Often very small (under 1MB) or artificially "padded" to appear larger.
While it uses the .mp4 extension, it is frequently an executable (.exe) disguised as a video file to trick users into running it. Sexy Girl (2701) mp4
May use a video player icon (like VLC or Windows Media Player) despite being an application. Often very small (under 1MB) or artificially "padded"
If you did run it, disconnect your device from Wi-Fi or Ethernet to stop the malware from sending your data to the attacker. Sexy Girl (2701) mp4