When reviewing the Symantec Protection Engine (SPE) logs, all file names are the same (i.e. resource, index.html, etc.) and do not match the actual names of the files.
All versions of SPE.
This is expected behavior as the SPE utilizes the file name explicitly provided by the client application during the request.
If capturing the original or source file name is required then engage the client application's development or support team to configure the client application to transmit the correct file name during the request.
If the client application is using the SPE SDK then see When using the Protection Engine SDK, file names are logged as index.html for more information.