Researchers Uncover Pre-Stuxnet 'fast16' Malware Targeting Engineering Software

2026-04-27

Fast16 is a Lua-based malware from 2005 that predates Stuxnet by five years. It targets high-precision calculation software like LS-DYNA, PKPM, and MOHID to inject systematic errors into engineering and physics simulations. The malware spreads through weak credentials and avoids systems with antivirus software installed. Forensic links tie it to NSA tools leaked by The Shadow Brokers.