Rust ransomware

A previously unseen Rust-based ransomware family named Spirals was deployed in a double extortion attack against a South Asian IT services company in June 2026. The attackers compromised an internet-facing IIS web server via an ASP.NET web shell, established multiple redundant C2 channels using revsocks, Chisel, and Cloudflare tunnel, performed credential theft via SAM and LSASS dumps, and deployed the ransomware payload via PsExec across the network within 24 hours of initial access. The ransomware uses AES-128 file encryption with ECDH P-256 key wrapping and includes capabilities for defense evasion, lateral movement, and process termination.