According to the latest edition of Prolexic's Quarterly Global DDoS Attack Report, the second quarter of 2013 saw DDoS attacks reach an average bandwidth of 49.4 Gbps, an increase of 925 percent over the second quarter of 2012.
Similarly, the average packet-per-second rate reached 47.4 Mpps, an increase of 1,665 percent over Q2 2012. The total number of DDoS attacks also increased by 33.8 percent over the second quarter of 2012.
"This quarter we logged increases for all major DDoS attack metrics, and some have been significant," Prolexic president Stuart Scholly said in a statement. "DDoS attacks are getting bigger, stronger and longer. We believe this growth is being fueled by the increasing prevalence of compromised Joomla and WordPress Web servers in increasingly large botnets."
The company also reports that average attack durations increased from 17 hours in Q1 2012 to 38 hours in Q2 2013.
"Attack durations are likely increasing because perpetrators are less concerned about detection and protecting their botnets," said Scholly. "The widespread availability of compromised Web servers makes it much easier for malicious actors to replenish, grow and redeploy botnets."
The full report is available here.