It's a "modified" iOS/IPSW that has been tweaked so that people can get iOS 6 on older devices that normally cannot use that iOS. A carrier unlock and jail breaking (i.e. Cydia) usually accompanies the IPSW.
However, since whited00r is a violation of Apple's terms of service and EULA, we cannot allow any further discussion here. So, I'll close this thread. Thanks for your understanding.
Marilyn