On Friday 12 April 2024 at 08:22 UTC, a carpet-bombing UDP flood targeted a fashion retail customer in the UK. The attack peaked at 386.0 Gbps and lasted 157 minutes. Traffic originated from 2329 autonomous systems in 96 countries, predominantly a rented booter service.
| Vector | carpet-bombing UDP flood |
| Peak | 386.0 Gbps |
| Duration | 157 min |
| Time to mitigation | 0.177 s |
| Attack traffic reaching origin | 0.001% |
| Legitimate traffic challenged | 0.29% |
Timeline
The attack was preceded by a breaking political story. Edge packet filters identified the flood by source port and payload signature and dropped it at line rate across 12 points of presence.
What the customer saw
Checkout conversion was unchanged compared with the same hour of the previous week.
Recommendations
- Enable log streaming to your SIEM for faster correlation.
- Add a dedicated rate limit for the targeted route.
- Review allow-listed partner ranges quarterly.