A new x86 bare-metal tool allows users to dump system RAM directly to a USB drive during Cold Boot Attack experiments. By cooling the RAM to -60°C, sensitive information can be extracted before data decay occurs, highlighting vulnerabilities in memory security.
The BareMetal RAM Dumper is a bare-metal x86 tool designed for dumping system RAM to a boot medium like a USB drive. It operates using BIOS interrupts, negating the need for an operating system and leveraging unreal mode for memory access above the 1MB barrier.
This tool was developed for experimental purposes related to Cold Boot Attacks. By cooling a laptop's RAM to -60°C and quickly booting from the USB drive, users can capture volatile memory data before it decays, potentially exposing sensitive information such as encryption keys.
The tool includes features like a custom bootloader that utilizes BIOS Legacy CSM and memory map parsing using INT 0x15 E820. It performs memory reads in 32KB chunks and writes directly to the disk, starting at Logical Block Address 64.
To compile the project, NASM must be installed. The build process involves generating a boot image (boot.bin) from the source files (stage1.asm and stage2.asm) and writing it to a dedicated USB drive, ensuring no important data is lost during the RAM dump.
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A new x86 bare-metal tool allows users to dump system RAM directly to a USB drive during Cold Boot Attack experiments. By cooling the RAM to -60°C, sensitive information can be extracted before data decay occurs, highlighting vulnerabilities in memory security.