File | Name- Butterfly-click-mod-forge-1.8.9.jar

Because "Butterfly Click Mods" are not open-source (unlike OptiFine or JEI), they are a prime vector for malware. Hackers love naming malicious files Butterfly-Click-Mod-Forge-1.8.9.jar to trick players.

Understanding the Butterfly-Click-Mod-Forge-1.8.9.jar for Minecraft File name- Butterfly-Click-Mod-Forge-1.8.9.jar