High count of failed logons by a user

'Identifies when 100 or more failed attempts by a given user in 10 minutes occur on the IIS Server. This could be indicative of attempted brute force based on known account information. This could also simply indicate a misconfigured service or device. References: IIS status code mapping - https://support.microsoft.com/help/943891/the-http-status-code-in-iis-7-0-iis-7-5-and-iis-8-0 Win32 Status code mapping - https://msdn.microsoft.com/library/cc231199.aspx'