nazywam/autoit-ripperExtract AutoIt scripts embedded in PE binaries
This is a short python script that allows for extraction of "compiled" AutoIt scripts from PE executables.
This script is heavily based on 3 resources, definitely check them out if you want to dig a bit deeper into AutoIt stuff:
EA05 AutoIt3.00EA06 AutoIt3.26JB01 AutoHotKey v1JB01 AutoIT2python3 -m pip install autoit-ripper
or, if you'd like to install the version from sources:
git clone https://github.com/nazywam/AutoIt-Ripper.git
cd AutoIt-Ripper
pip install .
From a python script:
from autoit_ripper import extract, AutoItVersion
with open("sample.exe", "rb") as f:
file_content = f.read()
# EA05 for v3.00+, EA06 for v3.26+
# Omitting `version` or passing None will try both versions
content_list = extract(data=file_content, version=AutoItVersion.EA06)
From the commandline:
autoit-ripper sample.exe out_directory
Help message:
autoit-ripper --help
usage: autoit-ripper [-h] [--verbose] [--ea {EA05,EA06,guess}] file output_dir
positional arguments:
file input binary
output_dir output directory
optional arguments:
-h, --help show this help message and exit
--verbose, -v
--ea {EA05,EA06,JB01,guess}
extract a specific version of AutoIt script (default: guess)
| Field | Length | encryption (EA05) | encryption (EA06) | Notes |
|---|
| "FILE" | 4 | MT(0x16FA) | LAME(0x18EE) | static string |
| flag | 4 | xor(0x29BC) | xor(0xADBC) | |
| auto_str | flag (* 2) | MT(0xA25E + flag) | LAME(0xB33F + flag) | UTF-8/UTF-16 |
| path_len | 4 | xor(0x29AC) | xor(0xF820) | |
| path | path_len (* 2) | MT(0xF25E + path_len) | LAME(0xF479 + path_len) | Path of the compiled script |
| compressed | 1 | None | None | is the script compressed |
| data_size | 4 | xor(0x45AA) | xor(0x87BC) | compressed data size |
| code_size | 4 | xor(0x45AA) | xor(0x87BC) | uncompressed data size |
| crc | 4 | xor(0xC3D2) | xor(0xA685) | compressed data crc checksum |
| creation date | 4 | None | None | file creation date (high) |
| creation date | 4 | None | None | file creation date (low) |
| last update date | 4 | None | None | last edit date (high) |
| last update date | 4 | None | None | last edit date (low) |
| data | data_size | MT(checksum + 0x22af) | LAME(0x2477) | script data |
| v3.00 | v3.26 |
|---|
| Code storage | greped by magic | "SCRIPT" resource (/greped by magic?) |
| String encoding | UTF-8 | UTF-16 |
| Encryption | xor/custom MT19937 | xor/LAME crypt |
| Code encryption key | dynamic | static |
| Compression | yes | yes |
| Code "compilation" | no | yes |
| Magic | EA05 | EA06 |