Comodo Valkyrie analyzes files for malicious activity through comprehensive static and dynamic analysis, leveraging both automated techniques and human expert review. It employs multiple detection methods, including static analysis, dynamic analysis, signature-based detection, trusted vendor validation, reputation systems, and Comodo's VirusScope system. Valkyrie identifies zero-day threats by examining runtime behavior and provides detailed dashboards and reports for threat assessment. It also integrates with tools like the Unknown File Hunter, which scans networks for unknown files to upload for analysis, offering unparalleled protection by detecting malware before traditional antivirus solutions.