Verisign released their quarterly distributed denial of service trends reports for Q4 2015.  The report represents data that the company gathered when mitigating attacks on the network and provides a unique view on evolution of DDoS attacks.

Here are some quick stats from the report and it covers data from October 1, 2015 through December 31, 2015:

  • An 85% increase in number of attacks in Q4 2015 compared to Q4 2014.
  • Largest attack seen was 65 Gbps and 125 Mpps (Million Packets Per Second)
  • 75 % of the attacks were UDP-Flood attacks with 15% being TCP floods and 10% being application layer attacks.
  • Q4 2015 saw increase in DNS reflection attacks and fragmentation attacks
  • 32% of the attacks were targeted at IT Services/Cloud/SAAS and 30% targeted media/entertainment

Compared to the data released by Psychz Networks, the data reflects similar growth in number of DDoS attacks.  Psychz has reported increase in UDP attacks for mainly hosting providers that offer Minecraft servers.  The gaming community tends to get attacked more because a game server that is offline or give poor experience will lead to players quitting and going to another game server.  The attacks are growing at a faster pace compared to the past and they are becoming very complex.  Due to customer demand, Psychz now offer 500 Gbps DDoS protection service utilizing Anycast.  The technology relies on multiple data centers to mitigate the attack on the IP address.

According to the report, DDoS attacks were continuous for a lot of the customers where the service provider was under attack for months.  The average attack according to the report was 6.88 Gbps and the largest attack seen by the network was around 65 Gbps which sent around 127 million packets per second.  Most of the targeted IPs fell in the category of hosting company and entertainment.  Financial sector saw around 15% of the attacks and public sector got around 10% of the attacks.  Finally, telcom only got around 8% of the attacks.