ME cleaner

A cleaner for Intel ME/TXE images.

This tools removes any unnecessary partition from an Intel ME/TXE firmware, reducing its size and its ability to interact with the system. It should work both with coreboot and with the factory firmware.

Currently this tool:

• Scans the FPT (partition table) and checks that everything is correct
• Removes any partition entry (except for FTPR) from FPT
• Removes any partition except for the fundamental one (FTPR)
• Removes the EFFS presence flag
• Corrects the FPT checksum
• Removes any non-essential LZMA or Huffman compressed module (pre-Skylake only)
• Checks the validity of the RSA signature of the FTPR partition

Don't forget to power cycle your PC after flashing the modified ME/TXE image (power off and power on, not just reboot).

See the current status or a more detailed description of me_cleaner.

Special thanks to Federico Amedeo Izzo for his help during the study of Intel ME.