B_045.mp4

Frequently uses alphanumeric strings for cached videos.

If it came via a suspicious link, it could be a masked script (e.g., b_045.mp4.exe ). Ensure the extension is strictly .mp4 . b_045.mp4

When a hard drive is wiped and files are recovered, the software cannot always find the original name. Frequently uses alphanumeric strings for cached videos

Run the file through VirusTotal before opening to ensure it isn't carrying malware. b_045.mp4