CathInfo.com

Congratulations.  You now hold the Protestant doctrine of indefectibility.  
The Catholic doctrine, which your Protestant forefathers rejected, is that "the gates of hell shall not prevail against the Church," and by "Church," is meant the a visible, juridical institution that has existed since the days of the apostles.  
You better study the Catholic doctrine on indefectibility pronto, before you become hardened in yet another heresy.

I quoted the Council of Trent above. Did you read that? That's the Magisterium of the Church. I don't care about being name-called protestant. But you call the Council of Trent protestant.

The point is, the Church Fathers described the antichrist as both a particular man AND as evil ideals or wordly lusts (i.e. the "spirit of antichrist").  You deny the former and only accept the latter.  That's wrong.  It's both.

Antichrist will not only deceive many, he will deceive virtually all but very few. "And when the scattering of the band [manus populi] of the holy people shall be accomplished, all these things shall be finished." (Dan 12,7) Only a scattered handful [manus populi] of faithful will be left. I think, one should not imagine that antichrist orders masses to literally kneel in front of him. Who would be deceived if he did that?

In Daniel 12,4 and 12,9 we read, that the prophecy is sealed. "But thou, O Daniel, shut up the words, and seal the book, even to the time appointed: many shall pass over, and knowledge shall be manifold." "And he said: Go, Daniel, because the words are shut up, and sealed until the appointed time." There will be many interpretations, but it will not be understood until the time when it happens. In Apocalypse 10, apparently the same angle has St. John eat the book (of Daniel?) and prophesize again, that "the Gentiles shall tread the holy city under foot".

No wonder, that the Church has not decreed and defined the details about the time of tribulation before Our Lord returns.

Conclusio: Watch out!