It can log keystrokes (keylogging) to steal passwords, banking information, and private messages.
In many cases, these files are actually named something like Cute_Indian_Girl_Update_()mp4.exe . If your computer is set to "Hide extensions for known file types," you will only see the .mp4 part, leading you to believe it is a harmless video. Technical Risks Cute_Indian_Girl_Update_()mp4
If a user attempts to "play" this file, they are usually executing a script or binary that performs the following actions: It can log keystrokes (keylogging) to steal passwords,
The malware modifies system registry keys to ensure it starts every time the computer boots up, often remaining invisible to basic antivirus software. How to Stay Safe Technical Risks If a user attempts to "play"
If you must investigate a suspicious file for educational purposes, only do so in a virtual machine or a tool like Any.Run or VirusTotal .
The use of underscores and empty parentheses _()mp4 often indicates a script-generated file or an attempt to bypass automated security filters that look for specific naming patterns.