Right-click the file and select "Properties" to see the true file type. If it says "Application (.exe)" instead of "MPEG-4 Video (.mp4)", it is a virus.
The Hidden Risk Behind "Sexy Girl (2761) mp4": A Digital Safety Deep Dive
While the specific filename "Sexy Girl (2761) mp4" does not appear as a widely documented meme or specific viral video in current security databases, it bears all the hallmarks of a used to spread malware.
Some crafted video files exploit vulnerabilities in outdated media players (like older versions of VLC or Windows Media Player). When the player tries to "read" the file, the hidden code "overflows" into the system memory, allowing a virus to take control.
Opening a compromised file can lead to several immediate threats: