Measuring the bit-level randomness of the .rar payload to determine if the internal data is encrypted (AES-256) or merely compressed.
Content is frequently obfuscated using random alphanumeric strings to avoid automated "Notice and Takedown" procedures, with external .nzb files providing the translation layer. 385H85R8P58PDR85FL8DS4.part1.rar
Scanning the first 256 bytes for hexadecimal signatures (e.g., 52 61 72 21 1A 07 for RAR5) to verify file integrity. Measuring the bit-level randomness of the