Unless your computer is pretty old, it probably uses UEFI (Unified Extensible Firmware Interface) to boot. The idea is that a bootloader picks up files from an EFI partition and uses them to start ...

Ø在 x86 系统中，将 1M 空间最上面的 0xF0000 到 0xFFFFF 这 64K 映射给 ROM。 Ø当电脑刚加电的时候，会做一些重置的工作，将 CS 设置为 0xFFFF，将 IP 设置为 0x0000，所以第一条指令就会指向 0xFFFF0，正是在 ROM 的范围内。 Ø在这里，有一个 JMP 命令会跳到 ROM 中做初始化 ...

罗冰：系统安全（特别是物理隔离领域）专家，主导开发网络隔离卡、双网隔离机、国产隔离系统、单向光传输等各类安全产品，拥有十几项发明和实用新型专利。致力于UEFI技术的研究、实践和推广，在CSDN和知乎上设有“UEFI开发探索”专栏。译著《现代X86汇编 ...

My UEFI experience so far has been limited to only two laptop OEMs, HP/Compaq and Acer. I found the former to be relatively difficult to work with (see the recent Compaq and earlier HP Pavilion posts) ...

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 ...

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 ...

IT之家4月19日消息 继此前 小米8 UEFI固件编译完成后，今日有网友发推称自己成功在Redmi Note 7上运行UEFI Shell。 从这位推特ID为RealDanct12的网友晒出的视频来看，其成功在Redmi Note 7上完成了引导工作，为后续刷入桌面系统奠定基础。UEFI Shell可在用户和UEFI系统之间 ...

With the increasing prevalence of open-source implementations and the expansion of personal computing device usage to include mobile and non-PC devices as well as traditional desktops and laptops, ...

UPDATE: November 28, 3:20 PM California time. The headline of this post has been changed. This update is adding the following further details: this threat is not a UEFI firmware implant or rootkit, it ...

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