Re:How to Crack a Wi-Fi Network's WEP Password with BackTrack
by ErrantX on Thursday July 02, 2009 @11:45AM
(#684571)
Not bad tutorial. It's nice to see she had trouble getting a result: all the vids and tutorials from the backroom hackers usually show it working perfectly each time - which in my experience never happens...
Some tips I've picked up from bitter experience
Always use wesside-ng tool to try it first. It's worth the 20 mins or more it can take for this to fail (because often it will work). Or for best use run it in tandem - your faffing about on the network only generates more traffic.
Use Backtrack 3. v4 is horrid and you cant easily install it onto HDD (which I consider essential for easy use).
Pick your wireless card carefully - it's really worth thinking about it hard. We use Ubiquiti cards which can cost up to $100 but are absolutely fantastic. We have gotten much longer range with these cards than any other. Avoid USB adaptors it usually confuses things.
Use a directional antenna: when your doing this in the same room as the router signal should be stonking. But through several walls and a car windscreen things tend to go very quiet :) A directional antenna (we use two 12x12 inch panels) will increase your sensitivity no end.
Spend time plotting the network. I have never got any of the GPS->Kismet->Map tools to work (gpsdump is the closest I got to working). In the end we now use handy little bluetooh GPS devices coupled with Kismet to drive round and plot data for a bit. Then transfer the data to a windows laptop and use KMS2KML to create actual Google Earth plot files. It's a bit of a pain but tends to be pretty accurate.
I've been playing with a way to grab data off of the kismet server and make the KML file automatically - but it's not so much of a pain for it to be worth the investment.
Some tips I've picked up from bitter experience
Always use wesside-ng tool to try it first. It's worth the 20 mins or more it can take for this to fail (because often it will work). Or for best use run it in tandem - your faffing about on the network only generates more traffic.
Use Backtrack 3. v4 is horrid and you cant easily install it onto HDD (which I consider essential for easy use).
Pick your wireless card carefully - it's really worth thinking about it hard. We use Ubiquiti cards which can cost up to $100 but are absolutely fantastic. We have gotten much longer range with these cards than any other. Avoid USB adaptors it usually confuses things.
Use a directional antenna: when your doing this in the same room as the router signal should be stonking. But through several walls and a car windscreen things tend to go very quiet :) A directional antenna (we use two 12x12 inch panels) will increase your sensitivity no end.
Spend time plotting the network. I have never got any of the GPS->Kismet->Map tools to work (gpsdump is the closest I got to working). In the end we now use handy little bluetooh GPS devices coupled with Kismet to drive round and plot data for a bit. Then transfer the data to a windows laptop and use KMS2KML to create actual Google Earth plot files. It's a bit of a pain but tends to be pretty accurate.
I've been playing with a way to grab data off of the kismet server and make the KML file automatically - but it's not so much of a pain for it to be worth the investment.