Latest version targets systems running ARC processors.

The authors of the Satori IoT malware family have dramatically increased their pool of bot recruits for attack botnets with a new version of the tool targeting systems running ARC processors.

The latest Satori variant, the fourth since the malware first surfaced in Dec. 2017, appears to be the first aimed specifically at ARC chipsets, DDoS attack mitigation vendor Arbor Networks said in an advisory this week.

ARC processors are 32-bit power-efficient CPUs that are used in a wide range of applications including automotive, industrial, and IoT. More than 1.5 billion embedded systems containing ARC cores ship every year, including electronic steering controls and infotainment systems in cars, as well as personal fitness bands and digital TV set tops, and smart thermostats.

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