The only way that I have been able to get logs via CIFS is to use the Windows Agent. I loaded a Server 2012 instance and installed the agent on that. I have that grab all my logs via CIFS and feed it to the Receiver.
If you want to collect logs via CIFS, you can configure data source, as it was shown in the thread: https://community.mcafee.com/thread/52745?tstart=30. There you can find an example regarding integration with Exchange's Message Tracking logs, which are typically stored in the flat files. Of course you should to choose proper vendor and system for parsing purposes.
If your event data source is not supported, you will have to prepare own ASP rules.