If I recall in one of Li Hongzhi books he speaks about calling him and he will come to you and heal you.
Here is an example:
http://www.youtube.com/watch?v=uhX4a_6ApV8&feature=related
It looks like he is going down on the Yin channels
The Greater Yin which is Spleen channel=Travels up
Lesser Yin which is Kidney channel=Travels up
Absolute Yin which is Liver channel=Travels up
Lesser Yang which is Gallbladder channel=travels down
Greater Yang which is Urinary bladder channel=travels down
Yang brightness which is the Stomach channel=travels down
But in the video we see him going up on the channels that go down
and down on the channels going up. So he going opposite of the meridians channels.
Then he does it for the Yang side of arms
Greater yang which is Small intestine=up
Yang brightness which is Large intestine=up
Lesser yang which is Triple heater=up
Again down the up channels.
I personally teach the flow of Qi according to the meridians flowing and massaging going the direction of the flow not the opposite.
http://www.youtube.com/watch?v=MEUMJcsoDls&feature=related
I have seen better demonstrations and this seems like a half attempt.
I have seen it gathering thru the arm in the air traveling correctly thru the meridian flow thru chest and out Laogong point(P-8).
Also my explaining has no new age white light nonsense but uses the theory of Chinese medicine and Qigong theory.
Now I have never met nor have heard of Evil Qigong practices. I have heard of bad teachers and false claims but nothing that would present itself as an evil Qigong practice.
I suggest you learn Falun Gong, some of the chigong is actually fake or evil practices.
I have nothing against Falun Gong not for me I find it to be some newage mixture thing.
But clearly we can see who knows what.