– SECURITY OPERATIONS
Use Case Rule Development
Detection Use Cases Built to Catch the Threats That Actually Matter.
Helping organizations build a precise, threat-informed detection capability through expert Use Case assessment, design, and deployment. Eristotle partners with SOC and security teams to translate business risk, log sources, and adversary behavior into tailored detection logic, turning noisy alerts into focused, high-fidelity signals that reduce false positives, accelerate response, and strengthen protection against the threats most relevant to your business.
Less Noise. Sharper Signal. Detection ThaT Matches Your Threat Reality.
Modern Security Operations Centers (SOCs) need precise, relevant detection rules, commonly known as “Use Cases”, to identify threats across increasingly complex hybrid environments. Generic, vendor-shipped rules rarely reflect the specific adversaries, technologies, and risks most relevant to your business, leading to high alert volumes, low-quality signals, and missed threats.
Eristotle’s Security Use Case Consultancy offers an end-to-end service, from assessing existing detection capabilities, to designing new threat-focused Use Cases, through to implementing and testing them within your SIEM platform. By aligning each Use Case with your organization’s unique risk profile and the adversaries most likely to target you, we help you detect and respond to attacks more effectively, while minimizing false positives and operational overhead.
The service is composed of three primary components, which can be engaged independently or as a cohesive program:
1. Use Case Rule Assessment
- Objective, Evaluate current detection capabilities, review data sources, and identify coverage gaps against known threats and frameworks (e.g., MITRE ATT&CK)
- Key Activities:
- Analyzing existing SIEM rules, reports, and dashboards
- Assessing relevant log sources and historical incidents
- Mapping potential threats to industry-specific risk scenarios
- Delivering recommendations for improvement and future Use Case needs
2. Use Case Development
- Objective, Design customized, threat-specific detection Use Cases that address both industry and organizational requirements
- Key Activities:
- Conducting workshops to identify business-critical systems, relevant adversaries, and past incidents
- Using threat modeling approaches such as the Cyber Kill Chain™ and MITRE ATT&CK to pinpoint detection opportunities
- Creating detailed Use Case design documents, including logic, data requirements, testing guidelines, and ongoing maintenance procedures
3. Use Case Deployment
- Objective, Implement newly designed Use Cases into the client’s SIEM and validate their effectiveness through rigorous testing
- Key Activities:
- Configuring the SIEM with new detection rules
- Executing a tailored test plan to ensure each Use Case triggers accurately while avoiding excessive false positives
- Fine-tuning performance and verifying minimal impact on SIEM capacity
- Providing final documentation and handover to the client’s SOC team
Aligned to ISOBOK™ – A Consensus Driven Standard
ISOBOK™ is developed through a rigorous consensus-driven standards development process and incorporates the collective wisdom and experience of experts in the field from around the world. It defines the skills and knowledge required by ISO professionals.
- Contains a description of generally accepted practices for the establishment of Information Security Offices.
- Community driven and consensus based, continuously updated through iterations.
- Techniques are transferable with option to modify concepts and best practices for wide range of organizational contexts.
- Includes the highly valued Reporting Framework.
1. Security Leadership
- Defines the ISO’s role, competencies, and mindset, including the different types of ISOs.
- Establishes the security organisation’s structure, charter, and board-level mandate.
- Aligns with industry standards and frameworks to develop a comprehensive security strategy.
- Covers setting up budgets, initiating security programs, and embedding the function into enterprise governance.
2. Security Culture
- Emphasizes that humans are the final line of defense and central to effective security.
- Promotes a human-centric approach through awareness, training, and behavior-shaping initiatives.
- Uses phishing simulations, access hygiene practices, and continuous reinforcement to improve behaviors.
- Encourages a feedback-driven culture of continuous improvement and user engagement.
3. Security Governance
- Establishes governance through policies, frameworks, ISMS, and the 3 Lines of Defense model.
- Defines risk management approaches, including qualitative/quantitative methods, tolerance, and appetite.
- Integrates compliance, audit, and control mechanisms to align security and business risk.
- Addresses fraud prevention, governance councils, and harmonization between compliance and security.
4. Security Advisory
- Advises on security trends, frameworks, and standards, supporting strategic and operational decisions.
- Applies a layered defense model and reviews risks across technology domains.
- Offers guidance on integrating emerging technologies and securing IT/OT environments.
5. Security Operations
- Aligns security operations with business goals through a service-based SOC model.
- Plans and executes incident and crisis management using structured detection and response frameworks.
- Defines SOC team roles and leverages platforms like SIEM, SOAR, and threat intelligence tools.
6. Security Reporting
- Delivers tiered reporting for operational, management, and board-level audiences.
- Ensures regulatory, legal, and external stakeholder reporting meets compliance obligations.
