Right-click the file and use your security software (Windows Defender, Malwarebytes, etc.) to scan it [Malwarebytes].
Based on the filename provided ("Marfusha.v1.2.0.rar"), this appears to be a compressed archive file for a video game titled (likely the anime-style pixel-art shooter), specifically version 1.2.0 . Marfusha.v1.2.0.rar
Files with .rar or .zip extensions from untrusted sources often contain malware, Trojans, or cryptocurrency miners [Kaspersky]. Right-click the file and use your security software
This can help determine if it is likely to be a legitimate update or a security risk. a specific website
did you download this file from? (e.g., a specific website, a torrent link, or a friend) What is the file size ?