# Dysphoria Botnet Strengthens with Blockchain-Based Command System Next-gen IoT botnet becomes more resilient with blockchain technology. - **Source:** [The Hacker News](https://brifing.si/source/f944ec2b-8180-47bc-94de-57085b5a6563) - **Published:** 2026-07-27 - **Topic:** [Software & Engineering](https://brifing.si/c/engineering) - **Original article:** - **On Brifing:** https://brifing.si/s/ea827524-8974-4792-9664-b5fd417a43c7 ## The Rise of Dysphoria Botnet After the JackSkid operation, the reorganized Dysphoria botnet established a more resilient infrastructure with blockchain-based C2 and victim device relays. Researchers detected over 200,000 infected devices. ## Decentralized Structure with Blockchain Using Ethereum and Solana Name Services, the botnet bypasses traditional server takedown operations with its distributed architecture. It manages distribution nodes through ENS and SNS records. ## New NAT-Traversing Variant The relay-only variant that emerged in late June targets devices behind NAT with UPnP-based port mapping. It features traffic routing instead of DDoS modules. ## Exploiting Vulnerabilities The botnet exploits weak Telnet/SSH credentials and IoT vulnerabilities like CVE-2025-9528 in Linksys E1700, targeting routers, gateways, and cameras. Manufacturers' failure to release security updates increases the risk. ## Global Threat Scale With 4,401 active devices in China and 239,000 peak bots internationally, the botnet conducts daily DDoS attacks. Cloudflare's measured 31.4 Tbps attack from a similar botnet shows the potential threat scale. ## Protection Measures Experts recommend replacing unupdatable IoT devices, removing default credentials, and disabling unnecessary remote management features. Next-gen defense strategies are needed against blockchain-based botnets. ## Sources covering this story - https://thehackernews.com/2026/07/dysphoria-iot-botnet-adds-blockchain-c2.html — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._