Web-based cryptominers are malware

Web-based cryptominers are malware

Original source: Sophos

Legitimate cryptomining programs ask users for permission to run. Malicious versions don’t, opting instead to quietly leach a computer’s resources. SophosLabs is seeing more of the latter variety, with a new twist:

Instead of showing up as executable files, they take the form of scripts hidden on websites, mining for cryptocurrency in the browser. Visitors to these sites see no evidence of the mining. The only clues that something may be amiss are their computer slowing down and their fans revving up ...

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