Now even YouTube serves ads with CPU-draining cryptocurrency miners

Watching Youtube? Your computer may be infected with malware that sucks up your power to create cryptocurrency for an attacker. Attackers use AV programs because users stay on for longer.

... drive-by cryptocurrency mining is an abuse that drains visitors' electricity and computing resources ...

To add insult to injury, the malicious JavaScript in at least some cases was accompanied by graphics that displayed ads for fake AV programs, which scam people out of money and often install malware when they are run.

The ads contain JavaScript that mines the digital coin known as Monero. In nine out of 10 cases, the ads will use publicly available JavaScript provided by Coinhive, a cryptocurrency-mining service that's controversial because it allows subscribers to profit by surreptitiously using other people's computers. The remaining 10 percent of the time, the YouTube ads use private mining JavaScript that saves the attackers the 30 percent cut Coinhive takes. Both scripts are programmed to consume 80 percent of a visitor's CPU, leaving just barely enough resources for it to function. [order changed]

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