Never-before-seen malware has infected hundreds of Linux and Windows devices

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Researchers have revealed a never-before-seen piece of cross-platform malware that has infected a wide range of Linux and Windows devices, including small office routers, FreeBSD boxes, and large enterprise servers.

Black Lotus Labs, the research arm of security firm Lumen, is calling the malware Chaos, a word that repeatedly appears in function names, certificates, and file names it uses. Chaos emerged no later than April 16, when the first cluster of control servers went live in the wild. From June through mid-July, researchers found hundreds of unique IP addresses representing compromised Chaos devices. Staging servers used to infect new devices have mushroomed in recent months, growing from 39 in May to 93 in August. As of Tuesday, the number reached 111.

Black Lotus has observed interactions with these staging servers from both embedded Linux devices as well as enterprise servers, including one in Europe that was hosting an instance of GitLab. There are more than 100 unique samples in the wild.

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