A malicious botnet has been targeting Microsoft SQL database servers to mine cryptocurrency for two years, according to a new report.

Guardicore Labs said that in the last several weeks alone, the hackers had managed to infect close to 2,000 to 3,000 servers daily. As reported by Hacker News, the botnet has been dubbed "Vollgar" after the vollar cryptocurrency it mines alongside monero (XMR), and its "vulgar" way of operating.

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