Symantec Observed Spike in DNS Amplification Attacks

By Brian Prince on October 22, 2014 Excerpt In the report, Symantec states that the use of the Network Time Protocol (NTP) amplification method jumped substantially between January and July, but is now on the decline. Generic Internet Control Message Protocol (ICMP) flood attacks increased by 293 percent by the end of March, but dropped to 75 percent of the total amount of attacks observed in January by August.
 
"It is not uncommon to see fluctuations of different DDoS methods being used over time, as there are many factors at work that influence this," according to the report. "Different attack groups have different preferences for their DDoS campaigns, for example ICMP flood attacks were one of the main methods used by the Darkness/Optima botnet. Some methods, particularly amplification attacks, may no longer work that well."
 
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