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EgeBalci/sgn

SGN — polymorphic binary encoder observed · 2026-08-28

github.com/EgeBalci/sgn · Rust · MIT (permissive) observed · 2026-08-28

Health v2 · maintenance only

91/100

  • Activity 94
  • Release rhythm 83
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: 87
  • age_days: 2499
  • days_rel: 36
  • days_push: 36
  • n_releases_24m: 2

Full methodology

Adoption not part of the score

2003 stars · 250 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

SGN is a polymorphic binary encoder that encodes shellcode using an additive feedback loop similar to an LFSR, producing statically undetectable payloads. It is a Rust reimplementation of the Metasploit Shikata ga nai encoder with improvements such as x64 support and a smaller, pseudo-randomly encoded decoder stub.

Use cases

  • encode shellcode to evade static antivirus detection
  • generate undetectable binary payloads for penetration testing
  • polymorphically encode x86 and x64 shellcode
  • replace shikata ga nai encoder with a modern implementation
  • obfuscate payload bytes so they look like random data

When to choose

  • you need statically undetectable encoded shellcode for authorized offensive security work
  • you want x64 shellcode encoding support
  • you need a dependency-free Rust tool that builds with plain cargo

When to avoid

  • you need a defensive or malware-analysis tool rather than an offensive encoder
  • your use of encoded payloads is not authorized or legal in your environment
  • you need a pure obfuscator for general application code rather than shellcode

Facets

cli-tool · maturity active

security cryptography cli security penetration-testing reverse-engineering windows cross-platform cli shellcode-encoder polymorphic evasion shikata-ga-nai offensive-security rust linux macos

2 sources

Member repositories

RepositoryRoleHealth v2
EgeBalci/sgnmain91

For agents

markdown · JSON · MCP: product_card(name="EgeBalci/sgn")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem