# ergrelet/unlicense

Dynamic unpacker and import fixer for Themida/WinLicense 2.x and 3.x.

Repository: https://github.com/ergrelet/unlicense
Canonical: https://ross.abutalabs.com/products/unlicense
Language: Python
License: GPL-3.0
License Family: copyleft
Topics: unpacker, themida, winlicense, windows, dump, python, malware-analysis, malware-unpacker, frida, scylla, dotnet-assembly, portable-executable
Last push: 2023-08-19T19:09:22+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 1842, "days_push": 1110, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1450, forks 260 (observed 2026-08-28T04:04:45.747374+00:00)

## What it is
A Python 3 command-line tool that dynamically unpacks executables protected with Themida/WinLicense 2.x and 3.x. It automatically recovers the original entry point and rebuilds obfuscated import tables for 32-bit and 64-bit PE files and .NET assemblies.

## Use cases
- unpack a Themida-protected executable
- dump a WinLicense-packed binary and fix its imports
- recover the original entry point of a packed PE
- unpack a .NET assembly protected with Themida
- analyze malware samples protected with Themida in a VM
- repair obfuscated import tables of a dumped executable

## When to choose
- you need to unpack Themida/WinLicense 2.x or 3.x protected binaries
- you do malware analysis or reverse engineering on Windows PEs
- you want automatic OEP recovery and import table fixing
- you prefer a scriptable Python-based unpacking tool

## When to avoid
- the target uses a different protector than Themida/WinLicense
- you need runnable dumps of .NET DLLs (unsupported)
- you cannot run the target executable safely (the tool executes it)
- the WinLicense-protected binary requires a license file you don't have

## Facets
- artifact type: cli-tool
- maturity: active
- function: reverse-engineering, security, cli
- domain: security, reverse-engineering, windows, developer-tools
- platform: windows, python, cli
- tags: unpacker, themida, winlicense, malware-analysis, frida, import-fixing, portable-executable, dump

## Member repositories
- ergrelet/unlicense (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:45.747374+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:35:55.704830+00:00, confidence not recorded.
  - readme: https://github.com/ergrelet/unlicense (fetched 2026-08-28T04:04:45.747374+00:00, sha c6650a9c7b3d)
- Data as of 2026-08-30T08:39:29.467469+00:00.