Most people download Koaloader from shady file-sharing sites, YouTube video descriptions, or Discord DMs. A common scam is:

is the engine (the loader) that performs the technical task of injection.

acidicoala/Koaloader: A collection of DLLs that use ... - GitHub

Developed by acidicoala, is an open-source collection of proxy DLLs (Dynamic Link Libraries) designed for DLL search order hijacking .