According to a report published by SentinelOne, the previously undocumented cyber sabotage framework dates back to 2005, primarily targeting high-precision calculation software to tamper with results. It has been codenamed fast16.

P.S. Lua (Portuguese for "Moon") is a lightweight, high-level, multi-paradigm programming language primarily designed for embedded use in applications. Created in 1993 in Brazil, it is renowned for its speed, portability, and small memory footprint (the interpreter is only about 247 kB). 

https://www.lua.org/about.html