Trend Micro Deep Discovery Inspector is a network security appliance available in physical or virtual form that monitors network traffic to detect advanced malware, targeted attacks, and ransomware. The solution provides network visibility by monitoring all network ports and over 105 different protocols, covering both north-south and east-west (lateral movement) traffic. The product uses custom sandbox analysis with virtual images that match specific operating system configurations, drivers, installed applications, and language versions. The sandbox includes a "safe live mode" and analyzes multi-stage downloads, URLs, and command-and-control communications. Detection capabilities include specialized detection engines that identify known and unknown patterns through reputation analysis. For ransomware detection, the system identifies mass file modifications, encryption behavior, and modifications to backup and restore processes. The solution provides network analytics with historical visibility up to 180 days, allowing security teams to trace attack entry points and impact. Deep Discovery Inspector supports standards-based threat intelligence sharing through STIX/TAXII and YARA formats. The product automates threat information sharing across multiple security solutions. Integration with Trend Micro Vision One enables correlation of threat events, attack lifecycle visualization, and prioritized response capabilities across managed and unmanaged devices including IoT, IIoT, printers, and BYOD systems.