Course Content
Module 1: Introduction to Cybersecurity Incident Response
This module highlights the significance of incident response, explores various cybersecurity incidents, and introduces the critical roles within an effective Incident Response Team (IRT).
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Module 2: Incident Response Lifecycle
This module covers the phases of the incident response lifecycle, from preparation and identification to containment, eradication, recovery, and lessons learned, ensuring a structured approach to handling cybersecurity incidents.
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Module 3: Preparation for Incident Response
This module focuses on preparing for cybersecurity incidents, including establishing policies, creating an incident response plan, setting up tools and technologies, and training response teams for effective readiness.
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Module 4: Identifying Cybersecurity Incidents
This module focuses on recognizing cybersecurity incidents, understanding indicators of compromise (IoCs), and utilizing monitoring systems, including SIEM, for effective incident detection and timely reporting.
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Module 5: Effective Incident Containment
This module focuses on strategies for effectively containing cybersecurity incidents, including isolating affected systems, maintaining communication, and preventing further escalation to minimize damage and impact.
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Module 6: Eradication of Threats
This module focuses on identifying the root cause of cybersecurity incidents, removing threats such as malware, securing configurations, and ensuring thorough verification of threat elimination to restore system integrity.
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Module 7: Recovery and Post-Incident Steps
This module focuses on restoring affected systems and services after an incident, ensuring system integrity, validating recovery efforts, and rebuilding confidence with stakeholders through effective post-incident procedures.
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Module 8: Lessons Learned and Continuous Improvement
This module focuses on conducting post-incident reviews, updating response plans, enhancing security measures, and leveraging lessons learned to continuously improve incident response strategies and organizational resilience.
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Module 9: Legal, Compliance, and Reporting
This module explains the legal obligations and compliance requirements during incident response, including reporting standards, communicating with authorities, and managing public and media interactions during a cybersecurity incident.
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Module 11: Incident Response in Different Environments
This module explores incident response strategies for different environments, including on-premises systems, cloud platforms, and mobile devices, with a focus on adapting techniques for specific threats like ransomware.
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Module 12: Simulating and Testing Incident Response
This module focuses on testing and simulating incident response through tabletop exercises, red team vs. blue team simulations, and penetration testing to evaluate and improve response readiness and effectiveness.
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Cybersecurity Incident Response Basics
About Lesson

System Restoration and Hardening

Once the threat is eradicated, the organization must restore its systems to a known secure state. This step involves rebuilding compromised systems, applying security patches, and reinforcing defenses to ensure that systems are protected from future attacks.

Key activities during system restoration and hardening include:

 

Restoring Clean Backups: If available, systems should be restored from clean, pre-incident backups to ensure that no traces of the malware or attack remain. In some cases, rebuilding systems from scratch may be necessary if backups are unavailable or compromised.

Applying Security Patches and Updates: Any known vulnerabilities that were exploited during the attack should be addressed by applying relevant security patches and updates. Ensuring that systems are up to date is a critical step in preventing similar incidents.

Reconfiguring Security Settings: Network configurations, firewall rules, and access controls may need to be adjusted to ensure that the systems are secure. For example, if the attacker exploited a specific vulnerability in a web server, additional hardening measures may need to be implemented to secure the service.

Strengthening Security Posture: System hardening techniques should be implemented to further secure the environment. This may involve disabling unnecessary services, limiting user permissions, implementing multi-factor authentication, and conducting regular vulnerability assessments.

Conducting Security Testing: Once systems have been restored and hardened, security testing should be performed to verify that the systems are secure and free from residual threats. This may include vulnerability scans, penetration tests, or other security assessments to ensure that no threats persist.