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   http://buyopsteroids.com:80/%E8%8A%B1%E7%B2%89%E3%81%AE%E9%A3%9B%E6%95%A3%E9%87%8F%E3%81%8C%E6%AF%8E%E5%B9%B4%E7%95%B0%E3%81%AA%E3%82%8B%E7%90%86%E7%94%B1%E3%81%A8%E3%81%AF
Physical Path   C:\Inetpub\vhosts\buyopsteroids.com\httpdocs\%E8%8A%B1%E7%B2%89%E3%81%AE%E9%A3%9B%E6%95%A3%E9%87%8F%E3%81%8C%E6%AF%8E%E5%B9%B4%E7%95%B0%E3%81%AA%E3%82%8B%E7%90%86%E7%94%B1%E3%81%A8%E3%81%AF
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.

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