CTF (Capture The Flag) is a fun way to learn hacking. It's an information security competition, you have to solve challenges from decoding a string to hacking into a server. The goal is to find a specific piece of text called flag.
CTF Sites is the biggest collection of CTF sites, contains only permanent CTFs. I started this project more for myself in the beginning, like a cheat sheet but then I thought it would be good to make it publicly available, it would help a lot of people.
Penetration testing and security lab Operating Systems
- Kali Linux - Based on Debian.
- Parrot Security OS - Based on Debian.
- BackBox - Based on Ubuntu.
Malware analysts and reverse-engineering
Tutorials to learn how to play CTFs
- CTF Field Guide - Field Guide by Trails of Bits.
- CTF Resources - Start Guide maintained by community.
- How to Get Started in CTF - Short guideline for CTF beginners by Endgame
- Intro. to CTF Course - A free course that teaches beginners the basics of forensics, crypto, and web-ex.
- IppSec - Video tutorials and walkthroughs of popular CTF platforms.
- LiveOverFlow - Video tutorials on Exploitation.
- MIPT CTF - A small course for beginners in CTFs (in Russian).
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Dnscat2 - Hosts communication through DNS.
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Kroll Artifact Parser and Extractor (KAPE) - Triage program.
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Magnet AXIOM - Artifact-centric DFIR tool.
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Registry Dumper - Dump your registry.
*** More Tools ***
- Aircrack-Ng - Crack 802.11 WEP and WPA-PSK keys.
apt-get install aircrack-ng
- Audacity - Analyze sound files (mp3, m4a, whatever).
apt-get install audacity
- Bkhive and Samdump2 - Dump SYSTEM and SAM files.
apt-get install samdump2 bkhive
- CFF Explorer - PE Editor.
- Creddump - Dump windows credentials.
- DVCS Ripper - Rips web accessible (distributed) version control systems.
- Exif Tool - Read, write and edit file metadata.
apt-get install exiftool
- Extundelete - Used for recovering lost data from mountable images.
- Fibratus - Tool for exploration and tracing of the Windows kernel.
- Foremost - Extract particular kind of files using headers.
apt-get install foremost
- Fsck.ext4 - Used to fix corrupt filesystems.
- Malzilla - Malware hunting tool.
- NetworkMiner - Network Forensic Analysis Tool.
- PDF Streams Inflater - Find and extract zlib files compressed in PDF files.
- Pngcheck - Verifies the integrity of PNG and dump all of the chunk-level information in human-readable form.
apt-get install pngcheck
- ResourcesExtract - Extract various filetypes from exes.
- Shellbags - Investigate NT_USER.dat files.
- Snow - A Whitespace Steganography Tool.
- USBRip - Simple CLI forensics tool for tracking USB device artifacts (history of USB events) on GNU/Linux.
- Volatility - To investigate memory dumps.
- Wireshark - Used to analyze pcap or pcapng files
- Aircrack-Ng - Crack 802.11 WEP and WPA-PSK keys.
Tools used for creating Web challenges JavaScript Obfustcators
Tools used for performing various kinds of attacks
- Bettercap - Framework to perform MITM (Man in the Middle) attacks.
- Yersinia - Attack various protocols on layer 2.
Tools used for solving Web challenges
- BurpSuite - A graphical tool to testing website security.
- Commix - Automated All-in-One OS Command Injection and Exploitation Tool.
- Hackbar - Firefox addon for easy web exploitation.
- OWASP ZAP - Intercepting proxy to replay, debug, and fuzz HTTP requests and responses
- Postman - Add on for chrome for debugging network requests.
- Raccoon - A high performance offensive security tool for reconnaissance and vulnerability scanning.
- SQLMap - Automatic SQL injection and database takeover tool.
pip install sqlmap
- W3af - Web Application Attack and Audit Framework.
- XSSer - Automated XSS testor.
Tools used for various kind of bruteforcing (passwords etc.)
- Hashcat - Password Cracker
- Hydra - A parallelized login cracker which supports numerous protocols to attack
- John The Jumbo - Community enhanced version of John the Ripper.
- John The Ripper - Password Cracker.
- Nozzlr - Nozzlr is a bruteforce framework, trully modular and script-friendly.
- Ophcrack - Windows password cracker based on rainbow tables.
- Patator - Patator is a multi-purpose brute-forcer, with a modular design.
