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Phoenix TDK Packer Extractor v2.0_a5

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Added detection of TDK Packer executable base offset

Improve TDK unpacking at weird images
This commit is contained in:
platomav 2022-05-23 21:04:05 +03:00
parent 7bb0c5f9a9
commit 8b561640db
4 changed files with 120 additions and 35 deletions
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13
Portwell_EFI_Extract.py
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@ -7,7 +7,7 @@ Portwell EFI Update Extractor
Copyright (C) 2021-2022 Plato Mavropoulos
"""
TITLE = 'Portwell EFI Update Extractor v2.0_a5'
TITLE = 'Portwell EFI Update Extractor v2.0_a6'
import os
import sys
@ -18,13 +18,10 @@ sys.dont_write_bytecode = True
from common.efi_comp import efi_decompress, is_efi_compressed
from common.path_ops import safe_name, make_dirs
from common.patterns import PAT_PORTWELL_EFI, PAT_MICROSOFT_MZ
from common.system import script_init, argparse_init, printer
from common.text_ops import file_to_bytes
PEFI_MAGIC = br'MZ'
FILE_MAGIC = br'<UU>'
FILE_NAMES = {
0 : 'Flash.efi',
1 : 'Fparts.txt',
@ -40,8 +37,8 @@ def is_portwell_efi(in_file):
try: pe_buffer = get_portwell_pe(in_buffer)[1]
except: pe_buffer = b''
is_mz = in_buffer.startswith(PEFI_MAGIC) # EFI images start with PE Header MZ
is_uu = pe_buffer.startswith(FILE_MAGIC) # Portwell EFI files start with <UU>
is_mz = in_buffer.startswith(PAT_MICROSOFT_MZ.pattern) # EFI images start with PE Header MZ
is_uu = pe_buffer.startswith(PAT_PORTWELL_EFI.pattern) # Portwell EFI files start with <UU>
return is_mz and is_uu
@ -65,7 +62,7 @@ def portwell_efi_extract(input_buffer, output_path, padding=0):
printer(efi_title, padding)
efi_files = pe_data.split(FILE_MAGIC) # Split EFI Payload into <UU> file chunks
efi_files = pe_data.split(PAT_PORTWELL_EFI.pattern) # Split EFI Payload into <UU> file chunks
parse_efi_files(extract_path, efi_files[1:], padding)