Knowing if you are trying to recover it , worried it's a virus , or simply curious about its origin will help me provide more specific guidance. WhatsApp media file naming convention - Forensic Focus
: Check the internal storage path: WhatsApp > Media > WhatsApp Video . Download File VID-20210604-WA0019.mp4
: Authentic WhatsApp videos are typically compressed to save data. If the file size is unusually large (e.g., several hundred MBs) and from an unknown source, it may be suspicious. Knowing if you are trying to recover it
: A sequential serial number. This indicates it was the 19th video received or sent through the app on that specific day. worried it's a virus