The process of performing automated static and dynamic analysis of files against preloaded behavioral indicators for threat analysis is called advanced sandboxing. Advanced sandboxing is a feature of Cisco Secure Malware Analytics (Threat Grid), which is a cloud-based or on-premises solution that analyzes the behavior of suspicious files and URLs. Advanced sandboxing uses a combination of static and dynamic analysis techniques to examine the files against more than 700 behavioral indicators, such as registry changes, network connections, file modifications, and process injections. These indicators help to uncover stealthy and sophisticated threats, and provide the security team with detailed reports and actionable intelligence.
Advanced sandboxing also integrates with other Cisco security products, such as AMP, Firepower, and Email Security, to provide comprehensive malware protection across the network. Advanced sandboxing is different from other options, such as deep visibility scan, point-in-time checks, and advanced scanning, which are not specific processes or features of Cisco Secure Malware Analytics. Deep visibility scan is a generic term that refers to the ability to inspect network traffic and files for malicious activity. Point-in-time checks are periodic scans that detect malware at a specific moment, but do not provide continuous analysis or retrospective security. Advanced scanning is also a generic term that can refer to any scanning technique that goes beyond basic signature-based detection, such as heuristic analysis, machine learning, or behavioral analysis. References := Some possible references are:
* Cisco Secure Malware Analytics (Threat Grid)
* Malware Protection - Cisco AMP Advanced Malware Protection
* Cisco Secure Malware Analytics Data Sheet

We choose "Chat and Instant Messaging" category in "URL Category":

To block certain URLs we need to choose URL Reputation from 6 to 10.