Cloudflare L7 DDOS detected

cloudflare

Classification:

attack

Tactic:

TA0040-impact

Technique:

T1498-network-denial-of-service

Set up the cloudflare integration.

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Goal

Detect when a Layer 7 Distributed Denial of Service (DDoS) occurs.

Strategy

The Cloudflare HTTP DDoS Attack Protection managed ruleset is a set of pre-configured rules used to match known DDoS attack vectors at layer 7 (application layer) on the Cloudflare global network. The rules match known attack patterns and tools, suspicious patterns, protocol violations, requests causing large amounts of origin errors, excessive traffic hitting the origin/cache, and additional attack vectors at the application layer.

This rule inspects the @Source attribute for the value l7ddos to determine that the L7 DDoS product has been triggered.

Triage and response

  1. Monitor application for indications of reduced performance or outages.
  2. Analyze identified traffic to ensure it is not a false positive that should be tuned.
  3. In addition, CloudFlare provides a response guide for all customers to reduce the impact of a DDoS attack on your application.