Let's start by clearly stating what this post is, and what it isn't. It is a description of how I set up multi-boot for Linux systems, sometimes including Windows, using the GRUB bootloader. It is not ...

I have been struggling for quite some time now to set up multi-boot support on a new HP Pavilion dm1-4310ez sub-notebook that came preloaded with Windows 8, UEFI, and gpt disk partitioning. During ...

The developers of the BlackLotus UEFI bootkit have improved the malware with Secure Boot bypass capabilities that allow it to infect even fully patched Windows 11 systems. BlackLotus is the first ...

A recently discovered ransomware strain called HybridPetya can bypass the UEFI Secure Boot feature to install a malicious application on the EFI System Partition. HybridPetya appears inspired by the ...

ESET Research has discovered HybridPetya, on the VirusTotal sample sharing platform. It is a copycat of the infamous Petya/NotPetya malware, adding the capability of compromising UEFI-based systems ...

I've got my Ubuntu system at home set up using UEFI boot, mirrored root/home using btrfs, and mirrored swap using LVM, but making sure that /boot/efi is mirrored across both drives and usable in the ...

UPDATE (December 2 nd, 2024): The bootkit described in this report seems to be part of a project created by cybersecurity students participating in Korea's Best of the Best (BoB) training program. As ...

This is not strictly a server-specific topic but this is something that probably becomes more of a problem with server and automated provisioning environments. Though in my case it's my home lab. Most ...

If you recently moved from BIOS to UEFI and you cannot boot your computer since then, here is how you can repair the EFI bootloader in Windows 11/10. It is pretty easy to repair the EFI bootloader ...