpg/aid4062644-v4-728px-Hack-Wi-Fi-Using-Android-Step-2-Version-5.jpg.webp)
- To install an APK file, you will need to allow installation from unknown sources in your Security menu.
Run bcmon. After installing the APK file, run the app. If prompted, install the firmware and tools. Tap the "Enable Monitor Mode" option. If the app crashes, open it and try again. If it fails for the third time, your device is most likely not supported. Your device must be rooted in order to run bcmon.
Download and install Reaver. Reaver is a program developed to crack the WPS PIN in order to retrieve the WPA2 passphrase. The Re aver APK can be downloaded from the developers' thread on the XDA-developers forums.
Launch Reaver. Tap the Reaver for Android icon in your App drawer. After confirming that you are not using it for illegal purposes, Re aver will scan for available access points. Tap the access point you want to crack to continue.
- You may need to verify Monitor Mode before proceeding. If this is the case, bcmon will open again.
- The access point you select must accept WPS authentication. Not all routers support this.
Verify your settings. In most cases, you can leave the settings that appear at their default. Make sure that the "Automatic advanced settings" box is checked.
Start the cracking process. Tap the "Start attack" button at the bottom of the Re aver Settings menu. The monitor will open, and you will see the results of the ongoing crack displayed. Cracking WPS can take anywhere from 2-10+ hours to complete, and it is not always successful.
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