MAC Address Changer
Project Homepage:
http://www.codeproject.com/tools/MacIdChanger.asp
"A freeware program (with source
code) that allows you to change the MAC ID of your network adapter."
-codeproject.com
Many of the organisations we have
come across on penetration testing tasks are lulled into the false sense of
security that if they have WEP and MAC address filters set up on their
Access Points they are secure. They are sadly mistaken; WEP is trivial to
break and MAC address filters are even easier to get round.
To circumvent MAC address filters we
first need to crack the encryption (whether it be WEP, WPA or WPA2), then we
need to sniff the WLAN for a valid client MAC address. Once we have the
valid client MAC address we wait for this valid client to leave the WLAN, assume
it's MAC (via
MAC Address Changer) and we are on the network.
MAC Address Changer is just so simple
to use, it's free and weighs in at only 150kb. Using the tool is as
simple as choosing your desired network interface from the drop down box,
entering a new MAC address, then hit Change MAC ID and you're done!
STEP 1:
Our original MAC address is
00:20:A6:54:3E:ED
STEP 2:
We change our MAC address to
00:20:A6:45:23:E1
STEP 3:
To reset back to our original MAC
simply hit the RESET MAC ID button
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