Junk folders showing up on Server 2000 i.e. "scan by jackoZ"

I've got a web server running win 2000 server sp4.  There are strange folders showing up with names such as ";con0;;;", "Scan by jackoZ", "---===tagg and up by Slonik" and many more.  I've ran antivirus and spyware tools and nothing shows up.  Has anyone seen a virus or spyware that does this or are there any suggestions for a fix?
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JoeWeb Application DeveloperCommented:
You have your FTP server open for people to place Illegal stuff on there.
JoeWeb Application DeveloperCommented:
What some people do is scan IP ranges for any server with vulnerable security holes and when they find one they have a warez fiesca on it, placing illegal applications,movies,games,and music on your server to share with the rest of the world. This will also lead to tons of space being taken up on your server.

JoeWeb Application DeveloperCommented:
Also, here is a link that shows you how to secure a ftp server



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Erik BjersPrincipal Systems AdministratorCommented:
GET A FIREWALL between your server and the internet then only allow the ports you want to pass.
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