Activity of Attack Sources Ongoing monitoring of attack sources reveals that 90% of them were active for no longer than 10 days. There were two reasons behind this. For one thing, in order to keep attack sources freshand prevent them from being blacklisted by defenders, attackers tended to use the...
Tag: DDoS attack
DDoS Attack Landscape 5
Controlled DDoS Attack Sources According to statistics, China was still home to the largest number of controlled DDoS attack sources (36.19%) in 2019, followed by the USA and UK. Although China's ranking remained unchanged in terms of the number, the proportion decreased compared with 2018. This indicates that China's DDoS...
DDoS Attack Landscape 4
Attack Distribution by Duration In 2019, the average duration of DDoS attacks was registered at 52 minutes, an 18% increase from 2018. We noticed that the longest DDoS attack in 2019 lasted around 20 days, far longer than attacks detected in previous years. In 2019, a DDoS attacks lasting less...
DDoS Attack Landscape 3
DDoS Attack Type Analysis Proportions of Different Attack Types In 2019, most frequently seen attacks were UDP floods, SYN floods, and ACK floods, which together accounted for 82% of all DDoS attacks. By contrast, reflection attacks took up only 10%. Compared with 2018, reflection attacks rose slightly in number, but...
DDoS Attack Landscape 2
DDoS Attack Counts and Peak Sizes Distribution of Peak Sizes From the monthly data in the last three years, the number of large-scale attacks (> 100 Gbps) soared in 2018 and then fluctuated at a high level over a two-year period. In 2017, the number of such attacks reached 11,800,...
DDoS Attack Landscape 1
Executive Summary In 2019, the average peak size of DDoS attacks rose steadily from 2018 to 42.9 Gbps, indicating that techniques employed by large and medium scale attacks are advancing year by year. After a sharp rise in 2018, super-sized DDoS attacks (> 300 Gbps) were relatively stabilizing in 2019,...
