Threat Bulletin 1075: search endpoint flood against a gaming community platform in Latin America

On Thursday 10 April 2025 at 13:28 UTC, a search endpoint flood targeted a gaming community customer in Latin America. The attack peaked at 229.7 million requests per second and lasted 23 minutes. Traffic originated from 2136 autonomous systems in 112 countries, predominantly a Mirai-derived IoT botnet.

Vector search endpoint flood
Peak 229.7 million requests per second
Duration 23 min
Time to mitigation 0.440 s
Attack traffic reaching origin 0.078%
Legitimate traffic challenged 0.73%

Timeline

The attack was preceded by no stated motive. Request rates on the targeted routes exceeded their hourly baseline by a factor of 462 within 30 seconds. The risk score of participating clients crossed the challenge threshold automatically and proof-of-work difficulty rose with origin load.

What the customer saw

No customer-visible impact. The on-call engineer was notified and acknowledged the incident from the dashboard.

Recommendations

  • Enable authenticated origin pulls.
  • Lower challenge thresholds on authentication endpoints during high-risk events.
  • Add a dedicated rate limit for the targeted route.

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