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root_drv.sys rootkit

Subject: root_drv.sys rootkit
Date: Mon, 8 Nov 2004 20:02:49 +0100
Hello all,

I have a Windows 2003 Web Edition Server that has been compromised due
to some big mistakes of us.
The question is that now this server have a rootkit installed. It
contains some complex configuration and i would like sooo much to be
able to keep the server without reinstall !!

The rootkit is loaded from C:\winnt\system32\root_drv.sys (i can see
it running with TaskInfo2003).
File is hidden and can't be seen within windows at user level, but i'm
able to see and remove file from a linux box with samba.
So i remove the file, i remove whole dllcache and i reboot system. But
root_drv is back there again and running !!
Any clue where is that rootkit backed up and/or how can i remove it !!
Any idea which rootkit is that and where can i find some info about?

Help me please!!
Thany you all!

BR,
Xavi.

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