Managed Threat Hunting

About

Managed Threat Hunting (MTH) is a continuous, managed service that proactively searches for threats that may evade traditional security tools. Using your organization’s EDR and SIEM platforms, DEFION investigates indicators of compromise (IOCs), attacker techniques (TTPs), and suspicious behaviors across your infrastructure.

What MTH Delivers

• Periodic threat selection and investigation based on emerging campaigns, real incidents, and offensive research.

• Early detection of malicious activity that may go unnoticed.

• Specific recommendations to mitigate identified risks.

• Optional blocking of validated IOCs in EDR consoles.

Why DEFION

• Threats selected using real intelligence from DEFION’s Threat Intelligence, DFIR/MDR, and Red Team services.

• Autonomous and continuous service—no need for client-side coordination.

• Expert team in threat analysis and detection engineering.

• Immediate notification or escalation to Incident Response if compromise is confirmed.

Customer challenge

Traditional security tools such as SIEM and EDR are designed to detect known threats. But today’s adversaries move fast, adapt their tactics, and often remain undetected for weeks or months. Attackers use subtle techniques that bypass automated defenses, leaving organizations exposed to hidden compromises.

For leadership, the challenge is confidence: are advanced attackers already inside your systems without your knowledge? Without proactive hunting, the answer may only surface once damage is done.

DEFION’s solution

DEFION’s Managed Threat Hunting (MTH) is a continuous, proactive service that identifies malicious activity overlooked by automated defenses. Using your organization’s EDR and SIEM tools as a foundation, our analysts actively search for Indicators of Compromise (IOCs) and attacker behaviors.

By combining global threat intelligence, incident response insights, and red team techniques, DEFION delivers early detection of hidden compromises—before they escalate into business-impacting breaches.

Features and approach

• Proactive detection – Continuous hunts for IOCs, TTPs, and suspicious behaviors that bypass automated tools.

• Threat intelligence integration – Hunting priorities informed by the latest campaigns, incidents, and adversary techniques.

• EDR/SIEM-based – Service leverages your existing security infrastructure to maximize value.

• Investigative depth – DEFION analysts validate findings and provide detailed context.

• Escalation readiness – Confirmed compromises are handed directly to incident response teams for containment.

• Optional EDR blocking – Where available, related IOCs can be blocked automatically.

Service workflow

1. Kick-off – Access setup and communication channels defined.

2. Continuous hunts – Regular searches for threats using EDR/SIEM telemetry.

3. Investigation – Analysts enrich and validate suspicious activity with IOCs and TTPs.

4. Notification – Clients receive timely alerts, summaries, and remediation guidance.

5. Quarterly reporting – Consolidated review of hunts, findings, and improvements.

(The diagram on page 5 of the PDF shows how DEFION integrates intel from Threat Intel, DFIR/MDR, and Red Team sources to continuously identify, investigate, and mitigate latent threats.)

Deliverables

• Email notifications at the start and end of each hunt.

• Immediate alerts if compromise indicators are found.

• Quarterly report summarizing all investigated threats and key findings.

• Notifications of hunt initiation and completion.

• Alerts on indicators of compromise or suspicious activity.

• Quarterly reports detailing investigated threats, findings, and recommended improvements.

Benefits for your organization

• Reduced dwell time – Detect hidden attackers earlier, limiting potential damage.

• Executive assurance – Independent validation that threats aren’t silently bypassing your defenses.

• Optimized investments – Leverages existing EDR/SIEM tools with expert analysis layered on top.

• Regulatory resilience – Supports compliance by proving active detection and response capabilities.

• Actionable insights – Every alert includes clear remediation guidance, not just raw data.

Why DEFION’s MTH stands out

Unlike automated detection, DEFION’s Managed Threat Hunting applies human expertise to uncover attacker activity that machines miss. Our analysts combine live intelligence, red team expertise, and forensics experience to deliver meaningful findings—ensuring your leadership team gets visibility, not false confidence.