HTTP Error 404.11 - Not Found

The request filtering module is configured to deny a request that contains a double escape sequence.

Most likely causes:

  • The request contained a double escape sequence and request filtering is configured on the Web server to deny double escape sequences.

Things you can try:

  • Verify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting in the applicationhost.config or web.confg file.

Detailed Error Information:

Module   RequestFilteringModule
Notification   BeginRequest
Handler   ExtensionlessUrlHandler-Integrated-4.0
Error Code   0x00000000
Requested URL   https://studownload.ir:443/search/key-%da%af%d8%b2%d8%a7%d8%b1%d8%b4-%da%a9%d8%a7%d8%b1-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4%da%af%d8%a7%d9%87-%d9%85%d9%82%d8%a7%d9%88%d9%85%d8%aa-%d9%85%d8%b5%d8%a7%d9%84%d8%ad
Physical Path   C:\Inetpub\vhosts\studownload.ir\httpdocs\search\key-%da%af%d8%b2%d8%a7%d8%b1%d8%b4-%da%a9%d8%a7%d8%b1-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4%da%af%d8%a7%d9%87-%d9%85%d9%82%d8%a7%d9%88%d9%85%d8%aa-%d9%85%d8%b5%d8%a7%d9%84%d8%ad
Logon Method   Not yet determined
Logon User   Not yet determined

More Information:

This is a security feature. Do not change this feature unless the scope of the change is fully understood. You should take a network trace before changing this value to confirm that the request is not malicious. If double escape sequences are allowed by the server, modify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting. This could be caused by a malformed URL sent to the server by a malicious user.

View more information »