How to Spoof MAC address [Android,ios, Windows]

 If you'd like to know what spoofing attack is you can read about it here

Now to the fun part. 

Android
Things You will need Before You spoof Mac Address
- A Rooted Phone
-BusyBox
-Terminal app

Go to terminal App

Type su
Disable network
Type ifconfig “interface” down

See Your current Mac Address (Also Note it down)

:busybox iplink show eth0

Change the MAC address of the interface
ifconfig “interface” hw ether 01:02:03:04:05:06 
(replace it with mac address you want to spoof mac address of your phone )
Enable network
ifconfig “interface” up
Checking the MAC address
ifconfig “interface”
This Will Temporarily  spoof Your Mac address and willl change to original on next reboot.

Permanently Spoof mac address

-After your rooted head into terminal emulation type su and go into /data/misc/wifi
-Look for a file called nvram.txt
-Copy it to your sdcard and then to your cpu desktop open it with notepad and at the bottom of nvram.txt is the mac address
-This i was able to verify and test on android Citrus Ciena
-Edit that mac address and save it as nvram1.txt onto sdcard
-Now go back to data wifi misc and copy nvram.txt to nvram.bak
-Head into gui and then settings then wifi then turn on the wifi but don’t connect to any wifi
-turn off the wifi,switch back to terminal
-Copy the nvram1.txt to data misc wifi
-remove the original (make sure you got it backed up)
-Rename nvram1.txt to nvram.txt
-head back into gui and then settings then wifi
-Now for me it immediately stated unable to turn on wifi
-Ignore it and try to turn it on anyways
-When it turns on your newly edited mac address will take effect
-Connect to your AP
-NOW B4 REBOOTING YOU MUST CHANGE NVRAM BACK TO THE ORIGINAL!

FAQ
Where do I type in these commands in Android?
In a Terminal Emulator, it’s recommended you get JackPal’s Terminal Emulator or ConnectBot from the google market/playstore
What is “interface” in this tutorial? What should I use?
Replace the word “interface” by “wlan0″ or “eth0″ for example, the location of your network connection
ERROR “Can’t execute / start ifconfig on Android”
* Prefix the ifconfig command with busybox if just ifconfig doesn’t do anything
ERROR “SIOCSIFHWADDR: Cannot assign requested address” 
* probably indicates that the requested MAC address is not a unicast address. (To qualify as a unicast address the first byte must be even.)
ERROR “SIOCSIFHWADDR: Operation not supported”
Your device doesn’t support the operation, end of story.

IOS

Things Required to be Installed

Terminal(bigboss repo), http://apt.thebigboss.org/repofiles/cydia/
Activator(bigboss repo), http://apt.thebigboss.org/repofiles/cydia/
Sudo Mod (Recommended) or PWNSettings ,(my repo)http://zerobeat.myrepospace.com/
Command Alert(modmyi repo) http://apt.modmyi.com/Sudo Mod is modded to run sudo with no pass requirement for root privileges.

To install these packages via cydia
1.Tap Manage then sources
2.tap edit on the top right
3.Tap add on the top left
4.when the prompt appears replace http with
the repos above
5.search the packages listed above and install

How to Spoof mac address

-Make sure you remember the original MAC address of your iDevice (nav to settings-> General-> about-> Wifi-Address)

-In Activator (or command alert) setup a specific gesture to launch Command Alert Anywhere. I configured Command Alert to activate with a triple home button. This will become extremely useful when the mac is entered incorrectly and your stuck in Setup.app.

-Activate Command Alert

-Type in "sudo nvram wifiaddr=xx:xx:xx:xx:xx:xx" tap return then tap Execute Command. Next Reboot or shutdown the iDevice.

[xx:xx:xx:xx:xx:xx= spoof mac address ]

-After the reboot or the device turns on, the Setup.app should appear.Next confirm if the mac address changed successfully. To revert to original MAC address. Activate Command Alert and type "sudo nvram -b wifiaddr"

 Windows 

Step 1: go on Start >Control Panel >Network Connections, and right-click on the network connection you want to spoof MAC address for and select Properties. It will normally either be Local Area Connection or Wireless Network Connection.

If you are using Windows 7 or windows 8,you have to go to Control Panel, then Network and Internet, then Network and Sharing Center, and then Manage Network Connections.

Step 2: On the General tab, click the Configure button

Step 3: Now click on the Advanced tab and click on the “Locally Administered Address” property or the “Network Address” property(in windows 7 & windows8).

Step 4: By default, the “Not Present” value is selected. Go ahead and click on the Value radio button and enter in a new MAC address. The MAC address is a combination of 6 pairs of numbers and characters, i.e. 40-A2-D9-82-9F-F2. You should enter the spoof  MAC address without the dashes.

You can check that the MAC address has been changed by going to the command prompt and typing in IPCONFIG /ALL. Go ahead and restart the computer in order for the changes to take effect.