Re: Compromised Windows Server

After cleaning it you should be sure that it will not happen again, and
the better way is to know how it happened this time.
So you need to do a little forensic analysis to avoid have the same
problem in the future or in other servers now.
After cleaning you can monitor the system with sniffers, explore the
system to search things that shouldn't be there, monitor the filesystem,
etc... to be shure is really clean.
If you have other systems to compare, will be great, or if you know what
is exactly what must be in the server.
The list of things you should do in this case, in my opinion, is too
large to be explained in an email.
This book will be very helpful:
http://www.amazon.com/gp/product/0321200985/sr=8-2/qid=1149607087/ref=sr_1_2/104-4503193-3407931?%5Fencoding=UTF8





El lun, 05-06-2006 a las 14:27 -0500, Patrick Beam escribió:
Came in this morning to find a windows 2003 server I manage scanning the
Internet for machines listening on tcp 139 and 445. While looking at the
machine I noticed the following processes running.




Mwvsta.exe found in c:\windows\system32

rundll16.exe c:\windows\system23

Ponoas.exe c:\windows\system32



I believe that the ponoas.exe is some sort of rootkit although searching on
google for this file name returns nothing. Also searching
mwvsta.exereturns nothing. At this point I have removed these files
from the system
and registry but am weary that the server will get hit again. Has anyone
had an experience with the following file or have any idea what rookkit of
virus they are associated with?



Thanks,



Patrick

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