Question [Q] Rooting without tripping Knox

Hi,

Since updating to 4.3 (biggest mistake I've made), I've been looking for root methods or a way to downgrade back to 4.1.2. I tried the De La Vega Root method but that didn't end up working out. I heard Kingo and VROOT are malicious. I was going to try the CF Auto Root Method but I don't want to trip my Knox Counter because I've heard I won't get any future updates if I do so. What methods are available to root my phone or downgrade it back to 4.1.2?

Phone: Galaxy S3 (SGH-i747M on Rogers Wireless)
Baseband Version: I747MVLUEMK5
Build Number: JSS15J.I747MVLUEMK5