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Bootkitty is the first UEFI Bootkit designed for Linux systems

  • ESET discovered the first Unified Extensible Firmware Interface (UEFI) bootkit specifically designed for Linux systems, named Bootkitty.
  • Bootkitty allows attackers to disable the kernel’s signature verification feature and preload two unknown ELF binaries via the Linux init process.
  • The bootkit, named bootkit.efi, is a UEFI application that can bypass UEFI Secure Boot by patching integrity verification functions in memory.
  • Bootkitty marks an advancement in the UEFI threat landscape for Linux systems, emphasizing the importance of enabling UEFI Secure Boot and keeping system firmware and OS up-to-date.

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