Be careful looking for miracles. The antichrist (instead of Christ) will be given the power to perform miracles, even calling fire down from heaven.
The actual text seems to be what our Father would say. I don't think Satan would criticize weak priests and call on us to ignore them, because he built them. I don't think Satan would inspire one of his disciples to warn us about his lies. I asked myself if this is something G-d or Satan would inspire. I don't think it would be Satan.
But, the text could have been made up by pretty much any Bible believing Christian who watches the news, reads the Bible, and keeps up on current events. And even if they did just make it up, they might truly believe it was inspired.
I agree with FennRx that the office of the papacy is a usurpation.