Nearly all miners have some "false positives" but here the original ccminer has much less than this adaption of it and i'm wondering what optimization could cause that raise in detections and even not just the common detections, thats about malware, ... - when i find time i'll check it in a isolated virtual environment with tracers and sniffers.
Wrote it several times already, will write once more:
Original one is based on tpruvot's implementation of ccminer, mine is based on alexis78 implementation, they're quite different and AV soft differs them too.
No one can confirm whether it's safe or not, you should base on user feedback.