Reads the AGESA version from an UEFI image

agesa.py

#!/usr/bin/python3

import lzma
import sys

with open(sys.argv[1], "rb") as f:
    image = f.read()

offset = image.find(b"\x93\xFD\x21\x9E\x72\x9C\x15\x4C\x8C\x4B\xE7\x7F\x1D\xB2\xD7\x92") + 0x30
CHUNK_SIZE = 2048

lz = lzma.LZMADecompressor()

while data := lz.decompress(image[offset:offset + CHUNK_SIZE]):
    if (pos := data.find(b"AGESA!V9")) >= 0:
        version = data[pos:data.find(b"\x00\x00\x00\x00", pos)].decode()
        print(version)
        sys.exit()
    offset += CHUNK_SIZE

sys.exit(1)

./agesa.py uefi.bin