zardus/preeny

Health v2 · maintenance only

Adoption not part of the score

1649 stars · 176 forks observed · 2026-10-04

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

Preeny is a collection of LD_PRELOAD libraries written in C that help with binary exploitation and CTF-style challenges. It disables functions like fork(), rand(), and alarm(), converts socket-based server applications into console programs, and can patch binaries at load time.

Use cases

• run a network service binary locally over stdin/stdout for pwn debugging
• disable alarm() timeouts when analyzing a challenge binary
• make rand() deterministic to control randomness in a target program
• defeat anti-debugging ptrace checks in a binary
• dump or overwrite stack canaries during exploitation
• intercept and inspect heap operations when ltrace is inconvenient

When to choose

• you are solving CTF pwn challenges or doing local binary exploitation analysis
• you need to convert a socket-based service into a console application for debugging
• you want lightweight LD_PRELOAD-based runtime patching without a full emulator

When to avoid

• you need a general-purpose debugger or dynamic instrumentation framework like gdb or Frida
• you are working on Windows or macOS, since preeny targets Linux
• you need production-hardened security tooling rather than exploitation helpers

Facets

library · maturity active

security reverse-engineering developer-tools security reverse-engineering developer-tools cli ld-preload ctf pwn binary-exploitation socket-emulation command-line linux

Member repositories

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