To help you find the best solution for your needs, could you share:

They land on a shady, ad-heavy forum or blog promising a 100% working, pre-activated file.

A free, open-source command-line tool. It is widely considered the gold standard for downloading video and audio from thousands of sites safely without ads or bloatware. Use Legitimate Software

The classic story of downloading cracked software typically plays out in a predictable, frustrating, and often dangerous sequence: