The network security company Cloudflare announced on November 6th the global DDoS attack report for the third quarter of 2021. The report shows that the number of global DDoS attacks in the quarter reached a record level, an increase of 44%. During the quarter, there were several record-breaking HTTP DDoS attacks, reaching the TB level, up to 17.2 million rps (requests per second) . One time was for financial companies.
The United States received the most attacks in the quarter , but the United Kingdom and Canada also ranked very high on the list. Compared with the previous quarter, the average number of attacks on computer software, gaming, gambling companies, IT and Internet companies increased by 577%. Among them, the number of attacks in the Middle East and Africa increased by 80%.
Cloudflare stated that Morocco experienced the world's largest DDoS attack in the third quarter, during which 3 out of every 100 data packets were DDoS attacks . Although SYN and RST are the main methods used by attackers, the company found that the number of DTLS attacks has increased sharply, increasing by 3549% from the previous month. The researchers pointed out that the attackers targeted VoIP service providers to launch large-scale DDoS attacks in an attempt to paralyze their services.
Cloudflare data shows that most of the attack traffic in the third quarter came from devices and servers in China, the United States and India , but the number of attacks from China fell by 30%.
IT Home understands that with the rapid growth of IoT devices, some hackers will hijack such devices for DDoS attacks. The report pointed out that the Meris botnet is made up of such devices, and it has become one of the largest botnets in the world . Meris has been attacked by users on network organizations around the world, including news sites such as KrebsOnSecurity.
Cloudflare said that some routers have stronger computing performance and can provide more powerful attacks than smart speakers and smart cameras. Fortunately, although the peak attack capability of the Meris botnet can reach 1.2Tbps, it did not cause serious damage.
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