On Monday 1 April 2024 at 01:41 UTC, a memcached amplification targeted a gaming community customer in Latin America. The attack peaked at 233.7 Gbps and lasted 162 minutes. Traffic originated from 2557 autonomous systems in 91 countries, predominantly a rented booter service.
| Vector | memcached amplification |
| Peak | 233.7 Gbps |
| Duration | 162 min |
| Time to mitigation | 0.608 s |
| Attack traffic reaching origin | 0.048% |
| Legitimate traffic challenged | 0.23% |
Timeline
The attack was preceded by a hacktivist channel announcing the target. Edge packet filters identified the flood by source port and payload signature and dropped it at line rate across 13 points of presence.
What the customer saw
The customer’s status page stayed green throughout; they learned about the attack from our notification.
Recommendations
- Enable log streaming to your SIEM for faster correlation.
- Keep origin IPs out of public DNS history.
- Enable authenticated origin pulls.
How does the proof-of-work challenge behave on older Android devices? Any numbers below Android 10?
Machine-readable ranges are at /ips.json and via the API.