I didn’t think Mooselimbs believed in an anti-Christ. It would make no sense to believe in an anti-Christ since they don’t believe in the Christ or the need for one.
Christ = Messiah.
In Shia Islam, Messiah = Mahdi
Hope this will help: Islamic Extremists Are Trying to Hasten the Coming of the Mahdi
Also check out these pdf's:
FACT SHEET: The Iranian Leaderships Apocalyptic Beliefs
FACT SHEET: The Islamic States Apocalyptic Beliefs