# psh\_flood **Explanation** psh\_flood is a security event in the Netography Fusion Portal that detects potential PSH floods. A Psh flood is when the TCP Push flag is set in the header of a packet, a flood of these types of packets may overwhelm the receiver. **What to Look For** When analyzing the results of the psh\_flood event, look for an unusually high number of TCP packets with the Push flag set. This type of traffic can cause performance issues on the network and may be indicative of a malicious attack. Look for any patterns or anomalies in the traffic, such as frequent bursts of Psh packets from the same IP address or network. Endpoint analysis may also reveal CPU or memory usage spikes, indicating the flood is impacting the local system. It is important to investigate and remediate any observed Psh floods promptly to prevent network downtime or data loss. **Related MITRE ATT\&CK Categories** [Impact: Network Denial of Service, Technique T1498 - Enterprise](https://attack.mitre.org/techniques/T1498) [Impact: Endpoint Denial of Service, Technique T1499 - Enterprise](https://attack.mitre.org/techniques/T1499) --- # 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/psh_flood.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.