# JustasMasiulis/lazy_importer

library for importing functions from dlls in a hidden, reverse engineer unfriendly way

Repository: https://github.com/JustasMasiulis/lazy_importer
Canonical: https://ross.abutalabs.com/products/lazy_importer
Language: C++
License: Apache-2.0
License Family: permissive
Topics: anti-reversing, import, export, windows, reverse-engineering, header-only, cpp, game-hacking, malware, getprocaddress, small, obfuscation, getmodulehandle, compile-time, hashing, static-analysis
Last push: 2023-08-03T01:51:27+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3143, "days_push": 1127, "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 1920, forks 229 (observed 2026-08-28T04:05:55.040530+00:00)

## What it is
A header-only C++ library for resolving Windows DLL exports at runtime in a way that hides imports from static analysis tools. It uses compile-time randomized hashing instead of plaintext strings, leaving no imports or strings in the binary.

## Use cases
- hide API imports from static analysis in a Windows binary
- resolve GetProcAddress-style function lookups without leaving strings in memory
- make reverse engineering of a Windows executable harder
- call Windows API functions without linking against import tables
- obfuscate module and function resolution in C++ projects

## When to choose
- you need Windows DLL imports to be invisible to IDA or other static analysis tools
- you want a tiny, header-only, zero-allocation import obfuscation solution
- you are writing red-team tooling or security research software on Windows

## When to avoid
- you are building ordinary applications where import obfuscation provides no benefit and hurts debuggability
- you need cross-platform support beyond Windows
- your project would be flagged as malware by using anti-analysis techniques

## Facets
- artifact type: library
- maturity: stable
- function: security, developer-tools
- domain: security, reverse-engineering, windows
- platform: windows, cpp
- tags: header-only, anti-reversing, obfuscation, dll-imports, compile-time-hashing, game-hacking

## Member repositories
- JustasMasiulis/lazy_importer (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:55.040530+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 2026-08-30T03:09:48.122626+00:00, confidence not recorded.
  - readme: https://github.com/JustasMasiulis/lazy_importer (fetched 2026-08-28T04:05:55.040530+00:00, sha 2eb5a0749dc1)
- Data as of 2026-08-30T08:39:29.467469+00:00.