About Malware Testing; Test Strategies & Common Mistakes; Exploiting the Testing System; Testing Heuristic Detections; The Importance of Re-creating In-the-wild Infection Conditions for Testing Multi-Layered Security Products; Maintaining a Malware Collection; Determining & Sorting out the Trash; Building & Leveraging White Database for Antivirus Testing; The Difference between Track and Testing Performance; The VTC experience.