- Uses KPIs, KRIs, dashboards, and threat intelligence to communicate performance and risk posture.
- Follows best practices for effective, actionable, and transparent security reporting.
Additionally, this servcie draws on AIBOK, CWBOK, and Eristotle competency frameworks for breadth and depth to ensure consistency, credibility, and transferability across engagements.
Key Objectives
- Align Detection with Business Risk and Threat Reality
- Build Use Cases targeted at the adversaries, TTPs, and scenarios most relevant to your business
- Prioritize detection of attacks on critical systems, data, and processes
- Move beyond generic rules to threat-informed, business-aligned detection
- Assess and Close Detection Coverage Gaps
- Evaluate existing SIEM rules against recognized frameworks (MITRE ATT&CK, kill chain)
- Identify coverage gaps across data sources, threat scenarios, and attack stages
- Prioritize remediation based on risk, feasibility, and value
- Design High-Quality, Maintainable Use Cases
- Produce detailed Use Case design documents covering logic, data, and testing
- Build in maintainability, tuning, and lifecycle management from the outset
- Ensure Use Cases can be explained, defended, and improved over time
- Deploy and Validate Use Cases with Confidence
- Configure detection rules cleanly into the SIEM with proper documentation
- Validate effectiveness through structured testing and tuning
- Minimize false positives, alert fatigue, and operational overhead
- Establish a Repeatable Use Case Lifecycle
- Embed Use Case development, tuning, and retirement into BAU SOC operations
- Align Use Case processes with threat intelligence, red teaming, and lessons learned
- Build internal capability for ongoing, sustainable detection engineering
Business Outcomes & Benefits
- Identification of Gaps in Detection Capability
- Clear view of existing detection coverage and where it falls short
- Actionable insight to guide future planning and investment
- Preparedness for emerging threats, adversaries, and attack techniques
- Threat Detection Aligned to Business Needs
- Detection rules focused on the specific risks and adversaries most relevant to you
- More effective alerts with higher fidelity and fewer false positives
- Reduced noise, analyst fatigue, and wasted investigation effort
- Clear Roadmap for Future Use Case Requirements
- Structured prioritization of detection scenarios and log source investments
- Connection between known threats, actionable log sources, and detection logic
- Foundation for continuous improvement aligned with evolving threats
- Streamlined Use Case Deployment and Testing
- Each Use Case fully operational within the SIEM, validated through structured testing
- Consistent performance, accuracy, and maintainability across the ruleset
- Faster path from design to production with reduced operational risk
- Improved ROI and Risk Reduction
- Resources concentrated on threats that matter most to the business
- More efficient SOC operations with reduced time wasted on low-value alerts
- Shorter dwell time for sophisticated, targeted attacks
- Stronger SIEM Performance and Efficiency
- Optimized Use Cases that reduce SIEM load, licensing pressure, and false positives
- Rationalization of legacy rules, improving overall platform health
- Better alignment between data ingest, detection content, and SOC workflows
- Reduced MTTD and MTTR
- Faster detection through targeted, high-fidelity Use Cases
- Quicker, more informed analyst response with better alert context
- Stronger containment, recovery, and overall incident handling
- Enhanced Stakeholder and Regulatory Confidence
- Demonstrable alignment with MITRE ATT&CK and recognized frameworks
- Stronger evidence of threat coverage for audits, regulators, and insurers
- Credible narrative for boards, committees, and executive sponsors
Key Features
- Holistic Detection Assessment
- Evaluation of current SOC rules, log sources, historical threats, and incident history
- Identification of critical coverage gaps across frameworks and TTPs
- Prioritization based on business risk, feasibility, and impact
- Custom Use Case Design
- Threat-focused detection logic tailored to business context and vertical nuances
- Alignment with recognized frameworks such as MITRE ATT&CK and the Cyber Kill Chain™
- Detailed documentation covering logic, data, testing, and maintenance
- Seamless Implementation and Testing
- Deployment of Use Cases directly into the SIEM environment
- Validation through structured testing, including performance and false-positive checks
- Fine-tuning to ensure optimal accuracy and efficiency
- Threat-Centric, Multi-Tiered Framework
- Baseline Use Cases, foundational detections applicable across most environments
- Industry-Standard Use Cases, sector-specific detection aligned to common threats
- Organizational Threat-Centric Use Cases, tailored detections based on your specific adversary profile, critical assets, and risk landscape
- Alignment with Threat Intelligence and Threat Hunting
- Integration of CTI insights into Use Case design and prioritization
- Synergy with threat hunting playbooks to close detection gaps
- Continuous feedback loop from incidents, hunts, and red team findings
- Maintainability and Lifecycle Management
- Structured Use Case catalog with version control and governance
- Processes for tuning, retirement, and replacement of detection content
- Alignment with SOAR, case management, and analyst workflows
- SIEM-Agnostic Expertise
- Experience across major SIEM platforms and detection languages
- Translation of Use Cases between platforms during migration
- Best practice guidance regardless of vendor or deployment model
- Alignment with Industry Standards and Eristotle Frameworks
- Aligned with NIST, MITRE ATT&CK, and recognized SOC best practice
- Grounded in ISOBOK™ and Eristotle competency frameworks
- Consistent, credible, and transferable approach across engagements
Deliverables
Depending on engagement scope, clients may receive one or more of the following:
- Assessment Deliverables
- Use Case Assessment Report (PDF)
- Coverage analysis, gap identification, and framework alignment
- Evaluation of existing detection rules, log sources, and historical threats
- Detection Coverage Heatmap
- Visual mapping against MITRE ATT&CK and kill chain frameworks
- Prioritized Use Case Roadmap
- Recommended Use Cases by risk, feasibility, and business value
- Use Case Assessment Report (PDF)
- Design Deliverables
- Use Case Design Documents
- Detailed detection logic, data requirements, and testing strategies
- Reporting templates, alerting criteria, and analyst response guidance
- Tiered Use Case Catalog
- Baseline, industry-standard, and organizational threat-centric detections
- Threat Modeling Artifacts
- Kill chain / ATT&CK-aligned threat models for critical business scenarios
- Use Case Design Documents
- Deployment Deliverables
- Deployment Test Plan
- Strategy and cases for validating each new rule
- Performance and false-positive checks, tuning criteria
- Implemented Security Use Cases
- Fully configured detection content loaded into the SIEM
- Overview documentation and validated test results
- Tuning and Optimization Notes
- Recommendations for ongoing maintenance, tuning, and refinement
- Deployment Test Plan
- Governance & Lifecycle Deliverables
- Use Case Lifecycle Framework
- Processes for creation, review, tuning, and retirement
- Use Case Governance Model
- Roles, responsibilities, and review cadences for detection content
- Handover Pack
- Documentation, test results, and knowledge transfer materials
- Use Case Lifecycle Framework
- Executive & Reporting Deliverables
- Executive Presentation (PowerPoint)
- Summarized findings, recommendations, and next steps
- Suitable for board, executive, and committee audiences
- Board Briefing Narrative(where applicable)
- Strategic framing of detection maturity, risk, and investment
- Executive Presentation (PowerPoint)
How We Deliver
Eristotle utilizes a consultative, workshop-based approach tailored to your SIEM platform, operating model, and business context. We combine deep technical expertise with a threat-informed methodology to ensure every Use Case is accurate, maintainable, and aligned with the risks that matter most.
- Discovery & Scoping
- Engagement with SOC leadership, detection engineers, and key stakeholders
- Confirmation of scope, objectives, SIEM platforms, and success criteria
- Alignment with existing detection strategy and operational priorities
- Assessment
- Interviews and workshops with SOC and engineering teams
- Review of existing SIEM rules, reports, dashboards, and incident history
- Analysis of log sources, data quality, and coverage against frameworks
- Design
- Translation of identified threats, business priorities, and log sources into comprehensive Use Case documents
- Application of multi-tiered methodology (Baseline, Industry Standard, Organizational Threat-Centric)
- Integration of threat intelligence, kill chain, and MITRE ATT&CK mappings
- Deployment
- Configuration of Use Cases directly into the SIEM
- Execution of structured testing against real-world scenarios
- Fine-tuning for optimal performance, accuracy, and minimal false positives
- Validation & Iteration
- Review of alerts, false positives, and analyst feedback
- Continuous tuning and refinement across the deployment phase
- Confirmation of coverage improvement and detection effectiveness
- Handover
- Presentation of final rule sets, documentation, and test results
- Knowledge transfer sessions with SOC and detection engineering teams
- Smooth transition to BAU operations and lifecycle management
- Ongoing Advisory(optional)
- Continued support for Use Case evolution, tuning, and expansion
- Integration with CTI, threat hunting, and red team findings
- Pathway to related Eristotle services for sustained value
By combining expert assessment, targeted Use Case design, and robust deployment and testing processes, Eristotle’s Security Use Case Consultancy equips organizations with a finely tuned threat detection framework, enhancing the SOC’s ability to identify and mitigate risks specific to their operational landscape.
Ready to Sharpen Your Detection and Cut Through the Noise?
Partner with Eristotle to assess, design, and deploy Use Cases that are precise, threat-informed, and aligned with your business, reducing false positives, strengthening SOC performance, and catching the threats that actually matter. Book a free 30-minute discovery call with an Eristotle advisor. No commitment required.