<img alt="" src="https://secure.leadforensics.com/89462.png" style="display:none;">

DDoS Threat Report 2019 Q2

DNS amplification attacks swelled in Q2 2019, with the amplified attacks spiking more than 1,000% compared with Q2 2018. Nexusguard researchers attributed Domain Name System Security Extensions (DNSSEC) with fueling the new wave of DNS amplification attacks, which accounted for more than 65% of the attacks last quarter.

  • Multiple government domains (as well as paypal.com) fell victim to rampant DNS abuses, likely due to many of these domains deploying DNSSEC to the top-level .gov domain.
  • “Bit and Piece” Attacks continued to spread this quarter, adopted for attacks across Europe, North America and Africa.
  • Mobile devices also continued to contribute to DDoS attacks, which primarily originated from iOS mobile devices in addition to botnet-hijacked Windows machines.



Table compares the amplification factors of the 10 most frequently abused domains before and after DNSSEC adoption. Again using aids.gov as an example, the domain’s DNS server amplification power surged to more than 45.28X (up from 4.53X) after DNSSEC. Clearly, DNSSEC is a very cost-effective resource for attackers seeking to reflect amplification attacks.

You may be interested in

DDoS Threat Report 2020 Q2

A shift in attack tactics by perpetrators in Q2 2020, saw a 570% increase in bit-and-piece attacks compared to the same period last year. Attackers adopted a more elaborate practise of bit-and-piece attacks to launch various amplification and UDP-based attacks to f...

DDoS Threat Report 2020 Q1

In the first quarter of the year, DDoS attacks rose more than 278% compared to Q1 2019 and more than 542% compared to the last quarter. While working from home has become the new norm due to COVID-19 pandemic restrictions, heavy use and reliance of online services ...

DDoS Threat Report 2019 Q4

An unprecedented concentration of DDoS attacks on US networks was observed, with more than 1,000 victims identified in various states. Whether motivated by politics, profiteering, crime or other malicious purposes, attacks were frequent and impactful. What’s more, ...

DDoS Threat Report 2019 Q3

DNSSEC (Domain Name System Security Extensions) remain the main driver of growth of DNS amplification attacks in the quarter, yet our analysts have detected a sharp and concerning rise in TCP SYN Flood attacks. TCP SYN Flood is not a new method, but findings indicate that techniques have grown in...