Grey Hat India

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If you use internet via a LAN medium, and the network administrator has imposed restrictions on your downloading/uploading speed, then READ ON-

This hack has been tried on Sify internet, Spectranet. I am sure it will work with any internet connection which uses a LAN topology to connect you to internet. [ This hack doesn't work for ADSL]

The principle: The Network admin binds your IP address to a MAC address and sets the speed limit. If the MAC address and IP Address is changed to that of someone who’s paying for the higher speed, you’ll get a speed jump.

When I tried this hack, I was subscribed to “ABC” internet, a local provider in the area. I was paying $ 20 a month for a slow 64 kbps connection. With this hack I could raise it to 512 kbps with no downloading restrictions imposed

1. I first used Angry IP Scanner to scan my subnet to find the Alive IP address in my local LAN.

1. I used some social engineering to find out which IP address was getting how much speed. I chose a local cyber cafe as my target , which used to close at 11 PM and open at 10 Am in the morning. The cybercafe’s IP address was 192.168.0.32 and MAC Address was AA:XX:XX:Xl . It’s obvious that the cyber cafe owner must have subscribed for a high speed line.
2. Around 11.15 PM i used to ping the cybercafe’s IP to find whether it’s using still open or not.
3. As soon as I find that its closed, I used the technique below to forge my MAC Address to that of the cybercafe
4. To confirm weather the MAC has been changed or not, I used to use ipconfig/all command in DOS.
5. Thereafter the only step that would remain is to change my IP adress to that of the CyberCafe’s server, 192.168.0.32 . In case you try this hack, do make sure weather the system of your prey is not connected to internet. Not doing so might result in an IP conflict which can alarm the Network Admins.
6. This will emulate your machine as that of the Cybercafe server, which luckily fools the Administrator Server to broadcast a speedier connection to you (say 512kbps or 2mbps).

If the above fails: In some cases your network provider might ask for a username password via a web-login interface. In that case you can use a sniffer ( CAIN, Wireshark) so as to sniff for the usernames and passwords.

The result in my case:

Changing MAC address in Windows

• Under Windows, the MAC address is stored in a registry key. To change a MAC address, find that key with `regedit` and change it. Of course, Microsoft keeps moving the location of the key around!

• Windows XP adds an option to change the MAC address on some network cards under the Advanced tab in the network adapter’s Properties menu.

• A much easier and more reliable method to change a MAC address under Windows is to use a software utility program designed to do this for you.

Macshift is a free utility that you can use to spoof your MAC address under Microsoft Windows.

You may also try SMAC

How to change a MAC address in MacOS

Instructions for changing the MAC address on a Macintosh can be found at MAC Spoofing on the Macintosh.

How to change a MAC address in FreeBSD

In FreeBSD, you can change your MAC address with the `ifconfig <interface> link <address>` command.

How to change a MAC address in Linux

Under Linux, you can change your MAC address with `ifconfig <interface> hw <class> <address>`, or you can use the GNU MAC Changer.

How to change a MAC address in Solaris

In Solaris, you can change the MAC address with the `ifconfig <interface> <ether> <address>` command.

How to change a MAC address in OpenBSD

OpenBSD does not, by default, allow you to change the MAC address. It is possible to change the MAC address under OpenBSD with sea.c.

How to change a MAC address in HP-UX

Under HP-UX, you can change the MAC address in SAM by selecting Networking and Communications, then selecting the interface, then Action, Modify, Advanced Options. HP-UX refers to the MAC address as the “station address”.

Do let me know in case you need any help with the same Thanks.