Kimwolf v7: An Evolution of the Kimwolf Botnet

A new version (v7) of the Kimwolf botnet, primarily targeting Android TV boxes, has been identified. This version significantly enhances DDoS attack capabilities through HTTP/2-based flooding and browser fingerprinting, alongside a layered C2 resolution system utilizing Ethereum Name Service (ENS) and a local proxy. The botnet employs a sophisticated infrastructure with multiple layers of redundancy, including a dedicated, single-tenant hosting provider in Russia, to evade detection. Kimwolf v7 utilizes a pseudo-random number generator (PRNG) and a dedicated high-performance UDP flood function optimized for ARM processors, and utilizes a layered C2 resolution system to survive domain takedowns. The botnet’s evolution demonstrates a shift from traditional Linux exploitation to ADB-based Android propagation, with operators actively adjusting operational security.