UserGate Antivirus, included in the optional Advanced Threat Protection module, makes it possible to provide a high level of user protection without reducing network throughput. This module sends the signatures of uploaded files and scripts to the cloud. UserGate supports a database containing hundreds of thousands of dangerous files and script signatures that is updated hourly from a number of non-proprietary systems and sandboxes. This approach is extremely effective at high load because it blocks malicious files, addressing zero-hour problems without negatively affecting system performance.
Additional Heuristic Antivirus module provides more complex traffic check.