List of tools for Incident Response and Digital Forensics

Event Logging & Management

• AlienVault OSSIM - The Open Source SIEM
• AlienVault USM- Unified Security Management (USM) Anywhere

Intrusion Detection

• Snort - Network Intrusion Detection & Prevention System
• OSSEC - World's Most Widely Used Host Intrusion Detection System - HIDS
• Suricata - Open-Source IDS / IPS / NSM engine

Availability Monitoring

• Nagios - The Industry Standard In IT Infrastructure Monitoring

Forensic Analysis

• The Volatility Foundation - Open Source Memory Forensics
• FTK® Imager | AccessData
• LastActivityView - View the latest computer activity in Windows OS
• USB Historian - 4Discovery
• The Sleuth Kit
• SANS SIFT - Digital forensic examination workstation
• Redline - Free Security Software

Threat Intelligence & Threat Hunting

• Open Threat Exchange (OTX) - AlienVault | AT&T Cybersecurity
• YARA - The pattern matching swiss knife for malware researchers
• VMware Carbon Black EDR | Threat Hunting and Incident Response for Hybrid Deployments | VMware Carbon Black - 

Security Awareness

• SANS Security Awareness - Security Awareness Training
• KnowBe4 - Security Awareness Training
• PhishLabs - Security Awareness Training
• Infosec Institute - Security awareness & anti-phishing training
• Cofense - Phishing Awareness Solutions

Backup & Data Protection

• Carbonite - Back up and protect files with Carbonite Safe
• Barracuda Backup - Totally secure. Amazingly simple. Utterly reliable
• Infrascale - Enterprise Cloud Backup