A: The original 1.8.9 file is generally clean, but fake "189 download" links are common. Always check the file size (should be ~2-4MB). If it's 500KB, it's a virus.
The original creator (Schnuri.tv) took down official download links after receiving a legal notice from Microsoft/Mojang due to the mod's explicit content violating brand guidelines. Consequently: jenny mod 189 work
If you are specifically staying on version 1.8.9 for performance or PvP reasons, there are many safe, high-quality mods that add "life" and NPCs to your world without the risks associated with the Jenny Mod: A: The original 1