DescriptionThis indicates an attempt to use a Monero Cryptocurrency miner.
Monero (XMR) is an open-source cryptocurrency created in April 2014. It's very similar to Bitcoin. As of 2017, Monero is the 6th most traded cryptocurrency, with a market-cap of over $300,000,000.
Please note Monero Cryptocurrency miners are often embedded in malware and used for botnet mining.