1) Trojan horse 
Trojan.Emcodec.E is a trojan horse that is mis-represented as an audio and video codec for Windows-based PCs. It exists in various variants with names such as Media Codec, Ecodec, Imediacodec, IntCodec, Pcodec, SVideocodec, Video iCodec, QualityCodec, Vcodec, Zip Codec, zCodec, ZCODEC and began to be widely used in spring 2005. When visiting certa...