Re: 100% CPU usage with Windows Sebek 3.0.4/2.1.5 inside a virtual machine?

[Jon Andersen <janderse () umich edu>]

I've now tried Sebek 3.0.4 under VMware GSX server 3.2.1 as well.  
Curiously, in this version I do not get 100% CPU usage.  Instead, Sebek 
doesn't send out any network packets.  I used Ethereal to capture all 
traffic from the host OS, as well as at the Sebek server, and there 
wasn't any traffic.  Running the Sebek configuration again showed that 
Sebek was installed, at least the configured values showed up when the 
configuration program was run after rebooting the virtual machine.

Is there a debug flag or build for Sebek that might help me figure out 
what is going wrong?

-Jon Andersen
Graduate Student
734-763-4521 (work)
734-763-8428 (home)
Computer Science & Engineering - Rm 4917
University of Michigan

On Jun 1, 2006, at 12:01 AM, Michael A. Davis wrote:

> You are the second person to mention this and I think it might be a 
> VMWare
> 5.5 thing. I don't have access to 5.x of Vmware so I cannot test. In 
> 4.x it
> works without causing 100% CPU.
>
> Thanks,
> Michael A. Davis
> Chief Executive Officer
> Savid Technologies, Inc.
> Main: 708.243.2850
> http://www.savidtech.com
>
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> > -----Original Message-----
> > From: Jon Andersen [mailto:janderse () umich edu]
> > Sent: Wednesday, May 31, 2006 9:03 PM
> > To: honeypots () securityfocus com
> > Subject: 100% CPU usage with Windows Sebek 3.0.4/2.1.5 inside
> > a virtual machine?
> >
> > Hi,
> >
> > I have been experimenting with Sebek for the eventual purpose
> > of research on current Internet worm threats.  There is a
> > technical problem that I haven't figured out yet.  I have
> > tried Sebek 3.0.4 and
> > 2.1.5 under VMware Workstation 5.5.1 (guest OS Windows XP
> > SP2, host OS Fedora Core 4),
> >
> > Both Sebek 3.0.4 and 2.1.5, after installation,
> > configuration, and first reboot, are causing 100% CPU
> > utilization in both the guest and host OS.  Sebek is
> > functioning enough that event packets do eventually show up
> > on the Sebek server; however, the guest and host run so
> > slowly that its not useful.  Has anyone seen this pegged-CPU
> > bug before?  Any workarounds?  If not, any recommendations of
> > other Sebek-like tools that can be installed inside a virtual machine?
> >
> > Thanks,
> >
> > -Jon Andersen
> > Graduate Student
> > 734-763-4521 (work)
> > 734-763-8428 (home)
> > Computer Science & Engineering - Rm 4917 University of Michigan