Everything about extract pyinstaller-ed exe files

depyinstaller.cmd

@echo off
python %~dp0\pyinstxtractor.py %1
cd %1_extracted
for /F %%i in ("%1") do (
	if not exist %%~ni goto :eof
	echo %%~ni
	python %~dp0\pycize.py %%~ni
	uncompyle6 -o %%~ni.py %%~ni.pyc
)

Extract pyinstaller.md

Checkpoints

• Put pyinstxtractor.py to somewhere included in PATH by cloning python-exe-unpacker or just downloading
• Clone python-uncompyle6, patch it if on Windows, install
• Also put pycize.py and depyinstaller.cmd along with pyinstxtractor.py
• depyinstaller foo.exe and get source
• If foo is not the real entry name, try to find the real name among the extracted folder, then do the rest

Tools needed

• https://github.com/countercept/python-exe-unpacker
• https://github.com/rocky/python-uncompyle6

pycize.py

import sys
import binascii

def main():
    if len(sys.argv) < 2:
        print('[*] Usage: {0} <filename>'.format(sys.argv[0]))

    else:
        with open(sys.argv[1], "rb") as src, open('{0}.pyc'.format(sys.argv[1]), "wb") as dst:
            dst.write(binascii.unhexlify("330D0D0A206A025B0C000000"))
            dst.write(src.read())

if __name__ == '__main__':
    main()

uncompyle6.patch

--- a/uncompyle6/main.py
+++ b/uncompyle6/main.py
@@ -42,7 +42,7 @@ def _get_outstream(outfile):
         mode = 'wb'
     else:
         mode = 'w'
-    return open(outfile, mode)
+    return open(outfile, mode, encoding='utf-8')

 def decompile(
         bytecode_version, co, out=None, showasm=None, showast=False,