The Iranian thingy is called a 'Saeqeh' - Thunderbolt. See pictures here:
Saeqeh fighter planes tested successfully in Iran
And by the beard of the Prophet (may peace be upon him), may the infidels be struck down if they slander the glorious engineers of the Islamic Republic by suggesting that it is a rebuilt Northrop F-5! It is entirely indigenous!
(Or not.... they've even pinched the paint scheme from the Blue Angels...
)
S41