Antichrist as the mahdi

Can anyone confirm wether this hadith is sahih or not, if so wouldn't it be very similar to the 7 year covenant of the antichrist with the Jews that's mentioned in Daniel 9:27 "4.5 Al- Mahdi’s Treaty With Romans According to various Islamic theological sources, al-Mahdi is said to be one who will initiate Islam’s fourth and final treaty between the “Romans” and the Muslims. Al-Mahdi will make this treaty for a period of seven years! In a Hadith, Prophet Muhammad (pbuh) said: “There will be four peace agreements between you and the Romans. The fourth will be mediated through a person who will be from the progeny of Hazrat Aaron (the brother of Moses) and will be upheld for seven years. The people asked, “O Prophet Muhammad (peace be upon him), who will be the Imam (leader) of the people at that time?” The Prophet said: “He will be from my progeny and will be exactly forty years of age. His face will shine like a star” (Tabarani, as related by Hadrat Abu Umamah, as quoted by Zubair Ali,2004, p. 43).It appears that the period of this seven year peace agreement will likewise be the period of the Mahdi’s reign."