Findings from a recent study should make network administrators concerned. The DDoS Trends Report for the second and third quarters of 2017 indicates that the number of distributed denial of service (DDoS) attacks have been rapidly increasing. The report is based on data gathered through Corero customers.
About a year after the DDoS attack on Dyn’s DNS servers, one of the biggest ever, DDoS attacks are still rising in frequency. One finding really surprises me: targets experienced an average of 3.6 DDoS attacks per day in the fourth quarter of 2016, with an average total of 328 attacks during that time period.
For the third quarter of 2017, targets faced an average of 8 attacks per day, with an average total of 710 attacks during that time period. That means DDoS attacks have more than doubled in frequency in less than a year. That’s certainly cause for concern.
DDoS Attack Duration is Getting Shorter
Catch them while you can, because the report finds that individual DDoS attacks are getting smaller in magnitude and duration.
In the fourth quarter of 2016, 5% of mitigated attacks averaged over 5GB in magnitude, 18% averaged between 1 and 5GB, and 79% averaged below 1GB. But in the third quarter of 2016, 4% of mitigated attacks averaged over 5GB in magnitude, 15% averaged between 1 and 5GB, and 81% averaged below 1GB.
The smaller magnitude of DDoS attacks correlate to a decrease in duration. In the fourth quarter of 2016, 17% of attacks were between 6 and 10 minutes, and 57% of attacks lasted 5 minutes or less. Compare that to the third quarter of 2017. For that period, 13% of attacks were between 6 and 10 minutes, and 58% of attacks lasted 5 minutes or less.
Service Flood Attacks are the (Read more...)
This is a Security Bloggers Network syndicated blog post authored by Kim Crawley. Read the original post at: Cylance Blog