Aidan - 

By setting the following in URLScan.INI
-----------------------
RejectResponseUrl=      ; UrlScan will send rejected requests to the URL
specified here. Default is /<Rejected-by-UrlScan>
UseFastPathReject=0     ; If 1, then UrlScan will not use the
RejectResponseUrl or allow IIS to log the request
-----------------------
  
You should end up with logs that look like this:
-----------------------
2002-07-23 07:45:07 12.253.58.101 - W3SVC1 XXXXXXXX 192.168.0.2 80 GET
/<Rejected-By-UrlScan> ~/scripts/root.exe 404 123 552 72 0 HTTP/1.0 www - -
-
2002-07-23 07:45:07 12.253.58.101 - W3SVC1 XXXXXXXX 192.168.0.2 80 GET
/<Rejected-By-UrlScan> ~/MSADC/root.exe 404 123 552 70 0 HTTP/1.0 www - - -
2002-07-23 07:45:07 12.253.58.101 - W3SVC1 XXXXXXXX 192.168.0.2 80 GET
/<Rejected-By-UrlScan> ~/c/winnt/system32/cmd.exe 404 123 552 80 0 HTTP/1.0
www - - -
2002-07-23 07:45:07 12.253.58.101 - W3SVC1 XXXXXXXX 192.168.0.2 80 GET
/<Rejected-By-UrlScan> ~/d/winnt/system32/cmd.exe 404 123 552 80 0 HTTP/1.0
www - - -
2002-07-23 07:45:07 12.253.58.101 - W3SVC1 XXXXXXXX 192.168.0.2 80 GET
/<Rejected-By-UrlScan> ~/scripts/..%255c../winnt/system32/cmd.exe 404 123
552 96 10 HTTP/1.0 www - - -
-----------------------


There's a little script that I use (
http://www.christopherlewis.com/Code/RemoveURLScan.VBS/RemoveURLScan_All.vbs
) to parse the log file and remove any line with /<Rejected-By-UrlScan>
before Analog runs.  

This should remove the 404's from virii, and give you a "more correct"
failure report.

Chris

Christopher G. Lewis
Technical Consultant
HTTP://www.ChristopherLewis.com

> 
> > Here's how I handle the infected IIS server traffic that would
> normally
> > cause a 404 to be logged:
> > [snip]
> 
> Thanks for the reply.
> 
> I installed URLScan on the server and set 
> UseAllowExtensions=1 (which tells URLScan to deny all 
> requests which aren't for a specific file
> extension) and then listed file extensions in use on the site 
> (.cfm, .asp, .css, .jpg, .gif, etc). That prevents the 
> requests from Nimda, Code Red, whatever-it is infected boxes 
> from even reaching IIS (which is great from both a security 
> and "clean-log" point of view).
> 
> Trouble is, there's still these pesky lines in the logs which 
> don't appear to be for *anything*. It's not a huge problem, 
> but I'd like to get analog to help show me where there are 
> problems with the site.
> 
> BTW, do you know if the requests are for the default file in 
> the root folder by any chance?
> 
> 
> > #Software: Microsoft Internet Information Services 5.0
> > #Version: 1.0
> > #Date: 2002-07-29 01:01:03
> > #Fields: date time c-ip cs-username s-sitename s-computername s-ip 
> > s-port cs-method cs-uri-stem cs-uri-query sc-status sc-win32-status 
> > sc-bytes cs-bytes time-taken cs-version cs-host cs(User-Agent)
> > cs(Cookie) cs(Referer)
> > 2002-07-29 01:01:04 217.37.111.57 - W3SVC1 ServerName 
> ServerIP 80 - -
> -
> > 404 2 245 97 0 HTTP/1.0 www - - -
> > 2002-07-29 01:01:04 217.37.111.57 - W3SVC1 ServerName 
> ServerIP 80 - -
> -
> > 404 2 245 97 0 HTTP/1.0 www - - -
> > 2002-07-29 01:01:04 217.37.111.57 - W3SVC1 ServerName 
> ServerIP 80 - -
> -
> > 404 2 245 98 0 HTTP/1.0 www - - -
> 
> 
> Thanks
> 
> -- 
> Aidan Whitehall<[EMAIL PROTECTED]>
> Macromedia ColdFusion Developer
> Fairbanks Environmental +44 (0)1695 51775
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