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Ransomware can now run directly on the CPU, researcher warns | The ghost in the machine is reaching the deepest foundations of the computing infrastructure
A security researcher designed a way to "weaponize" microcode updates to install ransomware directly onto the CPU. Rapid7 analyst Christiaan Beek drew inspiration from a critical flaw...
However, this low-level layer between hardware and machine code can also serve as a stealthy attack vector – capable of hiding malicious payloads from all software-based defenses. Rapid7 analyst Christiaan Beek drew inspiration from a critical flaw in AMD's Zen processors, discovered by Google researchers earlier this year. The flaw could allow attackers to modify the RDRAND instruction and inject a custom microcode that always selects "4" when generating a random number.
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