• I2P - The Invisible Internet Project.
• Metadata Anonymization Toolkit (MAT) - Metadata removal tool, supporting a wide range of commonly used file formats, written in Python3.

Tor Tools

• OnionScan - Tool for investigating the Dark Web by finding operational security issues introduced by Tor hidden service operators.
• Tor - Free software and onion routed overlay network that helps you defend against traffic analysis.

Reverse Engineering Books

• Gray Hat Hacking The Ethical Hacker's Handbook by Daniel Regalado et al., 2015
• Hacking the Xbox by Andrew Huang, 2003
• Practical Reverse Engineering by Bruce Dang et al., 2014
• The IDA Pro Book by Chris Eagle, 2011

Reverse Engineering Tools

• angr - Platform-agnostic binary analysis framework.
• Capstone - Lightweight multi-platform, multi-architecture disassembly framework.
• Ghidra - Suite of free software reverse engineering tools developed by NSA's Research Directorate originally exposed in WikiLeaks's "Vault 7" publication and now maintained as open source software.
• Immunity Debugger - Powerful way to write exploits and analyze malware.
• Interactive Disassembler (IDA Pro) - Proprietary multi-processor disassembler and debugger for Windows, GNU/Linux, or macOS; also has a free version, [IDA Free](https://www.hex-rays.com/products/ida/support/download_freeware.shtml).
• OllyDbg - x86 debugger for Windows binaries that emphasizes binary code analysis.

Wireless Network Tools

• Nexpose - Commercial vulnerability and risk management assessment engine that integrates with Metasploit, sold by Rapid7.

Web Vulnerability Scanners

• WebReaver - Commercial, graphical web application vulnerability scanner designed for macOS.
• skipfish - Performant and adaptable active web application security reconnaissance tool.
• Nikto - Noisy but fast black box web server and web application vulnerability scanner.
• SecApps - In-browser web application security testing suite.
• WPScan - Black box WordPress vulnerability scanner.

Tor Tools

• DEF CON Suggested Reading
• The Mobile Application Hacker's Handbook by Dominic Chell et al., 2015
• iOS Hacker's Handbook by Charlie Miller et al., 2012
• Android Hacker's Handbook by Joshua J. Drake et al., 2014
• BTFM: Blue Team Field Manual by Alan J White & Ben Clark, 2017
• Bug Hunter's Diary by Tobias Klein, 2011
• Car Hacker's Handbook by Craig Smith, 2016
• Fuzzing: Brute Force Vulnerability Discovery by Michael Sutton et al., 2007
• Metasploit: The Penetration Tester's Guide by David Kennedy et al., 2011
• Penetration Testing: A Hands-On Introduction to Hacking by Georgia Weidman, 2014
• The Art of Exploitation by Jon Erickson, 2008
• The Database Hacker's Handbook, David Litchfield et al., 2005
• The Mac Hacker's Handbook by Charlie Miller & Dino Dai Zovi, 2009
• Black Hat Python: Python Programming for Hackers and Pentesters by Justin Seitz, 2014
• Advanced Penetration Testing for Highly-Secured Environments by Lee Allen, 2012
• RTFM: Red Team Field Manual by Ben Clark, 2014

Malware Analysis Books

• awesome-malware-analysis § Books

Web application and resource analysis tools

• EyeWitness - Tool to take screenshots of websites, provide some server header info, and identify default credentials if possible.
• Wappalyzer - Wappalyzer uncovers the technologies used on websites.
• BlindElephant - Web application fingerprinter.

Data Broker and Search Engine Services

• Hunter.io - Data broker providing a Web search interface for discovering the email addresses and other organizational details of a company.
• Threat Crowd - Search engine for threats.

Metadata harvesting and analysis

• FOCA (Fingerprinting Organizations with Collected Archives) - Automated document harvester that searches Google, Bing, and DuckDuckGo to find and extrapolate internal company organizational structures.

Network device discovery tools

• Censys - Collects data on hosts and websites through daily ZMap and ZGrab scans.
• Shodan - World's first search engine for Internet-connected devices.
• ZoomEye - Search engine for cyberspace that lets the user find specific network components.

OSINT Online Resources

• GhostProject - Searchable database of billions of cleartext passwords, partially visible for free.
• NetBootcamp OSINT Tools - Collection of OSINT links and custom Web interfaces to other services.
• WiGLE.net - Information about wireless networks world-wide, with user-friendly desktop and web applications.

