![]() ![]() ![]() Note that a BIOS update by its nature will mean some modules will change (due to bugfixes/new features etc.) but this should at least let you know which specific parts changed and maybe even inspect them in detail. According to the chapter 2. In it against a list defined in ``efilist.json`` > chipsec_main -i -n -m -a check,efilist.json,uefi.romĭecodes ``uefi.rom`` UEFI firmware image binary and checks all EFI executables > chipsec_main -i -n -m -a generate,efilist.json,uefi.romĬreates a list of EFI executable binaries in ``efilist.json`` from ``uefi.rom`` 3 branches 28 tags Go to file This branch is up to date with prop263/UEFITool:master. The module will dump firmware image directly from ROMĬreates a list of EFI executable binaries in ``efilist.json`` from the firmware ``fw_image`` Full file path to UEFI firmware image. Project development started in the middle of 2013 because of the lack of cross-platform open source utilities for tinkering with. ``json`` JSON file with configuration of white-listed EFI UEFITool is a cross-platform open source application written in C++/Qt, that parses UEFI-compatible firmware image into a tree structure, verifies image's integrity and provides a GUI to manipulate image's elements. ``check`` Decodes UEFI firmware image and checks all EFI executable spaces are now allowed for hex pattern search. empty paddings are shown as Empty (0x00) or Empty (0xFF) - volume size is determined by FvLength header field only. ``generate`` Generates a list of EFI executable binaries from the UEFI Changes: - added support for Intel signed GUIDed sections. ![]() The module can generate a list of EFI executables from (U)EFI firmware file orĮxtracted from flash ROM, and then later check firmware image in flash ROM orįile against this list of executables Usage: Beyond Compare or even diff).Ĭhipsec project has a whitelist module which is intended to verify that the list of UEFI modules has not changed: Also, UEFI is responsible for providing an interface between the resources that the system. UEFI will control the system from powering it on until the operating system is fully loaded. The trick is importing the information as image files, which serves as the basis for. UEFI (Unified Extensible Firmware Interface) is an industry standard that specifies the different interfaces that a system must provide in a pre-boot environment. It has a simple interface where you can parse, alter, and view BIOS images and EUFI firmware settings on Windows. UEFITool or the sister project UEFIextract: extract both images then compare using a standard file diffing tool (e.g. UEFITool is a free UEFI modifier that grants you access to UEFI-compatible tools, much like Ventoy and Boot-Repair-Disk. There are at least two options I know of to check for differences between UEFI ROM dumps: The contents of the firmware volumes containing code should not change between boots. The dump is likely different due to NVRAM data (basically settings which need to be saved between boots or even BIOS updates, such as boot device, RAM timings, serial number/MAC address and so on). ![]()
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