Windows Server 2003 Hacked – Files Being Uploaded

hackingwindows-server-2003

Blank directories are being created on my Windows Server 2003 virtual server with sub directories that are weird (for example: "88ÿ ÿ ÿÿþþ þþ13þ"). It looks like they are uploading bootlegged DVDs and pirated software. All of my bandwidth and file space is being eaten up.

Could this be a shared permissions issue? Where should I look to further investigate this?

My security permissions for the directory that is being hit are as followed:
Administrators – ALL GRANTED
IIS_WPG – Read & Execute, List Folder Contents, Read
Internet Guest – DENY
SYSTEM – ALL GRANTED
Users – Read & Execute, List Folder Contents, Read

My Event Viewer is showing many Logon/Logoff with NO IP?

Best Answer

Sounds bad, and unfortunately the only safe course of action is pretty drastic:

  • take the server off the network, wipe it, and rebuild it.

Hopefully you have sufficient backups... If you don't have everything you need backed up, you could add another step in there where you cautiously copy data files off - I wouldn't really trust anything except text files.

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