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Linux devices are under attack by a never-before-seen worm


Based on Mirai malware, self-replicating NoaBot installs cryptomining app on infected devices.

The worm is a customized version of Mirai, the botnet malware that infects Linux-based servers, routers, web cameras, and other so-called Internet of Things devices. Another twist: Rather than performing DDoSes, the new botnet installs cryptocurrency mining software, which allows the attackers to generate digital coins using victims’ computing resources, electricity, and bandwidth. “On the surface, NoaBot isn’t a very sophisticated campaign—it’s ‘just’ a Mirai variant and an XMRig cryptominer, and they’re a dime a dozen nowadays,” Akamai Senior Security Researcher Stiv Kupchik wrote in a report Wednesday.

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