Files like Su.28.wmv found in unexpected locations or received via email may be "social engineering" traps. Malware sometimes uses video extensions to trick users into opening an executable.
The "Su" prefix is commonly used for aircraft (e.g., Su-28, a variant of the Su-25 Frogfoot trainer). "Su.28.wmv" could be a video file documenting this aircraft's performance or a flight simulation recording. Sukhoi Su-28: A light attack and trainer aircraft. Su.28.wmv
The .wmv extension (Windows Media Video) is a container for video. However, specific file names with non-standard prefixes (like "Su.28") are often associated with automated reports or potentially suspicious files. Safety Considerations Files like Su