Description

This curriculum spans the technical, procedural, and coordination tasks performed during a multi-week incident response engagement, reflecting the iterative workflows of a SOC team managing a live breach from detection through regulatory reporting and posture refinement.

Module 1: Incident Detection and Alert Triage in High-Volume Environments

Configure SIEM correlation rules to reduce false positives from routine administrative activities without missing lateral movement indicators.
Implement dynamic thresholding for outbound data transfer alerts to account for legitimate business usage spikes.
Design alert severity levels that align with organizational risk appetite and response team capacity.
Integrate EDR telemetry with SIEM to enrich network-based alerts with host process and registry context.
Establish automated alert suppression for known benign IOCs during vulnerability scanning windows.
Develop playbooks for distinguishing between automated tooling noise and genuine reconnaissance activity.
Deploy machine learning models to baseline normal user behavior and flag deviations in real time.

Module 2: Forensic Data Collection and Chain of Custody

Select memory acquisition tools based on endpoint OS version and encryption status while minimizing system disruption.
Define retention policies for volatile data that comply with legal hold requirements and storage constraints.
Implement write-blockers and cryptographic hashing during disk imaging to preserve evidentiary integrity.
Coordinate with legal counsel to determine when to involve law enforcement in evidence handling procedures.
Document timestamps across disparate time zones and systems to reconstruct attack timelines accurately.
Use secure transfer protocols to move forensic images from isolated networks to analysis environments.
Validate forensic tool integrity using vendor-signed binaries and pre-use checksum verification.

Module 3: Threat Intelligence Integration and IOC Validation

Map external threat intelligence feeds to internal asset criticality to prioritize IOC scanning efforts.
Filter commercial threat feeds to exclude IOCs associated with geographies irrelevant to business operations.
Validate IOCs from ISACs against internal logs before initiating broad system sweeps.
Develop automated workflows to enrich detected IOCs with contextual data from threat databases.
Assess reliability scores of intelligence providers based on historical false positive rates.
Integrate TTPs from MITRE ATT&CK into detection rules to identify adversary behaviors, not just signatures.
Establish feedback loops to contribute anonymized breach data to trusted ISAC channels.

Module 4: Containment Strategies and Network Segmentation Trade-offs

Implement VLAN isolation for compromised subnets while maintaining availability for critical business functions.
Balance aggressive firewall rule changes against the risk of disrupting legacy systems with hardcoded dependencies.
Decide whether to sinkhole malicious domains or block them, based on intelligence-gathering objectives.
Use micro-segmentation policies in cloud environments to limit east-west movement without breaking workflows.
Temporarily disable user accounts versus resetting passwords based on evidence of credential theft.
Coordinate with network operations to schedule ACL updates during maintenance windows for core routers.
Preserve active C2 channels under monitoring to enable threat actor tracking before full disruption.

Module 5: Cross-Functional Incident Response Coordination

Define RACI matrices for breach response roles across IT, legal, PR, and executive leadership.
Establish secure communication channels (e.g., encrypted chat) for incident command teams during active breaches.
Conduct tabletop exercises with non-technical departments to clarify escalation paths and messaging protocols.
Integrate HR into response workflows when insider threat indicators are present.
Manage disclosure timelines in coordination with legal counsel to meet regulatory reporting windows.
Pre-approve press statements with corporate communications to ensure consistent external messaging.
Document all major decisions in the incident log for potential regulatory audits or litigation.

Module 6: Data Exfiltration Analysis and Impact Assessment

Correlate DLP alerts with authentication logs to determine whether exfiltrated data was accessed by unauthorized users.
Use file fingerprinting to identify specific documents exfiltrated when only partial data transfers are observed.
Estimate data sensitivity based on classification tags, storage location, and access controls in place.
Reconstruct exfiltration paths using proxy logs, DNS queries, and cloud storage API calls.
Determine whether encrypted payloads were transferred to assess decryption risk.
Engage data owners to validate whether exfiltrated datasets contain regulated information (e.g., PII, PHI).
Map compromised accounts to data access permissions to estimate blast radius.

Module 7: Regulatory Compliance and Breach Notification Requirements

Assess whether a data access incident meets the threshold for GDPR "personal data breach" notification.
Document evidence to support a safe harbor claim under HIPAA based on risk of harm analysis.
Coordinate with international subsidiaries to comply with local data breach laws in multi-jurisdictional incidents.
Prepare breach notification letters that include required elements without disclosing forensic methodology.
Engage third-party forensics firms to meet evidentiary standards for regulatory submissions.
Track 72-hour GDPR reporting deadlines using automated ticketing system escalations.
Preserve logs and reports in formats acceptable to supervisory authorities for audit purposes.

Module 8: Post-Incident Recovery and System Restoration

Determine whether to rebuild compromised systems from golden images or apply targeted remediation.
Validate system integrity using file integrity monitoring before reconnecting to production networks.
Reissue machine certificates and rotate service account passwords across affected environments.
Reconcile restored data from backups with logs to ensure no malicious modifications persist.
Implement enhanced monitoring on restored systems for signs of residual compromise.
Update configuration management databases (CMDB) to reflect changes made during incident response.
Conduct vulnerability scans on recovered systems before lifting containment controls.

Module 9: Lessons Learned and Security Posture Enhancement

Quantify detection and response timelines to establish baselines for future performance improvement.
Revise SIEM correlation rules based on gaps identified during the breach investigation.
Update endpoint detection policies to cover TTPs used by the adversary that were previously unmonitored.
Adjust user training content to address phishing techniques that led to initial compromise.
Reevaluate third-party risk assessments for vendors involved in the breach pathway.
Incorporate new threat intelligence into red team scenarios for future testing cycles.
Present findings to the board using risk-based metrics, not technical jargon, to justify security investments.