Fatima refers to a chastisement through Islam.
The prophet Daniel wrote that the son of perdition will drag into apostasy those who violate God's covenant
Daniel 11:32
And such as deal wickedly against the covenant shall deceitfully dissemble (He shall seduce with flattery* those who violate the covenant): but the people that know their God shall prevail and succeed.
(32) Such as do wickedly.--In these verses are traced the effects of the apostasy upon the people of God. These persons have been already spoken of in Daniel 11:30. They had begun with indifference to true religion, they have now become intolerant of it.
Corrupt.--Literally, make profane. On the Hebrew notion of profanity, see Cheyne's Isaiah, vol. 1, p. 3. These persons have now become as the heathen.
*pervert by flatteries,
*ruin those,
*With flattery he will corrupt those,
*He will lead them to do what is evil.
*Those who do wickedly against the covenant he shall corrupt with flattery
In the Treatise on True Devotion to the Blessed Virgin, St. Louis de Montfort teaches us that the Virgin Mary will lead us in the fight against Satan, to battle against the army of the Antichrist; formed by heretics, apostates, wicked, idolaters and Mohammedans. Saint Louis adds that in these latter times, the Blessed Virgin will raise up great saints, who will extend the empire of Jesus Christ over “the impious, the idolaters and the Muslims.”