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Cybercrime, new Mac malware targets Apple’s M1 chip

New Mac malware targets Apple’s M1 chip. It has been discovered by the cybersecurity expert Patrick Wardle. It is a variant of Pirrit, and has been designed to install itself as a Safari extension

Cybercrime actors created a new Mac malware that targets Apple’s M1 chip. It has been discovered by the cybersecurity expert Patrick Wardle. According to Security Week, Wardle searched Google’s VirusTotal malware analysis and discovered an app named GoSearch22, which turned out to be a variant of Pirrit, a piece of adware that has been around for several years. The sample had been signed with an Apple developer ID and it had apparently been detected in the wild. The adware variant developed for M1 systems was designed to install itself as a Safari extension, and packed various anti-analysis capabilities. The M1 system-on-chip (SoC) is designed for increased performance, as well as better security. It should include security protections built deep into its code execution architecture. The chip uses the arm64 CPU architecture and apps developed specifically for Macs powered by the M1 contain arm64 code.

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