Tag: UEFI

  • HybridPetya: UEFI Bootkit + Ransomware, Explained

    HybridPetya: UEFI Bootkit + Ransomware, Explained

    TL;DR ESET has identified “HybridPetya,” a Petya/NotPetya-style ransomware that extends into the firmware layer by planting a malicious EFI application on the EFI System Partition and abusing CVE-2024-7344 to bypass UEFI Secure Boot on outdated systems. That combination enables pre-OS persistence and faster encryption of the NTFS master file table (MFT). Organizations should prioritize firmware…