Welcome to the Virus Encyclopedia of Panda Security.
Spy.YK is a Trojan, which although seemingly inoffensive, can actually carry out attacks and intrusions.
Spy.YK does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.