How to define incident response playbook for specific threat groups

a high-level technical incident response playbook that can be customized for specific threat groups. Here is a suggested framework:

1. Preparation

• Identify the specific threat group you are preparing for.
• Develop a threat intelligence strategy to monitor and detect potential attacks.
• Establish a response team with roles and responsibilities.
• Establish communication channels with relevant stakeholders.
• Conduct regular training and awareness programs for employees.

2. Detection

• Monitor for suspicious activity and indicators of compromise (IoCs) associated with the specific threat group.
• Use intrusion detection and prevention systems (IDS/IPS) to detect and block attacks.
• Monitor logs and network traffic for unusual patterns of behavior.
• Use threat intelligence feeds to detect attacks in real-time.

3. Analysis

• Gather information on the attack, including the nature and extent of the compromise, and the attacker’s tactics, techniques, and procedures (TTPs).
• Determine the scope of the attack and the potential impact on critical systems and data.
• Analyze the IoCs to identify the type of attack and the specific threat group involved.
• Conduct a risk assessment to prioritize response activities.

4. Containment

• Isolate affected systems to prevent further compromise.
• Disable network access to infected systems and limit communication between systems.
• Apply patches and updates to vulnerable systems.
• Implement access controls and user authentication measures.
• Collect and preserve evidence for forensic analysis.

5. Eradication

• Remove malware and any other malicious code.
• Implement security measures to prevent similar attacks in the future.
• Restore data and systems from backups.
• Conduct a thorough analysis of the attack to identify root causes and improve security controls.

6. Recovery

• Restore normal operations as quickly as possible.
• Conduct a post-incident review to identify areas for improvement.
• Communicate with stakeholders on the impact of the attack and the steps taken to mitigate it.
• Update incident response plans and security controls based on lessons learned.

This is just a high-level framework that can be customized for specific threat groups. Each threat group has unique TTPs, so it’s important to adapt the response playbook to their specific tactics. It’s also important to involve legal, public relations, and other key stakeholders in the incident response process.