: Use unzip -l or 7z l to view file names without extracting. Look for suspicious names like payload.exe , script.ps1 , or hidden folders. 4. Detailed Investigation Depending on the files found inside:

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: Check image files (.jpg, .png) for hidden data using tools like steghide or stegsolve .

: Use exiftool to check for unusual metadata (e.g., author names, timestamps, or hidden comments). 3. Archive Analysis & Extraction

: Use the file command to confirm it is a valid ZIP archive.

If the ZIP is password-protected, common techniques include: