Threat investigation & hunting
A structured investigation workflow that brings network behavior, device context, and threat intelligence together.
Illustrative methodology · Not a real incidentUnderstanding the context.
This is an illustrative investigation framework based on general cybersecurity principles. It demonstrates how evidence can be organized and assessed; it does not claim that I handled a particular incident, used specific customer data, or achieved a hypothetical outcome.
The question to answer.
Determine whether an initial signal represents legitimate activity, an unresolved anomaly, or behavior that warrants escalation. Avoid treating a single indicator as a verdict.
Professional context.
Threat investigations and security analytics are part of the professional experience documented in my resume. The workflow presented here is an explanatory demonstration, not a documented case or a team accomplishment attributed to me.
An evidence-led workflow.
Initial signal
Record what was observed, when it occurred, and why it is unusual. Preserve the source and distinguish direct observation from inference.
Context and enrichment
Review device role, expected activity, network relationships, and relevant intelligence. Evaluate freshness and reliability of enrichment sources.
Behavioral analysis
Build a timeline and compare the activity to the surrounding behavior. Consider both a malicious hypothesis and plausible benign explanations.
Corroboration
Look for independent support in relevant network, authentication, endpoint, or application records available to the investigation. Identify visibility gaps.
Assessment
Summarize evidence, uncertainty, scope, and confidence. Separate confirmed observations from likely explanations and unresolved questions.
Recommended response
Recommend proportionate next steps to the responsible team: additional collection, escalation, containment review, or closure with rationale.
Analytical building blocks.
Listed as methodology inputs; not an assertion that every tool was used in a specific incident.
What can be claimed.
The output is a defensible assessment and a proportionate response recommendation. This illustrative workflow has no claimed incident outcome or quantified security impact.