These files are official. They are reverse-engineered or illegally generated using old license keygens. Worse, many are simply renamed .txt files containing malware.
Please note that you should only obtain the Avast Premium Security license file 2038 from authorized sources or purchase it directly from Avast to ensure authenticity and validity.
Avast Premium Security | Online Security — Up to 10 Devices
Premium security relies on real-time cloud updates. Pirated versions often get blocked from receiving the latest virus definitions, leaving your "Premium" software no better than a decorative icon on your desktop. Is There a Better Way?
I can make the tone for a developer audience or more cautionary if you’re targeting general home users.