Invalid script resource

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12/16/2009 4:09:56 PM
Total Posts 64
Gerry Roston gerry (at) pairofdocs (dot) net

Invalid script resource

I have been getting a fairly large number of errors of the type 'invalid script resource'. Here is an example:

2009-12-16 16:57:20,163 ERROR mojoPortal.Web.Global - - /ScriptResource.axd

System.Web.HttpException: This is an invalid script resource request.

at System.Web.Handlers.ScriptResourceHandler.Throw404()

at System.Web.Handlers.ScriptResourceHandler.DecryptParameter(NameValueCollection queryString)

at System.Web.Handlers.ScriptResourceHandler.ProcessRequestInternal(HttpResponse response, NameValueCollection queryString, VirtualFileReader fileReader)

at System.Web.Handlers.ScriptResourceHandler.ProcessRequest(HttpContext context)

at System.Web.Handlers.ScriptResourceHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context)

at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

It is possible that this particular IP address is from a botnet (as suggested by some google searching). However, there are a few other IP addresses which cause the same problem. Is this a possible bug in my site or is someone trying to break in? I am not aware of any pages which are not behaving properly.


12/17/2009 1:32:23 PM
Total Posts 18439

Re: Invalid script resource

Hi Gerry,

One day about a week or so ago I started seeing these in my logs over and over every few minutes from a range of ip addresses, it is a bad request, I mean if you enter the url in the browser http://yoursiteroot/ScriptResource.axd it will create and log an error.

What I did was open a text file and make a sequential list of all the ip addresses I saw causing this error, I kept my eye on the log off and on through the day and whenever I saw a new ip with that error I added it to the list, they were all in a specific range, after I was pretty sure I had them all listed I went through and banned them 1 by 1 because this is not normal traffic and it is coming from China. It is not doing any harm other than being a nuisance but I figure its better to ban them than to let them keep going logging these errors like clockwork. I figure if they get an access denied response for long enough they will eventually give up and leave me alone.



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