Other Lists Online

• .NET Programming - Software framework for Microsoft Windows platform development.
• Awesome Awesomness - The List of the Lists.
• Android Security - Collection of Android security related resources.
• AppSec - Resources for learning about application security.
• Blue Team - Awesome resources, tools, and other shiny things for cybersecurity blue teams.
• C/C++ Programming - One of the main language for open source security tools.
• CTFs - Capture The Flag frameworks, libraries, etc.
• Hacking - Tutorials, tools, and resources.
• Honeypots - Honeypots, tools, components, and more.
• JavaScript Programming - In-browser development and scripting.
• Python Programming by @vinta - General Python programming.
• Rawsec's CyberSecurity Inventory - An open-source inventory of tools, resources, CTF platforms and Operating Systems about CyberSecurity. ([Source](https://gitlab.com/rawsec/rawsec-cybersecurity-list))
• Ruby Programming by @markets - The de-facto language for writing exploits.
• Security - Software, libraries, documents, and other resources.
• Shell Scripting - Command line frameworks, toolkits, guides and gizmos.
• InfoSec § Hacking challenges - Comprehensive directory of CTFs, wargames, hacking challenge websites, pentest practice lab exercises, and more.

Online Operating Systems Resources

• DistroWatch.com's Security Category - Website dedicated to talking about, reviewing, and keeping up to date with open source operating systems.

Online Penetration Testing Resources

• MITRE's Adversarial Tactics, Techniques & Common Knowledge (ATT&CK) - Curated knowledge base and model for cyber adversary behavior.
• Penetration Testing Framework (PTF) - Outline for performing penetration tests compiled as a general framework usable by vulnerability analysts and penetration testers alike.
• XSS-Payloads - Resource dedicated to all things XSS (cross-site), including payloads, tools, games, and documentation.
• XSS-Payloads - Resource dedicated to all things XSS (cross-site), including payloads, tools, games, and documentation.
• XSS-Payloads - Resource dedicated to all things XSS (cross-site), including payloads, tools, games, and documentation.
• XSS-Payloads - Resource dedicated to all things XSS (cross-site), including payloads, tools, games, and documentation.
• XSS-Payloads - Resource dedicated to all things XSS (cross-site), including payloads, tools, games, and documentation.
• XSS-Payloads - Resource dedicated to all things XSS (cross-site), including payloads, tools, games, and documentation.
• XSS-Payloads - Resource dedicated to all things XSS (cross-site), including payloads, tools, games, and documentation.
• XSS-Payloads - Resource dedicated to all things XSS (cross-site), including payloads, tools, games, and documentation.
• XSS-Payloads - Resource dedicated to all things XSS (cross-site), including payloads, tools, games, and documentation.

Penetration Testing Report Templates

• T&VS Pentesting Report Template - Pentest report template provided by Test and Verification Services, Ltd.

Malware Analysis Books

• HackingThe.cloud
• Cloud Container Attack Tool (CCAT) - Tool for testing security of container environments.

North America

• DEF CON - Annual hacker convention in Las Vegas.
• CarolinaCon - Infosec conference, held annually in North Carolina.
• DerbyCon - Annual hacker conference based in Louisville.
• Hackers Next Door - Cybersecurity and social technology conference held in New York City.
• Hackers On Planet Earth (HOPE) - Semi-annual conference held in New York City.
• National Cyber Summit - Annual US security conference and Capture the Flag event, held in Huntsville, Alabama, USA.
• PhreakNIC - Technology conference held annually in middle Tennessee.
• RSA Conference USA - Annual security conference in San Francisco, California, USA.
• SummerCon - One of the oldest hacker conventions in America, held during Summer.
• Virus Bulletin Conference - Annual conference going to be held in Denver, USA for 2016.

South America

• Hackers to Hackers Conference (H2HC) - Oldest security research (hacking) conference in Latin America and one of the oldest ones still active in the world.

Malware Analysis Books

• CTFTime.org - Directory of upcoming and archive of past Capture The Flag (CTF) competitions with links to challenge writeups.

Asia

• HITB - Deep-knowledge security conference held in Malaysia and The Netherlands.
• SECUINSIDE - Security Conference in Seoul.
• HITCON - Hacks In Taiwan Conference held in Taiwan.

Europe

• 44Con - Annual Security Conference held in London.
• CCC - Annual meeting of the international hacker scene in Germany.
• DeepSec - Security Conference in Vienna, Austria.
• Hack.lu - Annual conference held in Luxembourg.
• SteelCon - Security conference in Sheffield UK.
• Swiss Cyber Storm - Annual security conference in Lucerne, Switzerland.
• HoneyCON - Annual Security Conference in Guadalajara, Spain. Organized by the HoneySEC association.

Zealandia

• Iodine - Tunnel IPv4 data through a DNS server; useful for exfiltration from networks where Internet access is firewalled, but DNS queries are allowed.

