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Now checking for python v3 #4

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76 changes: 46 additions & 30 deletions decompile-py2exe.py
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Original file line number Diff line number Diff line change
Expand Up @@ -26,19 +26,18 @@
2016/12/08: start
2016/12/14: continue
2018/07/09: 0.0.2 update for version uncompyle6 3.
2022/08/07: Finish todo list -AlphaO4

Todo:
Check if running under Python 3
Check if running under Python 3
except importerror for uncompyle6 and pefile
exe version (pyinstaller)
"""

import optparse
import sys
import os
import textwrap
import marshal
import dis
import zipfile
from io import StringIO

Expand All @@ -55,6 +54,7 @@
print('Missing pefile and/or peutils Python module, please check if it is installed.')
exit()


def PrintManual():
manual = '''
Manual:
Expand All @@ -64,13 +64,16 @@ def PrintManual():
for line in manual.split('\n'):
print(textwrap.fill(line, 79))

#Convert 2 Bytes If Python 3
# Convert 2 Bytes If Python 3


def C2BIP3(string):
if sys.version_info[0] > 2:
return bytes([ord(x) for x in string])
else:
return string


def Decompilepy2exe(data, pythonversion):
data = data[0x010:]
offset = data.find(b"\x00")
Expand All @@ -82,12 +85,14 @@ def Decompilepy2exe(data, pythonversion):
decompile(pythonversion, pythoncode[-1], oStringIO)
print(oStringIO.getvalue())


def GetPythonVersion(data):
if data[0:6] == b'PYTHON' and data[8:] == b'.DLL':
return data[6] - 0x30 + (data[7] - 0x30) / 10.0
else:
return 0.0


def ProcessPy2exe(data, options):
try:
oPE = pefile.PE(data=data)
Expand All @@ -108,7 +113,8 @@ def ProcessPy2exe(data, options):
if hasattr(resource_id, 'directory'):
for resource_lang in resource_id.directory.entries:
if hasattr(resource_lang, 'data'):
pythonscript = oPE.get_data(resource_lang.data.struct.OffsetToData, resource_lang.data.struct.Size)
pythonscript = oPE.get_data(
resource_lang.data.struct.OffsetToData, resource_lang.data.struct.Size)

if pythonscript == None:
print('Unable to find Python code (no resource PYTHONSCRIPT)')
Expand All @@ -122,40 +128,49 @@ def ProcessPy2exe(data, options):

Decompilepy2exe(pythonscript, pythonversion)


def ProcessFile(filename, options):
if filename == '':
data = sys.stdin.buffer.read()
elif filename.lower().endswith('.zip'):
try:
oZipfile = zipfile.ZipFile(filename, 'r')
oZipContent = oZipfile.open(oZipfile.infolist()[0], 'r', C2BIP3(options.password))
data = oZipContent.read()
oZipContent.close()
oZipfile.close()
except Exception as e:
print('Error opening file: %s' % str(e))
return
else:
try:
fIn = open(filename, 'rb')
data = fIn.read()
fIn.close()
except Exception as e:
print('Error opening file: %s' % str(e))
return

ProcessPy2exe(data, options)
if filename == '':
data = sys.stdin.buffer.read()
elif filename.lower().endswith('.zip'):
try:
oZipfile = zipfile.ZipFile(filename, 'r')
oZipContent = oZipfile.open(
oZipfile.infolist()[0], 'r', C2BIP3(options.password))
data = oZipContent.read()
oZipContent.close()
oZipfile.close()
except Exception as e:
print('Error opening file: %s' % str(e))
return
else:
try:
fIn = open(filename, 'rb')
data = fIn.read()
fIn.close()
except Exception as e:
print('Error opening file: %s' % str(e))
return

ProcessPy2exe(data, options)


def Main():
moredesc = '''
if sys.version_info[0] != 3:
print('This program requires Python 3.x')
exit()

Copyright 2016-2018 NVISO
Apache License, Version 2.0
https://www.nviso.be'''

oParser = optparse.OptionParser(usage='usage: %prog [options] [file]\n' + __description__ + moredesc, version='%prog ' + __version__)
oParser.add_option('-m', '--man', action='store_true', default=False, help='Print manual')
oParser.add_option('-p', '--password', default='infected', help='The ZIP password to be used (default infected)')
oParser = optparse.OptionParser(
usage='usage: %prog [options] [file]\n' + __description__ + moredesc, version='%prog ' + __version__)
oParser.add_option('-m', '--man', action='store_true',
default=False, help='Print manual')
oParser.add_option('-p', '--password', default='infected',
help='The ZIP password to be used (default infected)')
(options, args) = oParser.parse_args()

if options.man:
Expand All @@ -170,5 +185,6 @@ def Main():
else:
oParser.print_help()


if __name__ == '__main__':
Main()