UEFI Firmware Storage System Analysis
Weiming Wu, Hui Wu, Jiongjiang Lan, Wenxin Lai, Qing Su · 2016
The analysis of UEFI firmware storage system is rare in available papers about UEFI.We introduce the Logical and physical structure of UEFI firmware.Then we analyse the elements -firmware volume, firmware file, firmware segment --that composed the UEFI firmware and give related code define and pay additional attention to the typical firmware segment.In the experiment, we analyse a typical UEFI BIOS firmware with binary viewer and introduce the nested firmware segment.We also create a program prototype witch can resolve and extract modules included in UEFI firmware to verify the analysis correctness.