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TCP reflection

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Tencent Cloud Developer
Tencent Cloud Developer
May 10, 2019 · Information Security

Analysis of Emerging TCP Reflection DDoS Attack Techniques and Defense Strategies

The paper examines novel TCP reflection DDoS methods that exploit CDN IP ranges and increasingly use pure ACK responses, outlines their handshake‑state behavior, and proposes a per‑connection tracking defense algorithm—implemented in Tencent’s DaYu platform—to detect and mitigate SYN/ACK, ACK, and RST reflection flows without affecting legitimate traffic.

DDoSPacket AnalysisTCP reflection
0 likes · 10 min read
Analysis of Emerging TCP Reflection DDoS Attack Techniques and Defense Strategies
Tencent Cloud Developer
Tencent Cloud Developer
May 14, 2018 · Information Security

Analysis of a Hybrid DDoS Attack Leveraging TCP Reflection on Cloud Gaming Services

Tencent Cloud mitigated a 31‑minute, 194 Gbps hybrid DDoS attack on a cloud gaming service that combined typical SYN/ICMP floods with a rare TCP‑reflection component sending spoofed SYN/ACK packets to common service ports, primarily from Chinese IDC servers, prompting advanced filtering and cloud‑based mitigation recommendations.

Cloud SecurityDDoSTCP reflection
0 likes · 10 min read
Analysis of a Hybrid DDoS Attack Leveraging TCP Reflection on Cloud Gaming Services