"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."
""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."
AISURU/Kimwolf executed a record DDoS attack that peaked at 31.4 Terabits per second and lasted 35 seconds in November 2025. Cloudflare automatically detected and mitigated the activity and linked the botnet to a December campaign codenamed The Night Before Christmas. Average campaign rates reached 3 billion packets per second, 4 Tbps, and 54 requests per second, with maxima up to 9 Bpps, 24 Tbps, and 205 Mrps. Cloudflare mitigated 34.4 million network-layer DDoS attacks in 2025 and recorded a total of 47.1 million DDoS attacks that year. Hyper-volumetric attacks rose sharply in Q4 2025, and AISURU/Kimwolf has compromised over two million predominantly off-brand Android TVs, often via residential proxy networks like IPIDEA, which Google disrupted.
Read at The Hacker News
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