python-exe-unpacker | helper script for unpacking and decompiling EXEs | Reverse Engineering library

python python_exe_unpack.py -i [malware.exe]. python python_exe_unpack.py -p [pyc file].
python python_exe_unpack.py -i [malware.exe] pyinstaller A folder will be created with the original filename concatenated with "_extracted". For example: "malware.exe_extracted". The main python file that contains the logic will usually be the file without any extension (In the folder that concatenated with "_extracted"). In the following example, "hello" is the one that contains the main python logic: -rw-rw-r-- 1 testuser testuser 70K Nov 14 13:08 bz2.pyd -rw-rw-r-- 1 testuser testuser 993K Nov 14 13:08 _hashlib.pyd -rw-rw-r-- 1 testuser testuser 111 Nov 14 13:08 hello -rw-rw-r-- 1 testuser testuser 1009 Nov 14 13:08 hello.exe.manifest -rw-rw-r-- 1 testuser testuser 1.1K Nov 14 13:08 Microsoft.VC90.CRT.manifest -rw-rw-r-- 1 testuser testuser 220K Nov 14 13:08 msvcm90.dll -rw-rw-r-- 1 testuser testuser 557K Nov 14 13:08 msvcp90.dll -rw-rw-r-- 1 testuser testuser 638K Nov 14 13:08 msvcr90.dll -rw-rw-r-- 1 testuser testuser 628K Nov 14 13:08 out00-PYZ.pyz drwxrwxr-x 2 testuser testuser 12K Nov 14 13:08 out00-PYZ.pyz_extracted -rw-rw-r-- 1 testuser testuser 5.2K Nov 14 13:08 pyiboot01_bootstrap -rw-rw-r-- 1 testuser testuser 2.5K Nov 14 13:08 pyimod01_os_path -rw-rw-r-- 1 testuser testuser 12K Nov 14 13:08 pyimod02_archive -rw-rw-r-- 1 testuser testuser 22K Nov 14 13:08 pyimod03_importers -rw-rw-r-- 1 testuser testuser 0 Nov 14 13:08 pyi-windows-manifest-filename hello.exe.manifest -rw-rw-r-- 1 testuser testuser 2.6M Nov 14 13:08 python27.dll -rw-rw-r-- 1 testuser testuser 10K Nov 14 13:08 select.pyd -rw-rw-r-- 1 testuser testuser 234 Nov 14 13:08 struct -rw-rw-r-- 1 testuser testuser 671K Nov 14 13:08 unicodedata.pyd pyinstaller has an option that can encrypt python bytecode. This script will try to decrypt it and decompile the decrypted code. py2exe The result of unpacking and decompiling will be located in folder "unpacked" or the location you specify. If error like this shows "Error in unpacking the exe. Probably due to version incompability (exe created using python 2 and run this script with python 3)", try setting your python to a different version than the one you are using. Eg: "alias python=python2" or "alias python=python3"
python python_exe_unpack.py -p [pyc file] In the above example, sometimes the python file that contains the main logic will not be in the format that uncompyle6 accept (Missing python magic numbers). The above command will prepend magic numbers and decompile it (If magic number is already preprended it will not add it and just proceed with decompiling).