wifite – Mass Wifi WEP/WPA Key Cracking Tool

Found this really cool tool through another site.

Cool Stuff:

• sorts targets by power (in dB); cracks closest access points first
• automatically deauths clients of hidden networks to decloak SSIDs
• numerous filters to specify exactly what to attack (wep/wpa/both, above certain signal strengths, channels, etc)
• customizable settings (timeouts, packets/sec, channel, change mac address, etc)
• all WPA handshakes are backed up to wifite.py's current directory
• smart WPA deauthentication -- cycles between all clients and broadcast deauths
• stop any attack with Ctrl+C -- options: continue, move onto next target, skip to cracking, or exit
• switching WEP attack methods does not reset IVs
• SKA support (untested)
• displays session summary at exit; shows any cracked keys
• all passwords saved to log.txt
• built-in updater: "./wifite.py -upgrade" not automatic 

Note: this is for backtrack4

Hope you like it :)