Web Exploitation Books

• Windows Credentials Editor - Inspect logon sessions and add, change, list, and delete associated credentials, including Kerberos tickets.
• wePWNise - Generates architecture independent VBA code to be used in Office documents or templates and automates bypassing application control and exploit mitigation software.
• Empire - Pure PowerShell post-exploitation agent.

Web Exploitation Books

• The Browser Hacker's Handbook by Wade Alcorn et al., 2014
• The Web Application Hacker's Handbook by D. Stuttard, M. Pinto, 2011

Social Engineering Tools

• autochrome - Chrome browser profile preconfigured with appropriate settings needed for web application testing.
• sslstrip - Demonstration of the HTTPS stripping attacks.

Intercepting Web proxies

• Fiddler - Free cross-platform web debugging proxy with user-friendly companion tools.
• OWASP Zed Attack Proxy (ZAP) - Feature-rich, scriptable HTTP intercepting proxy and fuzzer for penetration testing web applications.
• mitmproxy - Interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.

Wireless Network Tools

• Aircrack-ng - Set of tools for auditing wireless networks.
• BoopSuite - Suite of tools written in Python for wireless auditing.
• Kismet - Wireless network detector, sniffer, and IDS.
• Reaver - Brute force attack against WiFi Protected Setup.
• Bully - Implementation of the WPS brute force attack, written in C.

Intentionally Vulnerable Systems as Docker Containers

• dsniff - Collection of tools for network auditing and pentesting.
• Intercepter-NG - Multifunctional network toolkit.
• Ncrack - High-speed network authentication cracking tool built to help companies secure their networks by proactively testing all their hosts and networking devices for poor passwords.
• Praeda - Automated multi-function printer data harvester for gathering usable data during security assessments.
• SPARTA - Graphical interface offering scriptable, configurable access to existing network infrastructure scanning and enumeration tools.

DDoS Tools

• Anevicon - Powerful UDP-based load generator, written in Rust.
• HOIC - Updated version of Low Orbit Ion Cannon, has 'boosters' to get around common counter measures.
• T50 - Faster network stress tool.

Network Reconnaissance Tools

• DNSDumpster - Online DNS recon and search service.
• dnstracer - Determines where a given DNS server gets its information from, and follows the chain of DNS servers.
• nmap - Free security scanner for network exploration & security audits.
• zmap - Open source network scanner that enables researchers to easily perform Internet-wide network studies.

Protocol Analyzers and Sniffers

• awesome-pcaptools
• Wireshark - Widely-used graphical, cross-platform network protocol analyzer.
• Debookee - Simple and powerful network traffic analyzer for macOS.

Network Traffic Replay and Editing Tools

• TraceWrangler - Network capture file toolkit that can edit and merge `pcap` or `pcapng` files with batch editing features.
• tcpreplay - Suite of free Open Source utilities for editing and replaying previously captured network traffic.

Proxies and Machine-in-the-Middle (MITM) Tools

• BetterCAP - Modular, portable and easily extensible MITM framework.

Tor Tools

• Shellter - Dynamic shellcode injection tool, and the first truly dynamic PE infector ever created.
• UniByAv - Simple obfuscator that takes raw shellcode and generates Anti-Virus friendly executables by using a brute-forcable, 32-bit XOR key.
• Veil - Generate metasploit payloads that bypass common anti-virus solutions.

Malware Analysis Books

• Lair - Reactive attack collaboration framework and web application built with meteor.
• Reconmap - Open-source collaboration platform for InfoSec professionals that streamlines the pentest process.

Zealandia

• Kaitai Struct - File formats and network protocols dissection language and web IDE, generating parsers in C++, C#, Java, JavaScript, Perl, PHP, Python, Ruby.
• peepdf - Python tool to explore PDF files in order to find out if the file can be harmful or not.
• Veles - Binary data visualization and analysis tool.

Zealandia

• Lynis - Auditing tool for UNIX-based systems.

Zealandia

• CeWL - Generates custom wordlists by spidering a target's website and collecting unique words.
• Rar Crack - RAR bruteforce cracker.

Zealandia

• Hexinator - World's finest (proprietary, commercial) Hex Editor.
• wxHexEditor - Free GUI hex editor for GNU/Linux, macOS, and Windows.

Intentionally Vulnerable Systems as Docker Containers

• Vulnerable WordPress Installation - `docker pull wpscanteam/vulnerablewordpress`.

Intentionally Vulnerable Systems as Docker Containers

• awesome-lockpicking

Intentionally Vulnerable Systems as Docker Containers

• Armitage - Java-based GUI front-end for the Metasploit Framework.
• Metasploit - Software for offensive security teams to help verify vulnerabilities and manage security assessments.

Reverse Engineering Tools

• The Shellcoder's Handbook by Chris Anley et al., 2007
• Exploit Writing Tutorials - Tutorials on how to develop exploits.
• Shellcode Examples - Shellcodes database.

Web application and resource analysis tools

• Android Tamer - Distribution built for Android security professionals that includes tools required for Android security testing.
• ArchStrike - Arch GNU/Linux repository for security professionals and enthusiasts.
• BlackArch - Arch GNU/Linux-based distribution for penetration testers and security researchers.
• Buscador - GNU/Linux virtual machine that is pre-configured for online investigators.
• Kali - Rolling Debian-based GNU/Linux distribution designed for penetration testing and digital forensics.
• Parrot - Distribution similar to Kali, with support for multiple hardware architectures.
• PentestBox - Open source pre-configured portable penetration testing environment for the Windows Operating System.

Web application and resource analysis tools

• 2600: The Hacker Quarterly - American publication about technology and computer "underground" culture.
• Phrack Magazine - By far the longest running hacker zine.

Web application and resource analysis tools

• AT Commands - Use AT commands over an Android device's USB port to rewrite device firmware, bypass security mechanisms, exfiltrate sensitive information, perform screen unlocks, and inject touch events.
• Poisontap - Siphons cookies, exposes internal (LAN-side) router and installs web backdoor on locked computers.
• Proxmark3 - RFID/NFC cloning, replay, and spoofing toolkit often used for analyzing and attacking proximity cards/readers, wireless keys/keyfobs, and more.
• Thunderclap - Open source I/O security research platform for auditing physical DMA-enabled hardware peripheral ports.

Web application and resource analysis tools

• GTFOBins - Curated list of Unix binaries that can be used to bypass local security restrictions in misconfigured systems.
• LOLBAS (Living Off The Land Binaries and Scripts) - Documents binaries, scripts, and libraries that can be used for "Living Off The Land" techniques, i.e., binaries that can be used by an attacker to perform actions beyond their original purpose.

Reverse Engineering Tools

• Offensive Security Training - Training from BackTrack/Kali developers.

Social Engineering Books

• Ghost in the Wires by Kevin D. Mitnick & William L. Simon, 2011
• Social Engineering in IT Security: Tools, Tactics, and Techniques by Sharon Conheady, 2014
• The Art of Deception by Kevin D. Mitnick & William L. Simon, 2002
• The Art of Intrusion by Kevin D. Mitnick & William L. Simon, 2005
• Unmasking the Social Engineer: The Human Element of Security by Christopher Hadnagy, 2014

Social Engineering Tools

• Bugtraq (BID) - Software security bug identification database compiled from submissions to the SecurityFocus mailing list and other sources, operated by Symantec, Inc.
• CXSecurity - Archive of published CVE and Bugtraq software vulnerabilities cross-referenced with a Google dork database for discovering the listed vulnerability.
• China National Vulnerability Database (CNNVD) - Chinese government-run vulnerability database analoguous to the United States's CVE database hosted by Mitre Corporation.
• Common Vulnerabilities and Exposures (CVE) - Dictionary of common names (i.e., CVE Identifiers) for publicly known security vulnerabilities.
• Exploit-DB - Non-profit project hosting exploits for software vulnerabilities, provided as a public service by Offensive Security.
• HPI-VDB - Aggregator of cross-referenced software vulnerabilities offering free-of-charge API access, provided by the Hasso-Plattner Institute, Potsdam.
• Inj3ct0r - Exploit marketplace and vulnerability information aggregator. ([Onion service](http://mvfjfugdwgc5uwho.onion/).)
• National Vulnerability Database (NVD) - United States government's National Vulnerability Database provides additional meta-data (CPE, CVSS scoring) of the standard CVE List along with a fine-grained search engine.
• Open Source Vulnerabilities (OSV) - Database of vulnerabilities affecting open source software, queryable by project, Git commit, or version.
• US-CERT Vulnerability Notes Database - Summaries, technical details, remediation information, and lists of vendors affected by software vulnerabilities, aggregated by the United States Computer Emergency Response Team (US-CERT).
• Vulnerability Lab - Open forum for security advisories organized by category of exploit target.
• Vulners - Security database of software vulnerabilities.
• Vulmon - Vulnerability search engine with vulnerability intelligence features that conducts full text searches in its database.

Intentionally Vulnerable Systems as Docker Containers

• Bella - Pure Python post-exploitation data mining and remote administration tool for macOS.