Use a tool like Any.Run or Hybrid Analysis . These allow you to "run" the file in a controlled virtual environment to see if it tries to contact suspicious servers or encrypt your files.

Where did this file come from? (e.g., an unsolicited email, a suspicious download link, or a forgotten backup?)

Upload the .zip file to VirusTotal . It will scan the file against over 70 different antivirus engines and provide a detailed "Detection" report.

A collection of video loops, stock footage, or high-resolution photos for wallpapers or VFX.