World's largest DDoS strikes US, Europe - Security - Technology - News - iTnews.com.auCloudFlare chief executive Matthew Prince said the attack tipped 400Gbps, 100Gbps larger than the previous record DDoS attack which used DNS reflective amplification.Prince said on Twitter "someone's got a big, new cannon" and the attack was the "start of ugly things to come". The nature of the NTP attack means it could be difficult to ascertain the location or identity of attackers since the initial requests that kick off the attacks are spoofed. Denial of security protection vendor Black Lotus published one of the first public reports on a NTP Reflection attack that amplified the traffic by a staggering factor of 58.5. "For example, 100Mbps of spoofed NTP traffic can cause 5.8Gbps of malicious traffic to strike the spoofed target," the report read.
NTP Amplification Attacks Using CVE-2013-5211 | US-CERT