- Turbo Intruder - Burp Suite extension for sending large numbers of HTTP requests
Tools used for solving Exploits challenges
- DLLInjector - Inject dlls in processes.
- libformatstr - Simplify format string exploitation.
- Metasploit - Penetration testing software.
- one_gadget - A tool to find the one gadget
execve('/bin/sh', NULL, NULL)call.gem install one_gadget
- Pwntools - CTF Framework for writing exploits.
- Qira - QEMU Interactive Runtime Analyser.
- ROP Gadget - Framework for ROP exploitation.
- V0lt - Security CTF Toolkit.
Registry Viewers
- OfflineRegistryView - Simple tool for Windows that allows you to read offline Registry files from external drive and view the desired Registry key in .reg file format.
- Registry Viewer® - Used to view Windows registries.
Tools used for solving Networking challenges
- Masscan - Mass IP port scanner, TCP port scanner.
- Monit - A linux tool to check a host on the network (and other non-network activities).
- Nipe - Nipe is a script to make Tor Network your default gateway.
- Nmap - An open source utility for network discovery and security auditing.
- Wireshark - Analyze the network dumps.
apt-get install wireshark
- Zeek - An open-source network security monitor.
- Zmap - An open-source network scanner.
Tools used for solving Crypto challenges
- CyberChef - Web app for analysing and decoding data.
- FeatherDuster - An automated, modular cryptanalysis tool.
- Hash Extender - A utility tool for performing hash length extension attacks.
- padding-oracle-attacker - A CLI tool to execute padding oracle attacks.
- PkCrack - A tool for Breaking PkZip-encryption.
- QuipQuip - An online tool for breaking substitution ciphers or vigenere ciphers (without key).
- RSACTFTool - A tool for recovering RSA private key with various attack.
- RSATool - Generate private key with knowledge of p and q.
- XORTool - A tool to analyze multi-byte xor cipher.
Tools used for solving Reversing challenges
- Androguard - Reverse engineer Android applications.
- Angr - platform-agnostic binary analysis framework.
- Apk2Gold - Yet another Android decompiler.
- ApkTool - Android Decompiler.
- Barf - Binary Analysis and Reverse engineering Framework.
- Binary Ninja - Binary analysis framework.
- BinUtils - Collection of binary tools.
- BinWalk - Analyze, reverse engineer, and extract firmware images.
- Boomerang - Decompile x86/SPARC/PowerPC/ST-20 binaries to C.
- ctf_import – run basic functions from stripped binaries cross platform.
- cwe_checker - cwe_checker finds vulnerable patterns in binary executables.
- demovfuscator - A work-in-progress deobfuscator for movfuscated binaries.
- Frida - Dynamic Code Injection.
- GDB - The GNU project debugger.
- GEF - GDB plugin.
- Ghidra - Open Source suite of reverse engineering tools. Similar to IDA Pro.
- Hopper - Reverse engineering tool (disassembler) for OSX and Linux.
- IDA Pro - Most used Reversing software.
- Jadx - Decompile Android files.
- Java Decompilers - An online decompiler for Java and Android APKs.
- Krakatau - Java decompiler and disassembler.
- Objection - Runtime Mobile Exploration.
- PEDA - GDB plugin (only python2.7).
- Pin - A dynamic binary instrumentaion tool by Intel.
- PINCE - GDB front-end/reverse engineering tool, focused on game-hacking and automation.
- PinCTF - A tool which uses intel pin for Side Channel Analysis.
- Plasma - An interactive disassembler for x86/ARM/MIPS which can generate indented pseudo-code with colored syntax.
- Pwndbg - A GDB plugin that provides a suite of utilities to hack around GDB easily.
- radare2 - A portable reversing framework.
- Triton - Dynamic Binary Analysis (DBA) framework.
- Uncompyle - Decompile Python 2.7 binaries (.pyc).
- WinDbg - Windows debugger distributed by Microsoft.
- Xocopy - Program that can copy executables with execute, but no read permission.
- Z3 - A theorem prover from Microsoft Research.
JavaScript Deobfuscators
SWF Analyzers
- RABCDAsm - Collection of utilities including an ActionScript 3 assembler/disassembler.
- Swftools - Collection of utilities to work with SWF files.
- Xxxswf - A Python script for analyzing Flash files.
- OSINT_Framework
- TinEye
- Shodan Hacker Search Engine
Various kind of useful services available around the internet
- CSWSH - Cross-Site WebSocket Hijacking Tester.
