Wireless WEP Cracking using BackTrack3

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	Wireless WEP Cracking using BackTrack3

jarek69

7-14-2009 11:49 AM

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tags:

wep, internat, network, wireless, iwconfig, backtrack, back, track, 3, backtrack3

jarek69 says:

Notes on how to crack a WEP encrypted wireless link but also hints on how to use the "iwconfig" command to connect to it in BackTrack 3

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/a8f5df8a-8295-4e56-84ca-754c4698deac/90D84C29-574B-4A44-86B2-E5D9B02D4D4A/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://lifehacker.com/5309695/wep-cracking-redux-beyond-the-command-line" href="http://lifehacker.com/5309695/wep-cracking-redux-beyond-the-command-line" style="font-size: 11px;">lifehacker.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://lifehacker.com/5309695/wep-cracking-redux-beyond-the-command-line"><H1><A class="top" href="http://lifehacker.com/5309695/wep-cracking-redux-beyond-the-command-line" linkindex="35">WEP Cracking Redux: Beyond the Command Line</A></H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://lifehacker.com/5309695/wep-cracking-redux-beyond-the-command-line"><B>SpoonWep in BackTrack 3 (booted on a PC or Mac or in VMware)</B></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://lifehacker.com/5309695/wep-cracking-redux-beyond-the-command-line"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/lifehacker.com/img/2990850F-38EC-40D5-A04F-D4A6E8B86B82" alt="" /></div></blockquote><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content6.clipmarks.com/images/clip-icon.gif" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://wirelessdefence.org/Contents/LinuxWirelessCommands.htm" href="http://wirelessdefence.org/Contents/LinuxWirelessCommands.htm" style="font-size: 11px;">wirelessdefence.org</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://wirelessdefence.org/Contents/LinuxWirelessCommands.htm"><H1><U>Useful Linux Wireless Commands</U></H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://wirelessdefence.org/Contents/LinuxWirelessCommands.htm"><H1><A name="Connecting to WLAN (DHCP)">
<FONT color="#2271a0">Connecting to an OPEN / WEP WLAN (DHCP)</FONT></A></H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://wirelessdefence.org/Contents/LinuxWirelessCommands.htm"><P align="left">Note: replace [interface] with your 
interface name as required (e.g. eth1, wlan0, ath0 etc.)</p> <P align="left"> </p> <P align="left"><B>iwconfig [interface] 
mode managed key [WEP key] </B>(128 bit WEP use 26 hex characters, 64 bit WEP 
uses 10)</p> <P align="left"> </p> <P align="left"> </p> <P align="left"><B>iwconfig essid 
"[ESSID]" </B>(Specify ESSID for the WLAN)</p> <P align="left"> </p> <P align="left"> </p> <P align="left"><B>dhclient [interface]
</B>(to receive an IP address, netmask, DNS server and default gateway from the Access 
Point)</p> <P align="left"> </p> <P align="left"> </p> <P align="left"><B>ping www.bbc.co.uk 
</B>(if you receive a reply you have access)</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://wirelessdefence.org/Contents/LinuxWirelessCommands.htm"><H1>
<A name="Connecting to WLAN (Manual IP Setup)"><FONT color="#2271a0">Connecting to an OPEN / WEP WLAN (Manual IP 
Setup)</FONT></A></H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://wirelessdefence.org/Contents/LinuxWirelessCommands.htm"><P align="left">It may be necessary to 
run some packet capture software (e.g. Ethereal) to determine the IP addresses 
of both the Default Gateway and DNS servers.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/90D84C29-574B-4A44-86B2-E5D9B02D4D4A/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>