Mirai Variants Evolve To Target Multiple Architectures

According to internal and open-source data analyzed by the CrowdStrike malware research team, while the ARM CPU architecture (used in most mobile and IoT devices) remains the most prevalent among Mirai variants, the number of 32-bit x86 Mirai variants (used on Linux servers and networking equipment) increased by 120% in Q1 2022 compared to Q1 2021. ARM-compiled variants increased by only 10% during the same timespan, according to internal and open-source data analyzed by CrowdStrike researchers. On average, the number of Mirai variants compiled for both 32- and 64-bit x86 CPU architectures has increased by 101% during the same timespan.