# vnc\_scanning\_outside\_to\_inside **Explanation** The vnc\_scanning\_outside\_to\_inside NDM is designed to detect VNC scanning activity on a network. This activity can occur when an attacker attempts to move from an outside network to an inside network using the VNC protocol. The NDM monitors network traffic to identify suspicious VNC scanning behavior. **What to Look For** When this NDM is triggered, customers should examine their network traffic to look for any instances of VNC scanning activity. They should also investigate any suspicious IP addresses that may be attempting to access their network using VNC. Customers should take immediate action to block any unauthorized access attempts and strengthen their network security measures to prevent future attacks. **Related MITRE ATT\&CK Categories** [Reconnaissance: Active Scanning, Technique T1595 - Enterprise](https://attack.mitre.org/techniques/T1595) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.fusion.vectra.ai/detection-models/library/reconnaissance/vnc_scanning_outside_to_inside.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.