The message "Unable to process file type" from VirusTotal means that their service could not analyze the .swf file because it is not a supported or properly formatted file type for their processing capabilities. This does not automatically mean the file is a virus, it simply means that VirusTotal cannot provide a result for it. On the other hand, if another website like Alibaba shows the file as "clean," it could be that their scanning tools were able to analyze the file correctly and did not find any malicious content. It is always good practice to be cautious with .swf files, as they can contain executable code, and to ensure downloads are from a trusted source. If you are unsure, you can try using multiple antivirus tools for a second opinion or avoid the file if it seems suspicious.
