NTP-amplification DoS on game servers
This is pretty crazy...I was reading about the game server attacks a few days ago (affected my beloved LoL! ) and apparently it was carried out by DerpTrolling with an Ion Cannon (which is a generic DDoS tool) and called it the "Gaben Laser Beam" (after Valve founder Gabe Newell who I met this year at LinuxCON )
DoS attacks that took down big game sites abused Web
By manipulating the requests to make them appear as if they originated from one of the gaming sites, the attackers were able to vastly amplify the firepower at their disposal. A spoofed request containing eight bytes will typically result in a 468-byte response to a victim, a more than 58-fold increase.
"Prior to December, an NTP attack was almost unheard of because if there was one it wasn't worth talking about," Shawn Marck, CEO of DoS-mitigation service Black Lotus, told Ars. "It was so tiny it never showed up in the major reports. What we're witnessing is a shift in methodology."
...Correlating claims DERP Trolling made on Twitter with attacks Black Lotus researchers were able to observe, they estimated the attack gang had a maximum capacity of about 28Gbps.
DoS attacks that took down big game sites abused Web