According to Christian BC, the senior director of the threat Analytics, the prototype uses a security vulnerability in AMD Zen processors, which allows you to install the unsigned micro code and change the behavior of the chip at iron level.
Previously, the Google security team has revealed a security vulnerability that affects processors from Zen 1 to Zen 5, which allowed you to install the unsigned micro code.
And although AMD released the corrections covering this gap, Bick decided to prove that such attacks were possible by creating the first prototype of the virus.
Such a threat can skip all traditional protection tools, as changes occur at the micro code level, almost invisible for antiviruses. Even if the BC, even if the user tries to reinstall the operating system, he stressed that such an attack can prevent the entire driver until a ransom is paid.
Expert warns that developers should pay more attention to micro code and BIOS security to prevent such attacks in the future.
Source: Ferra
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