.UPX 파일 확장자

Ultimate Packer for eXecutables automatically unpacks UPX files when they are executed. On some operating systems, it stores the unpacked file in memory using the in-place technique. On other operating systems, it creates a temporary file using the extraction technique.

참고: UPX files rarely use a ".upx" file extension. Rather, they most often use their original file extension after being compressed.