The spirit of antichrist (anti-messiah) is extremely subtle and very, very hard to discern. It masquerades as the Holy Spirit (Ruach HaKodesh), providing miraculous confirmations and demonstrations of its assumed divine origin. Yet, it is not the Holy Spirit at all, rather, a copycat that flaunts its power, provides false demonic spiritual gifts, and leads the sheep astray in droves. The real Holy Spirit does indeed give spiritual gifts to the true believers, but they function differently.
True spiritual gifts never contradict the manner of conduct described in Scripture. They don’t puff up or artificially elevate people to a demigod status, which in turn is idolized by those around them. Rather, the true spiritual gifts from the real Holy Spirit bring about a humble and meek attitude to the those facilitating the gifts, while at the same time lifting up all who surround them. The true Holy Spirit works through the believers who hunger and thirst for righteousness, who are pure in heart, and who are peacemakers. These are the ones who are and will continue to be persecuted for the sake of righteousness, for theirs is the kingdom of heaven. 
The real Holy Spirit leads us and guides us to serve others, which fulfills the whole of Torah.  The real Holy Spirit teaches us to deny the carnal nature, who’s fruit include jealousy and strife  , pride, and causes one to be puffed up with man’s understanding and wisdom. The real Holy Spirit works through love, and has the fruit of love plainly and clearly visible. The fruit of love is joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control. These attributes of the real Holy Spirit fulfill the Law as Yeshua did. Living through and by the power of the real Holy Spirit is only way we as believers can take up our own crosses and follow after Messiah Yeshua.
Another contrast between the real Holy Spirit and the antichrist (anti-messiah) spirit is that the true Spirit of G-d will break down the barriers between you and G-d, while the Antichrist spirit will build up the walls, the berms, the pits, and the towers that stand between you and your Creator. The real Holy Spirit will work in you relentlessly to cultivate a righteous and holy life according to the clear standards in Scripture, but the antichrist (anti-messiah) spirit will convince you that you have arrived, that you have found G-d, and have gone as far as you can. It will establish false walls and fictitious boundaries in your mind, which after a bit of time turn into strongholds. These strongholds, in turn, prevent us from living a victorious life through the power of the Holy Spirit. They stop us from overcoming the carnal nature, and they provide in-rodes for worldly ways, ideologies, and life goals that are contrary to the leading of the real Holy Spirit.
The antichrist (anti-messiah) spirit is so prevalent in today’s houses of worship that most people have never seen, felt, or been around the real Holy Spirit in a way that they could distinguish it from the false antichrist (anti-messiah) spirit. The true Holy Spirit is quenched by the acceptance of the antichrist (anti-messiah) spirit in our midst, and grieved when we obey the Antichrist spirit’s instruction for our lives. The goal of the Antichrist spirit is to drive out the Holy Spirit, and eventually steal, kill, and destroy the body of Messiah.
The Key: never assume you know the difference between the counterfeit antichrist (anti-messiah) spirit and the Holy Spirit. The counterfeit will always look, feel, act, and seem just like the real Spirit of G-d. The only way I personally began to perceive the presence of the antichrist (anti-messiah) spirit was AFTER the Holy Spirit called me to ’come out from among them’:
2 Corinthians 6:14-18 (TLV) 14 Do not be unequally yoked with unbelievers. For what partnership is there between righteousness and lawlessness? Or what fellowship does light have with darkness? 15 What harmony does Messiah have with Belial? Or what part does a believer have in common with an unbeliever? 16 What agreement does God’s Temple have with idols?  For we are the temple of the living God—just as God said,
“I will dwell in them and walk among them; and I will be their God, and they shall be My people.  17 Therefore, come out from among them, and be separate, says Adonai. Touch no unclean thing. Then I will take you in. 18 I will be a father to you, and you shall be My sons and daughters, says Adonai-Tzva’ot.” 
And, the second part that most believers never accomplish:
Jeremiah 51:45 (TLV) 45 Come out of her, My people! Each of you, save your soul from the fierce anger of Adonai.
What’s the difference between these two passages, you ask? The first, is talking about ’them’, but the second is talking about ’her’. The first passage is a call to be separate from the world and its ways, and the second passage is a call to come out of Babylon. Don’t just believe what I say, read the context.
Today, Babylon has disguised itself, wrapping itself in a Mystery, and it has infiltrated our entire world. Our nations, states, cities, towns, neighborhoods, houses of worship, and even our homes house Mystery Babylon  — and we are completely unaware. The spirit of Mystery Babylon is the Antichrist spirit , and it calls to all the world to unite together under it. It calls for tolerance for everything but biblical believers who are temples of the true Holy Spirit,and it drives away everyone and everything by the roar of a lion, and by the dark powers of hell.
In the sight of all this, the Good News is this:
Romans 8:37-39 (TLV) 37 But in all these things we are more than conquerors through Him who loved us. 38 For I am convinced that neither death nor life, nor angels nor principalities, nor things present nor things to come, nor powers, 39 nor height nor depth, nor any other created thing will be able to separate us from the love of God that is in Messiah Yeshua our Lord.
 Matthew 5
 Galatians 5:14
 1 Corinthians 3:1-3
 Galatians 6:3; Deuteronomy 8:11-14
 1 Corinthians 1:25; 3:19; 8:1-3
 Galations 5:22-23
 Matthew 5:17
 Matthew 16:24
 cf. Deut. 22:9-11.
 A spelling variant here of Grk. belial, the devil; Heb. b’liya’al, worthlessness, possibly a wordplay on Heb. b’li ‘ol, without a yoke.
 cf. Ezek. 8:3, 10.
 Revelation 1:12-13
 cf. Exod. 29:45; Lev. 26:11-12; Jer. 32:38; Ezek. 37:27.
 cf. Isa. 52:11
 cf. Ezek. 20:34, 41.
 Grk. Kurios Pantokrator (Lord Almighty); cf. 2 Sam. 7:8, 14(2 Ki. 7:8, 14 LXX); 1 Chr. 17:13; Isa. 43:6; Hos. 12:6(5).
 Revelation 17:5
 1 John 4:3
 1 Peter 5:8