# ntpreflect **Explanation** The ntpreflect event in Netography Fusion Portal looks for an NTP reflection attack. This is a type of DDoS attack in which an attacker sends a request to an NTP server and spoofs the source IP address to make it appear as if the request originated from the target server. The NTP server then responds to the target server, flooding it with traffic. **What to Look For** In order to examine the results of the ntpreflect event, customers should look for traffic originating from NTP servers that they do not control, and an unusually high amount of traffic to their own servers. Users should examine network logs and check endpoint logs for any signs of suspicious activity related to NTP servers. This event can help prevent NTP reflection attacks on a network, ensuring security. **Related MITRE ATT\&CK Categories** [Impact: Network Denial of Service, Technique T1498 - Enterprise](https://attack.mitre.org/techniques/T1498) --- # 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/denial-of-service/ntpreflect.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.