: Receiving errors for a domain I don't control I have my site set up to email me whenever an error happens, and recently I've been getting an occasional notification (a few per day) about a

I have my site set up to email me whenever an error happens, and recently I've been getting an occasional notification (a few per day) about a page not found error, but the weird thing is that the error is for a domain other than my own. Here's an example of the error (my domain isn't ncbels.org). Any idea what could be causing this?

I suspect my site is being used to probe/attack other domains somehow (do you agree?). I'm not sure how to track it down without more information. I searched all my site files for references to that domain, as well as any free text fields in my database, and didn't find anything. My hosting provider ran a scan on my site and said it came up clean.

Error in page mail.ncbels.org/owa/auth/logon.aspx?url=https://mail.ncbels.org/owa/&reason=0

Message The file '/owa/auth/logon.aspx' does not exist.

Trace CheckVirtualFileExists at offset 9984736 in file:line:column
:0:0 GetVPathBuildResultInternal at offset 475 in
file:line:column :0:0
GetVPathBuildResultWithNoAssert at offset 103 in file:line:column
:0:0 GetVirtualPathObjectFactory at offset 165 in
file:line:column :0:0
CreateInstanceFromVirtualPath at offset 43 in file:line:column
:0:0 GetHandlerHelper at offset 31 in
file:line:column :0:0 GetHandler at offset 37 in
file:line:column :0:0
System.Web.HttpApplication.IExecutionStep.Execute at offset 346 in
file:line:column :0:0 ExecuteStep at offset 155
in file:line:column :0:0

StackTrace at System.Web.UI.Util.CheckVirtualFileExists(VirtualPath
virtualPath) at
System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath
virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean
allowBuildInPrecompile, Boolean throwIfNotFound, Boolean
ensureIsUpToDate) at
System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext
context, VirtualPath virtualPath, Boolean noBuild, Boolean
allowCrossApp, Boolean allowBuildInPrecompile, Boolean
throwIfNotFound, Boolean ensureIsUpToDate) at
System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath
virtualPath, HttpContext context, Boolean allowCrossApp, Boolean
throwIfNotFound) at
System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath
virtualPath, Type requiredBaseType, HttpContext context, Boolean
allowCrossApp) at
System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context,
String requestType, VirtualPath virtualPath, String physicalPath) at
System.Web.UI.PageHandlerFactory.GetHandler(HttpContext context,
String requestType, String virtualPath, String path) at
System.Web.HttpApplication.MaterializeHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step,
Boolean& completedSynchronously)

Query String url=https%3a%2f%2fmail.ncbels.org%2fowa%2f&reason=0

User Name

Source System.Web

Help

Error Code
-2147467259

Form Data