Major exploit found in Claymore miner! The exploit is based on Satori the nasty exploit that took out IOT devices in 2016, its exploiting port 3333 so block that port and check your rigs ASAP.

Full article
https://arstechnica.com/information-technology/2018/01/in-the-wild-malware-preys-on-computers-dedicated-to-mining-cryptocurrency/