# vtil-project/VTIL-Core

Virtual-machine Translation Intermediate Language

Repository: https://github.com/vtil-project/VTIL-Core
Canonical: https://ross.abutalabs.com/products/vtil-core
Language: C++
License: BSD-3-Clause
License Family: permissive
Topics: virtual-machine-translation, optimizing-compilers, compiler, intermediate-language, optimizer, devirtualizer, deobfuscation
Last push: 2026-07-27T04:06:06+00:00

## Health v2 (maintenance only)
Score: 75/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 94, release rhythm 35, longevity 100
- inputs: {"age_days": 2346, "days_push": 37, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1581, forks 181 (observed 2026-08-28T04:05:06.847588+00:00)

## What it is
VTIL-Core is the core library of the Virtual-machine Translation Intermediate Language project, an optimizing compiler infrastructure built for binary de-obfuscation and de-virtualization. Its versatile IL makes it easy to lift code from any architecture (including stack machines) and emit code back to native format at arbitrary virtual addresses.

## Use cases
- devirtualize obfuscated virtual machine protected binaries
- deobfuscate compiled binaries
- lift native assembly into an intermediate representation
- optimize lifted code with an optimizing compiler
- emit optimized code back to native instructions
- build binary analysis and translation tooling

## When to choose
- you need to devirtualize or deobfuscate VM-protected binaries
- you want an IL that preserves native ISA concepts like stack and physical registers
- you need to lift from arbitrary architectures including stack machines
- you want to emit code back to native format at any virtual address

## When to avoid
- you need a general-purpose compiler backend like LLVM for normal compilation
- you need a mature, fully documented toolchain - the project is still incomplete
- you need a ready-to-use deobfuscation tool rather than a library to build on

## Facets
- artifact type: library
- maturity: experimental
- function: compiler, interpreter, parser, developer-tools
- domain: compilers, reverse-engineering, security, developer-tools
- platform: cpp, windows, cross-platform
- tags: intermediate-language, devirtualization, deobfuscation, binary-analysis, optimizing-compiler, virtual-machine-translation, linux, macos

## Member repositories
- vtil-project/VTIL-Core (main) score 75

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:06.847588+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 2026-08-30T03:56:35.060380+00:00, confidence not recorded.
  - readme: https://github.com/vtil-project/VTIL-Core (fetched 2026-08-28T04:05:06.847588+00:00, sha 7e7d977d8708)
- Data as of 2026-08-30T08:39:29.467469+00:00.