Description

This curriculum spans the full incident lifecycle—from detection and containment to recovery and governance—with technical and procedural depth comparable to a multi-workshop incident response readiness program for a mid-sized enterprise facing targeted virus attacks.

Module 1: Incident Detection and Initial Triage

Configure EDR agents to enable real-time process monitoring and hash-based threat detection across endpoints, ensuring minimal performance impact on critical systems.
Integrate SIEM correlation rules with threat intelligence feeds to reduce false positives when identifying known malicious IP addresses or domains associated with virus campaigns.
Establish thresholds for anomalous file modification patterns (e.g., mass .exe renames or registry autorun changes) to trigger automated alerts without overwhelming analysts.
Define criteria for classifying an alert as a potential virus incident based on behavioral indicators such as lateral movement attempts or unexpected outbound C2 traffic.
Implement network segmentation rules that isolate endpoints exhibiting suspicious behavior while preserving forensic data for analysis.
Document and maintain a decision log for all triage actions, including time-stamped rationale for escalating or dismissing initial alerts.

Module 2: Containment Strategy and Execution

Decide between network-level isolation (VLAN quarantine) versus host-level shutdown based on the virus propagation mechanism and business-critical uptime requirements.
Deploy temporary firewall rules to block outbound connections to known C2 servers while allowing essential business services to remain operational.
Freeze scheduled tasks and disable WMI event subscriptions on compromised systems to prevent persistence mechanisms from reactivating.
Coordinate with application owners to suspend automated batch jobs that may inadvertently spread infected files across shared drives.
Preserve memory dumps and disk snapshots from affected systems before applying containment measures to ensure forensic integrity.
Implement read-only access on shared network folders exhibiting signs of file encryption or corruption to limit further damage.

Module 3: Forensic Analysis and Malware Reverse Engineering

Select specific memory analysis tools (e.g., Volatility or Rekall) based on the suspected malware family and available system artifacts.
Extract and hash suspicious binaries from disk and memory for submission to internal threat intelligence repositories and external sandboxes.
Map API call sequences from dynamic analysis to identify evasion techniques such as anti-sandbox checks or process hollowing.
Determine whether to analyze malware in an air-gapped lab environment or use virtualized sandboxes based on containment risk and resource constraints.
Correlate registry modifications with startup locations to identify persistence vectors used by the virus across reboots.
Document decryption routines or configuration blobs extracted from packed payloads to support decryption efforts for encrypted files.

Module 4: Eradication and System Remediation

Decide between full system reimaging versus targeted removal based on the depth of compromise and availability of clean configuration baselines.
Remove malicious entries from the Windows Registry, including autorun keys, service installations, and scheduled tasks, using automated scripts validated in test environments.
Update antivirus signatures and deploy on-demand scans across the enterprise using centralized management consoles prior to system restoration.
Validate the removal of all identified Indicators of Compromise (IOCs) before reconnecting systems to the production network.
Reissue machine account passwords and rotate Kerberos tickets for domain-joined systems that were compromised to prevent credential misuse.
Apply missing security patches related to the initial infection vector, such as unpatched RDP or Office vulnerabilities, before returning systems to service.

Module 5: Recovery and Service Restoration

Restore encrypted or corrupted files from offline backups only after confirming the backups predate the infection timeline.
Validate file integrity using cryptographic hashes when restoring from backup to detect potential backup contamination.
Coordinate with business units to prioritize system recovery based on operational criticality and dependencies.
Monitor restored systems for recurrence of malicious behavior during a defined observation period before declaring them stable.
Re-enable network services and firewall rules incrementally, verifying normal traffic patterns and absence of residual threats.
Update DNS and DHCP configurations if the virus altered network settings or injected malicious proxy configurations.

Module 6: Post-Incident Review and Reporting

Compile a timeline of key events from detection to recovery, including detection delay, response intervals, and system downtime.
Identify gaps in monitoring coverage that allowed the virus to propagate undetected, such as uninstrumented legacy systems.
Document root cause findings, including the initial attack vector (e.g., phishing attachment, RDP brute force) and exploited vulnerabilities.
Produce a technical report detailing malware behavior, IOCs, and affected systems for distribution to internal stakeholders and auditors.
Conduct a tabletop exercise with IT and security teams to validate lessons learned and update response playbooks accordingly.
Submit anonymized data to ISACs or sector-specific threat sharing groups in compliance with organizational disclosure policies.

Module 7: Strengthening Defenses and Preventive Controls

Enforce application whitelisting on high-risk systems to prevent execution of unauthorized binaries, balancing usability and security.
Implement stricter macro policies in Office applications and disable legacy Office add-ins known to be exploited by virus payloads.
Deploy network-level DNS filtering to block access to known malicious domains and newly registered domains with low reputation scores.
Introduce user behavior analytics (UBA) to detect anomalous file access patterns indicative of virus propagation or data exfiltration.
Update endpoint protection policies to enable exploit mitigation features such as ASLR, DEP, and control flow guard by default.
Schedule recurring red team exercises focused on virus delivery and lateral movement to test detection and response capabilities.

Module 8: Governance and Compliance Alignment

Map incident response activities to regulatory frameworks such as NIST SP 800-61, ISO/IEC 27035, or GDPR breach notification timelines.
Establish retention policies for incident logs, forensic images, and communication records in accordance with legal hold requirements.
Define escalation paths and notification procedures for involving legal, PR, and executive leadership based on incident severity.
Conduct a privacy impact assessment when handling personal data during forensic investigations to comply with data protection laws.
Review third-party vendor contracts to ensure incident reporting obligations and security controls are enforceable during supply chain compromises.
Audit access controls to incident management systems to prevent unauthorized modifications to case records or response tools.