Server attack IIS/5.0 but why does IIS show 200 return codes for HEAD /c/winnt/system3
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    Server attack IIS/5.0 but why does IIS show 200 return codes for HEAD /c/winnt/system3  
David Martin


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01-24-04 07:02 AM

Last night I experienced a server attack on IIS 5.0 - with all patches in
place (thankfully).
The logs are available on http://www.skill-it.com/Dave/www.asp and are quite
interesting
- as well as showing attempts to infect with the the CODE RED II worm they
show
what I think is a manual attempt to exploit the situation that the worm
would have caused.
(see the entries for IP address 217.40.142.3 commencing 23/01/2004 12:28:39
(CET))

What I don't understand is why dosome of the commands get a 200 response
such as
200  HEAD  /c/winnt/system32/cmd.exe     /c+dir+c:\winnt\system32\cmd2.exe

Can someone also explain what the HEAD command does.

Thanks in advance,
David Marin







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    Re: Server attack IIS/5.0 but why does IIS show 200 return codes for HEAD /c/winnt/sys  
Karl Levinson [x y] mvp


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01-24-04 07:02 AM

Google:

http://www.google.com/search?hl=en&...q=http+head+get
http://www.webmasterworld.com/forum11/2231.htm

I assume you're not using URLScan.  You really should be.  It's free from
www.microsoft.com/technet/security  There are also a number of free
hardening checklists for Windows and IIS there that you should consider
using.


"David Martin" <David.Martin@skill-it.com> wrote in message
news:eO878am4DHA.1504@TK2MSFTNGP12.phx.gbl...
quote:
> Last night I experienced a server attack on IIS 5.0 - with all patches in > place (thankfully). > The logs are available on http://www.skill-it.com/Dave/www.asp and are
quite
quote:
> interesting > - as well as showing attempts to infect with the the CODE RED II worm they > show > what I think is a manual attempt to exploit the situation that the worm > would have caused. > (see the entries for IP address 217.40.142.3 commencing 23/01/2004
12:28:39
quote:
> (CET)) > > What I don't understand is why dosome of the commands get a 200 response > such as > 200 HEAD /c/winnt/system32/cmd.exe /c+dir+c:\winnt\system32\cmd2.exe > > Can someone also explain what the HEAD command does. > > Thanks in advance, > David Marin > >




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    Re: Server attack IIS/5.0 but why does IIS show 200 return codes for HEAD /c/winnt/sys  
David Martin


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01-24-04 07:02 AM

Many thanks - Just installed URLScan.

David Martin.


"Karl Levinson [x y] mvp" <levinson_k@despammed.com> wrote in message
news:uPTdv1n4DHA.2756@TK2MSFTNGP09.phx.gbl...
quote:
> Google: > > http://www.google.com/search?hl=en&...q=http+head+get > http://www.webmasterworld.com/forum11/2231.htm > > I assume you're not using URLScan. You really should be. It's free from > www.microsoft.com/technet/security There are also a number of free > hardening checklists for Windows and IIS there that you should consider > using. > > > "David Martin" <David.Martin@skill-it.com> wrote in message > news:eO878am4DHA.1504@TK2MSFTNGP12.phx.gbl... in[QUOTE] > quite they[QUOTE] > 12:28:39 /c+dir+c:\winnt\system32\cmd2.exe[QUOTE] > >




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    Re: Server attack IIS/5.0 but why does IIS show 200 return codes for HEAD /c/winnt/sys  
Laura A. Robinson [MVP]


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01-25-04 07:35 AM

circa Sat, 24 Jan 2004 11:42:15 +0100, in
microsoft.public.inetserver.iis.security, David Martin
(David.Martin@skill-it.com) said,
quote:
> Last night I experienced a server attack on IIS 5.0 - with all patches in > place (thankfully). > The logs are available on http://www.skill-it.com/Dave/www.asp and are qui te > interesting > - as well as showing attempts to infect with the the CODE RED II worm they > show > what I think is a manual attempt to exploit the situation that the worm > would have caused. > (see the entries for IP address 217.40.142.3 commencing 23/01/2004 12:28:3 9 > (CET)) > > What I don't understand is why dosome of the commands get a 200 response > such as > 200 HEAD /c/winnt/system32/cmd.exe /c+dir+c:\winnt\system32\cmd2.exe > > Can someone also explain what the HEAD command does. >
The HEAD command is like a GET, except that instead of asking for the actual resource, it asks just for the headers associated with the resource. Essentially, it's a check to see if the object exists without downloading it. Laura




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    Re: Server attack IIS/5.0 but why does IIS show 200 return codes for HEAD /c/winnt/sys  
David Martin


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01-25-04 07:35 AM

news:MPG.1a7da76ac75a518b98a9da@msnews.microsoft.com...
quote:
> circa Sat, 24 Jan 2004 11:42:15 +0100, in > microsoft.public.inetserver.iis.security, David Martin > (David.Martin@skill-it.com) said, in[QUOTE] quite[QUOTE] they[QUOTE] 12:28:39[QUOTE] /c+dir+c:\winnt\system32\cmd2.exe[QUOTE] > The HEAD command is like a GET, except that instead of asking for the > actual resource, it asks just for the headers associated with the > resource. Essentially, it's a check to see if the object exists > without downloading it. > > Laura
"Laura A. Robinson [MVP]" <geekwench@snippit.hotmail.com> wrote in message Many thanks Laura, David.




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