Symantec Protection for SharePoint Server - AV definitions are not shown correctly in Central Admin

Few days ago I faced the following issue with Symantec Protection for SharePoint Server and AV definitions displayed in Central Admin. I have SharePoint 2013, Symantec Protection Engine version 7.0.1.1 and Symantec Protection 6.0 for SharePoint Server version 6.0.4.7.

When I went to Central Admin -> Symantec Protection for SharePoint Server -> List and edit all registered Symantec Protection Engines I saw the following scared screen:

Fortunately I knew that AV definitions are up to date, inside the Symantec Protection Engine interface I saw "Up To Date":

Inside the log files of Symantec Protection for SharePoint shows that AV definitions are up to date:

So far so good, I'm happy my AV definitions are up to date, but why in Central Admin I have the wrong definitions?

Even if I tried to remove the registered Symantec Protection Engine I got an error. So I could neither delete nor edit the registered Symantec Protection Engines.

Inside the log files "C:\Program Files\Symantec\SharePoint\Logfiles\System" I saw the following error message:

"2014-10-30 10:01:04","(null)","-1","Error","Access to the path 'C:\Program Files\Common Files\Symantec Shared\SharePointEngine\AVESettings_10_1_32_6.dat' is denied."," Server stack trace:     at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)    at System.IO.File.InternalDelete(String path, Boolean checkHost)    at Symantec.Sharepoint.Service.RTCommand.Service.DeleteSettingsScanEngine(ScanEngine scanEngine)    at Symantec.Sharepoint.Service.RTCommand.Service.RemoveScanEngine(ScanEngine scanEngine)    at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)    at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)  Exception rethrown at [0]:     at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)    at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)    at Symantec.Sharepoint.Shared.InterfaceLibrary.IRTCommandService.RemoveScanEngine(ScanEngine scanEngine)    at Symantec.Sharepoint.RTCommandClient.RTCommand.RemoveScanEngine(ScanEngine scanEngine, String spssMachine)","mscorlib","RTCommandClient"
 
This actually show me the solution.

Solution
I checked the SPSSService account and the permissions over C:\Program Files\Common Files\Symantec Shared\SharePointEngine\ folder and surprise the account has ONLY write permissions. Adding Full control to the account fixed this issue.  

Hope you will find this article helpful.
Enjoy.