Liệu có phải là một cuộc tấn công

[hinker]

Dear ace.

Hiện mình đang quản lý 1 website và dạo gần đây xuất hiện những truy vấn lỗi mà không hiểu nguyên nhân.
Mong ace có kinh nghiệm cùng chia sẻ.

Cho phép mình giấu domain nhé.

Event code: 3005

Event message: An unhandled exception has occurred.

Event time: 3/20/2017 2:17:59 PM

Event time (UTC): 3/20/2017 7:17:59 AM

Event ID: 6381909f40c54872be3bbf7f9756503a

Event sequence: 3874

Event occurrence: 25

Event detail code: 0



Application information:

    Application domain: /LM/W3SVC/14/ROOT-30-131344592567303283

    Trust level: Full

    Application Virtual Path: /

    Application Path: D:Webdataabcxyz.com

    Machine name: abcxyz-WEBSRV



Process information:

    Process ID: 13056

    Process name: w3wp.exe

    Account name: abcxyz-WEBSRVabcxyz.com



Exception information:

    Exception type: HttpException

    Exception message: The length of the URL for this request exceeds the configured maxUrlLength value.
   at System.Web.HttpRequest.ValidateInputIfRequiredByConfig()
   at System.Web.HttpApplication.PipelineStepManager.ValidateHelper(HttpContext context)





Request information:

    Request URL: http://www.abcxyz.com/upload/images/HinhKhamPha/toanlaudaiNeuschwanstein.jpg&imgrefurl=http:/www.abcxyz.com/kham-pha/kham-pha-long-lay-toa-lau-dai-neuschwanstein-duc-iz106.html&h=375&w=500&sz=43&tbnid=TuoHv9ZB6BR2AM:&tbnh=95&tbnw=126&zoom=1&usg=__n18m9pQysL-LqII_F3s-s9bGSWo=&docid=pIJXgWeO8YtkBM&hl=vi&sa=X&ei=YDzNULDMLY2SiQeblICYAg&ved=0CDgQ9QEwAw&dur=1808

    Request path: /upload/images/HinhKhamPha/toanlaudaiNeuschwanstein.jpg&imgrefurl=http:/www.abcxyz.com/kham-pha/kham-pha-long-lay-toa-lau-dai-neuschwanstein-duc-iz106.html&h=375&w=500&sz=43&tbnid=TuoHv9ZB6BR2AM:&tbnh=95&tbnw=126&zoom=1&usg=__n18m9pQysL-LqII_F3s-s9bGSWo=&docid=pIJXgWeO8YtkBM&hl=vi&sa=X&ei=YDzNULDMLY2SiQeblICYAg&ved=0CDgQ9QEwAw&dur=1808

    User host address: 66.220.159.113

    User:

    Is authenticated: False

    Authentication Type:

    Thread account name: abcxyz-WEBSRVabcxyz.com



Thread information:

    Thread ID: 64

    Thread account name: abcxyz-WEBSRVabcxyz.com

    Is impersonating: False

    Stack trace:    at System.Web.HttpRequest.ValidateInputIfRequiredByConfig()
   at System.Web.HttpApplication.PipelineStepManager.ValidateHelper(HttpContext context)




Custom event details:

 

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