Downloading .rar files from unofficial or untrusted sources (e.g., torrents or "cracked" versions) carries significant risks:
: MafiaWare is a known threat that encrypts files and demands a Bitcoin ransom for restoration. download-mafia-rar
: While the .rar file itself isn't harmful until opened, extracting or running an included .exe file can infect your system. How to Open RAR Files on Windows, Mac, and Mobile - Avast Downloading