The Practice of Network Security Monitoring: Understanding Incident Detection and Response amazon.com

Richard Bejtlich's book on IR.

Practical Memory Forensics amazon.com

The definitive guide to practice memory forensics. By Svetlana Ostrovskaya and Oleg Skulkin.

Operator Handbook: Red Team + OSINT + Blue Team Reference amazon.com

Great reference for incident responders.

Intelligence-Driven Incident Response amazon.com

By Scott J. Roberts, Rebekah Brown.

Incident Response with Threat Intelligence amazon.com

Great reference to build an incident response plan based also on Threat Intelligence. By Roberto Martinez.

Incident Response Techniques for Ransomware Attacks amazon.com

A great guide to build an incident response strategy for ransomware attacks. By Oleg Skulkin.

Incident Response & Computer Forensics, Third Edition amazon.com

The definitive guide to incident response.

Digital Forensics and Incident Response: Incident response techniques and procedures to respond to modern cyber threats amazon.com

by Gerard Johansen.

Crafting the InfoSec Playbook: Security Monitoring and Incident Response Master Plan amazon.com

by Jeff Bollinger, Brandon Enright and Matthew Valites.

Art of Memory Forensics amazon.com

Detecting Malware and Threats in Windows, Linux, and Mac Memory.

Applied Incident Response amazon.com

Steve Anson's book on Incident Response.

AccessData FTK Imager accessdata.com

Forensics tool whose main purpose is to preview recoverable data from a disk of any kind. FTK Imager can also acquire live memory and paging file on 32bit and 64bit systems.

ZeroDays CTF zerodays.ie

Shells youtube.com

Hackers tools youtube.com

Tutorial on tools.

WinHex winhex.com

A hexadecimal editor, helpful in the realm of computer forensics, data recovery, low-level data processing, and IT security

WeChall wechall.net

BinText web.archive.org

A small, very fast and powerful text extractor that will be of particular interest to programmers.

Exploit Writing Tutorials for Pentesters web.archive.org

UPX upx.sourceforge.net

the Ultimate Packer (and unpacker) for eXecutables

TryHackMe tryhackme.com

Hands-on cyber security training through real-world scenarios.

tools.web-max.ca tools.web-max.ca

base64 base85 md4,5 hash, sha1 hash encoding/decoding

Synalize It synalysis.net

/Hexinator -

Paros sourceforge.net

A Java-based HTTP/HTTPS proxy for assessing web application vulnerability

Autopsy sleuthkit.org

A digital forensics platform and graphical interface to The Sleuth Kit and other digital forensics tools

simples.kr simples.kr

(Korean)

IPED - Indexador e Processador de Evidências Digitais servicos.dpf.gov.br

Brazilian Federal Police Tool for Forensic Investigation

SECUINSIDE CTF secuinside.com

SecTools sectools.org

Top 125 Network Security Tools

RuCTFe ructf.org

Roppers Security Fundamentals roppers.org

Free course that teaches a beginner how security works in the real world. Learn security theory and execute defensive measures so that you are better prepared against threats online and in the physical world. Full text available as a gitbook.

Roppers Practical Networking roppers.org

A hands-on, wildly practical introduction to networking and making packets dance. No wasted time, no memorizing, just learning the fundamentals.

Roppers Computing Fundamentals roppers.org

Roppers CTF Fundamentals Course roppers.org

Free course designed to get a student crushing CTFs as quickly as possible. Teaches the mentality and skills required for crypto, forensics, and more. Full text available as a gitbook.

prompt(1) to win prompt.ml

XSS Challenges

Pliad CTF plaidctf.com

Pico CTF picoctf.com

PHD CTF phdays.com

Others owasp.org

OverTheWire - Vortex overthewire.org

OverTheWire - Semtex overthewire.org

OverTheWire - Krypton overthewire.org

OverTheWire - Drifter overthewire.org

Open Malware offensivecomputing.net

Wifi Jammer n0where.net

Free program to jam all wifi clients in range

Best Linux Penetration Testing Distributions @ CyberPunk n0where.net

Description of main penetration testing distributions

Missing Semester missing.csail.mit.edu

HxD mh-nexus.de

A hex editor which, additionally to raw disk editing and modifying of main memory (RAM), handles files of any size

Malware Unicorn Reverse Engineering Tutorial malwareunicorn.org

DEF CON legitbs.net