"Azure was hit by the "largest-ever" cloud-based distributed denial of service (DDoS) attack, originating from the Aisuru botnet and measuring 15.72 terabits per second (Tbps), according to Microsoft. On October 24, the Windows giant's cloud DDoS protection service auto-detected and mitigated the traffic tsunami - nearly 3.64 billion packets per second - so no customer workloads experienced any service interruptions, Microsoft's Sean Whalen said in a Monday blog."
"Aisuru is a new-ish Mirai-based IoT botnet that has been causing record-breaking DDoS attacks since it emerged in August 2024. This includes one in June 2025 that hit KrebsOnSecurity with 6.3 Tbps, which, according to infosec journo Brian Krebs, was the biggest attack Google had ever mitigated at the time. By October, Aisuru's operators had increased their capabilities to exceed 20 Tbps, according to Netscout principal engineer Roland Dobbins."
On October 24, Azure experienced a cloud-based DDoS attack measuring 15.72 terabits per second and peaking at nearly 3.64 billion packets per second. Azure's DDoS protection service auto-detected and mitigated the traffic so no customer workloads experienced service interruptions. More than 500,000 source IPs from various regions flooded a single UDP endpoint in Australia. The attack originated from the Aisuru botnet, a Mirai-based IoT botnet that infects home routers and cameras on residential ISP networks and operates as a DDoS-for-hire. Aisuru has produced record-breaking attacks since August 2024 and by October had capabilities exceeding 20 Tbps.
Read at Theregister
Unable to calculate read time
Collection
[
|
...
]