No, she just saw bright and warn chakra of Naruto. Karin's appears to be attracted to men depending on their chakra quality. While Sasuke's used to be her main attraction, she now (obviously) finds it frightening after his developed into something malicious and bred from pure hatred. When she sensed Naruto's chakra, however, she found it to be warm and calming, effectively attracting her to him at first sight--er, sense. However, not a moment later, she senses the malicious evil chakra within him, too, which leads her to be frightened of him as well. We all know that the evil chakra is the Kyuubi's, of course.
Not technically. However there is such thing as chakra
No there in no such thing as evil.
Pure evil
Pure evil.
The devil gave an evil chuckle.There was something evil in his eyes.It was an act of pure evil.
Satan is the most evil thing.
No.
kill a puppy
no not at all her is pure evil
Pure evil
Experiment 262, Ace, is the one not evil. Jumba made a mistake in this experiment, making it pure good instead of pure evil. It is the opposite of 626, Stitch.