Building Detection Logic from Malware Artifacts
Do not stop at IOCs
Hashes and domains are useful, but they age quickly. Detection engineering becomes stronger when teams also extract behavior: process chains, persistence actions, command execution, registry paths, file writes, scripts, parent-child relationships, and network patterns.
Map behavior to telemetry
Each finding should be mapped to available telemetry such as EDR events, Microsoft Defender data, SIEM logs, identity logs, proxy data, DNS data, and cloud control plane events. This keeps rules grounded in data the customer actually has.
Write detections that operators can use
A useful rule includes logic, context, expected false positives, severity, investigation steps, and response notes. Emin Labs uses malware and intelligence evidence to help teams build rules, KQL hunts, Sigma logic, YARA ideas, and validation notes.
Validate and tune
Detection is not complete until the team can test it, tune it, and explain when it should trigger. The best outcome is a detection package that improves daily SOC work instead of creating noise.
