Security News AISURU/Kimwolf Botnet Launches Record-Setting 31.4 Tbps DDoS Attack

[Miravi]

Content source

https://thehackernews.com/2026/02/aisurukimwolf-botnet-launches-record.html?&web_view=true

The distributed denial-of-service (DDoS) botnet known as AISURU/Kimwolf has been attributed to a record-setting attack that peaked at 31.4 Terabits per second (Tbps) and lasted only 35 seconds.

Cloudflare, which automatically detected and mitigated the activity, said it's part of a growing number of hyper-volumetric HTTP DDoS attacks mounted by the botnet in the fourth quarter of 2025. The attack took place in November 2025.

AISURU/Kimwolf has also been linked to another DDoS campaign codenamed The Night Before Christmas that commenced on December 19, 2025. Per Cloudflare, the average size of the hyper-volumetric DDoS attacks during the campaign was 3 billion packets per second (Bpps), 4 Tbps, and 54 requests per second (Mrps), with the maximum rates touching 9 Bpps, 24 Tbps, and 205 Mrps.

"DDoS attacks surged by 121% in 2025, reaching an average of 5,376 attacks automatically mitigated every hour," Cloudflare's Omer Yoachimik and Jorge Pacheco said. "In 2025, the total number of DDoS attacks more than doubled to an incredible 47.1 million."

The web infrastructure company noted that it mitigated 34.4 million network-layer DDoS attacks in 2025, compared to 11.4 million in 2024. In Q4 2025 alone, network-layer DDoS attacks accounted for 78% of all DDoS attacks. Put together, the number of DDoS attacks surged by 31% over the previous quarter and 58% over 2024.

In 2025 Q4, hyper-volumetric attacks increased by 40% compared to the previous quarter, witnessing a jump from 1,304 to 1,824. A total of 717 attacks were recorded in Q1 2025. The spike in the number of attacks has been complemented by an uptick in the size of these attacks, growing by over 700% compared to the large attacks seen in late 2024.

AISURU/Kimwolf Botnet Launches Record-Setting 31.4 Tbps DDoS Attack

AISURU/Kimwolf launched a record 31.4 Tbps DDoS attack as 2025 saw 47.1M incidents, rising botnet scale, and Android device abuse.

thehackernews.com

 

[Halp2001]

31 terabits in 30 seconds… basically it was like a horde of drums pounding on all the city gates at once. Luckily the sentinels raised the shield in time 🛡