# phra/PEzor

Open-Source Shellcode & PE Packer

Repository: https://github.com/phra/PEzor
Canonical: https://ross.abutalabs.com/products/pezor
Homepage: https://iwantmore.pizza/posts/PEzor.html
Language: C
License: GPL-3.0
License Family: copyleft
Topics: shellcode, antivirus-evasion, redteam, hacktoberfest
Last push: 2024-02-03T19:11:05+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": 2233, "days_push": 942, "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 2129, forks 326 (observed 2026-08-28T04:06:17.054476+00:00)

## What it is
PEzor is an open-source shellcode and PE packer that wraps executables or raw shellcode into new binaries with evasion features like unhooking, anti-debug checks, raw syscalls, and sgn encoding. It is aimed at red team operators and offensive security research on Windows targets.

## Use cases
- pack an executable to evade antivirus detection
- encrypt and obfuscate shellcode into a Windows PE
- bypass userland API hooks with unhooking
- add anti-debug checks to a payload
- generate shellcode loaders with raw syscalls
- prepare red team payloads for penetration tests

## When to choose
- you are a red teamer or pentester needing AV-evasive Windows payloads
- you want to pack shellcode or executables with anti-analysis features
- you need a free, scriptable alternative to commercial packers

## When to avoid
- you need to protect legitimate software rather than test defenses
- your target platform is not Windows
- you cannot legally use offensive security tooling in your jurisdiction

## Facets
- artifact type: cli-tool
- maturity: active
- function: security, cryptography, developer-tools
- domain: security, penetration-testing
- platform: windows, cli
- tags: shellcode, pe-packer, antivirus-evasion, red-team, offensive-security, donut, syscalls, linux

## Member repositories
- phra/PEzor (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:17.054476+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 2026-08-30T02:52:25.521909+00:00, confidence not recorded.
  - readme: https://github.com/phra/PEzor (fetched 2026-08-28T04:06:17.054476+00:00, sha b2c47b57ca7b)
- Data as of 2026-08-30T08:39:29.467469+00:00.