Tuesday, June 21, 2011

Wireless with a Hole !!!


Do you always pay for your internet usage? And do you think that you pay more than what you use? If the answer is Yes, there we need to find a way where we can use internet but do not pay for that. There are at times we know that most of the public places in today’s date are equipped with the complimentary wireless and WIFI functionality. They give you access to internet for some time and then you have to go for buying a voucher. What if we can have something, which can give an unlimited access to the internet without paying a penny for that.
Whenever I visit UAE, I make sure that I don’t have to pay for my internet connectivity and by god’s grace, I haven’t paid for my access till date . The concept is very simple; I often keep my laptop in a position or a place which is open, where I can get as many access points while I scan the surroundings. When I get a good amount of access points in my laptop, I go for filtering them to search for those who are unsecured in nature or WPA enabled. I end up getting some of them.
Then I try to connect randomly to all those access points, this seems to be easy, but the real challenge is when there is a possibility of a Honey pot running at the other end and the person can easily detect your location using your IP address/ MAC Address. So it is always recommended, to hide the IP and MAC addresses from getting broadcast.
You need to be very carefull while doing this, sometimes applications stop working after changing the IP or MAC Address, so to prevent this, it is always recommended, to apply an alias on your physical and logical addresses and then plan for something like this.
If you are lucky enough, then you can get a successful connection of the target access point and you can browse internet endlessly, the fun part is, all wireless controllers saves the IP addresses in its buffer and the next time, any session initiated by those IP addresses are not authenticated. So since you have already established a connection, the next time you can directly connect the access point and start a session.
One cannot guarantee the speed you will be getting from this. The speed will depend on the no. of connections on the device and also the burst rate of the device.  But believe me, I always got a more than decent speed, although it was on wireless.
You might be thinking, why I am not talking about cracking a wireless network?
The answer is very simple, most of the cracking tools needs a Wireless Card supporting a specific driver called “WinPcap”. This driver enables us to probe into the access point and get the passwords or keys. The main problem is , our standard laptop models do not have the card compatible to this driver…. I have checked this on my laptop and almost crashed the card..:)
Have a clear an good intention while trying this ….:)