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Capturing the flags
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60 stars written in C
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A little tool to play with Windows security

C 21,115 4,009 Updated May 11, 2025

build-once run-anywhere c library

C 20,280 729 Updated Dec 2, 2025

A free Windows-compatible Operating System

C 16,676 1,996 Updated Dec 20, 2025

mimalloc is a compact general purpose allocator with excellent performance.

C 12,287 1,034 Updated Dec 10, 2025

This repo contains driver samples prepared for use with Microsoft Visual Studio and the Windows Driver Kit (WDK). It contains both Universal Windows Driver and desktop-only driver samples.

C 7,581 5,025 Updated Nov 20, 2025

tiniest x86-64-linux emulator

C 7,368 250 Updated Dec 10, 2025

The fuzzer afl++ is afl with community patches, qemu 5.1 upgrade, collision-free coverage, enhanced laf-intel & redqueen, AFLfast++ power schedules, MOpt mutators, unicorn_mode, and a lot more!

C 6,175 1,215 Updated Dec 20, 2025

UEFI firmware image viewer and editor

C 5,225 705 Updated Nov 18, 2025

Porting Windows Dynamic Link Libraries to Linux

C 4,466 392 Updated Apr 10, 2025

State-of-the-art native debugging tools

C 3,561 449 Updated Dec 2, 2025

Checkpoint/Restore tool

C 3,550 685 Updated Dec 17, 2025

Simple (relatively) things allowing you to dig a bit deeper than usual.

C 3,425 553 Updated Oct 20, 2025

Emulating Apple Silicon devices.

C 3,361 280 Updated Dec 19, 2025

Modern, advanced, portable, multiprotocol bootloader and boot manager. (Official mirror of https://codeberg.org/Limine/Limine)

C 2,682 174 Updated Dec 11, 2025

cc65 - a freeware C compiler for 6502 based systems

C 2,571 477 Updated Dec 3, 2025

Scans all running processes. Recognizes and dumps a variety of potentially malicious implants (replaced/implanted PEs, shellcodes, hooks, in-memory patches).

C 2,282 284 Updated Oct 31, 2025

Open-Source Shellcode & PE Packer

C 2,039 334 Updated Feb 3, 2024

A Linux eBPF rootkit with a backdoor, C2, library injection, execution hijacking, persistence and stealth capabilities.

C 1,921 240 Updated Apr 7, 2024

Hardened allocator designed for modern systems. It has integration into Android's Bionic libc and can be used externally with musl and glibc as a dynamic library for use on other Linux-based platfo…

C 1,669 120 Updated Dec 18, 2025

xAnalyzer plugin for x64dbg

C 1,162 118 Updated Aug 13, 2025

Original C Implementation of the Hell's Gate VX Technique

C 1,139 131 Updated Jun 28, 2021

M*LIB is a library of generic and type safe containers / data structures in pure C language (C99 / C11) for a wide collection of container (comparable to the C++ STL).

C 1,061 89 Updated Nov 12, 2025

Portable C standard library

C 1,029 175 Updated Dec 17, 2025

PDBRipper is a utility for extract an information from PDB-files.

C 868 96 Updated Dec 20, 2025

An easy-to-use library for emulating memory dumps. Useful for malware analysis (config extraction, unpacking) and dynamic analysis in general (sandboxing).

C 845 48 Updated Feb 2, 2024

A x86 32bit Hobby Operatingsystem with graphics, multitasking, networking and 32bit C-Compiler for i386 architecture.

C 802 27 Updated Dec 8, 2025

Demos of various injection techniques found in malware

C 795 189 Updated Feb 15, 2022

Dynamic unpacker based on PE-sieve

C 787 76 Updated Sep 13, 2025

Cheat that uses a driver instead WinAPI for Reading / Writing memory.

C 761 159 Updated Jul 4, 2021
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