# x64dbg/ScyllaHide

Advanced usermode anti-anti-debugger. Forked from https://bitbucket.org/NtQuery/scyllahide

Repository: https://github.com/x64dbg/ScyllaHide
Canonical: https://ross.abutalabs.com/products/scyllahide
Language: C++
License: GPL-3.0
License Family: copyleft
Topics: anti-debugging, anti-debug, debugging, debugger, debug, x64dbg, ollydbg, hacktoberfest, x64dbg-plugin
Last push: 2024-06-04T22:02:14+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": 3871, "days_push": 820, "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 4271, forks 514 (observed 2026-08-28T04:08:40.913563+00:00)

## What it is
ScyllaHide is an advanced usermode anti-anti-debug library that hooks Windows functions to hide the presence of a debugger from debugged processes. It ships as plugins for x64dbg, OllyDbg, and TitanEngine, plus a standalone injectable CLI version.

## Use cases
- bypass anti-debug checks while reverse engineering malware
- hide debugger from packed or protected binaries
- debug x64 PE files that detect debuggers
- inject anti-anti-debug into any process under any debugger
- analyze software protected against dynamic analysis

## When to choose
- you need usermode (ring 3) debugger stealth on Windows
- you use x64dbg, OllyDbg, or IDA and hit anti-debug tricks
- you want an open-source, actively maintained ScyllaHide fork

## When to avoid
- you need kernel-mode (ring 0) anti-anti-debug - use TitanHide instead
- you are not debugging on Windows
- you need IDA v6 support, which is no longer maintained

## Facets
- artifact type: plugin
- maturity: active
- function: security, reverse-engineering, plugin-system, developer-tools
- domain: reverse-engineering, security, developer-tools, windows
- platform: windows, cpp, cli
- tags: anti-anti-debug, debugger-plugin, x64dbg, ollydbg, ida, usermode-hooking, stealth-debugging

## Member repositories
- x64dbg/ScyllaHide (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:40.913563+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 2026-08-29T18:22:01.388605+00:00, confidence not recorded.
  - readme: https://github.com/x64dbg/ScyllaHide (fetched 2026-08-28T04:08:40.913563+00:00, sha efb34252c7fa)
- Data as of 2026-08-30T08:39:29.467469+00:00.