- Request Bin - Lets you inspect http requests to a particular url.
Collections of installer scripts, useful tools
- CTF Tools - Collection of setup scripts to install various security research tools.
- LazyKali - A 2016 refresh of LazyKali which simplifies install of tools and configuration.
Always online CTFs
- Backdoor - Security Platform by SDSLabs.
- Crackmes - Reverse Engineering Challenges.
- CryptoHack - Fun cryptography challenges.
- echoCTF.RED - Online CTF with a variety of targets to attack.
- Exploit Exercises - Variety of VMs to learn variety of computer security issues.
- Exploit.Education - Variety of VMs to learn variety of computer security issues.
- Gracker - Binary challenges having a slow learning curve, and write-ups for each level.
- Hack The Box - Weekly CTFs for all types of security enthusiasts.
- Hack This Site - Training ground for hackers.
- Hacker101 - CTF from HackerOne
- Hacking-Lab - Ethical hacking, computer network and security challenge platform.
- Hone Your Ninja Skills - Web challenges starting from basic ones.
- IO - Wargame for binary challenges.
- Microcorruption - Embedded security CTF.
- Over The Wire - Wargame maintained by OvertheWire Community.
- PentesterLab - Variety of VM and online challenges (paid).
- PicoCTF - All year round ctf game. Questions from the yearly picoCTF competition.
- PWN Challenge - Binary Exploitation Wargame.
- Pwnable.kr - Pwn Game.
- Pwnable.tw - Binary wargame.
- Pwnable.xyz - Binary Exploitation Wargame.
- Reversin.kr - Reversing challenge.
- Ringzer0Team - Ringzer0 Team Online CTF.
- Root-Me - Hacking and Information Security learning platform.
- ROP Wargames - ROP Wargames.
- SANS HHC - Challenges with a holiday theme released annually and maintained by SANS.
- SmashTheStack - A variety of wargames maintained by the SmashTheStack Community.
- Viblo CTF - Various amazing CTF challenges, in many different categories. Has both Practice mode and Contest mode.
- VulnHub - VM-based for practical in digital security, computer application & network administration.
- W3Challs - A penetration testing training platform, which offers various computer challenges, in various categories.
- WebHacking - Hacking challenges for web.
Projects that can be used to host a CTF
- CTFd - Platform to host jeopardy style CTFs from ISISLab, NYU Tandon.
- echoCTF.RED - Develop, deploy and maintain your own CTF infrastructure.
- FBCTF - Platform to host Capture the Flag competitions from Facebook.
- Haaukins- A Highly Accessible and Automated Virtualization Platform for Security Education.
- HackTheArch - CTF scoring platform.
- Mellivora - A CTF engine written in PHP.
- MotherFucking-CTF - Badass lightweight plaform to host CTFs. No JS involved.
- NightShade - A simple security CTF framework.
- OpenCTF - CTF in a box. Minimal setup required.
- PicoCTF - The platform used to run picoCTF. A great framework to host any CTF.
- PyChallFactory - Small framework to create/manage/package jeopardy CTF challenges.
- RootTheBox - A Game of Hackers (CTF Scoreboard & Game Manager).
- Scorebot - Platform for CTFs by Legitbs (Defcon).
- SecGen - Security Scenario Generator. Creates randomly vulnerable virtual machines.
Self-hosted CTFs
- Damn Vulnerable Web Application - PHP/MySQL web application that is damn vulnerable.
- Juice Shop CTF - Scripts and tools for hosting a CTF on OWASP Juice Shop easily.
Collections of CTF write-ups
- 0e85dc6eaf - Write-ups for CTF challenges by 0e85dc6eaf
- Captf - Dumped CTF challenges and materials by psifertex.
- CTF write-ups (community) - CTF challenges + write-ups archive maintained by the community.
- CTFTime Scrapper - Scraps all writeup from CTF Time and organize which to read first.
- HackThisSite - CTF write-ups repo maintained by HackThisSite team.
- Mzfr - CTF competition write-ups by mzfr
- pwntools writeups - A collection of CTF write-ups all using pwntools.
- SababaSec - A collection of CTF write-ups by the SababaSec team
- Shell Storm - CTF challenge archive maintained by Jonathan Salwan.
- Smoke Leet Everyday - CTF write-ups repo maintained by SmokeLeetEveryday team.