If a user clicks it, instead of a media player opening, a script runs in the background. This could install a keylogger to steal passwords, turn the computer into a "bot" for DDoS attacks, or deploy ransomware. 3. A Relic of Internet History

Always enable "Show file extensions" in your operating system settings to see if there is a hidden .exe or .scr at the end.

On some systems, the full name might actually be Sexy Girl (286).mp4.exe .