With Endpoint Protection in Microsoft System Center Configuration Manager, there are several available methods to deploy and update antimalware definitions as well as engine updates to the clients in your hierarchy.
Microsoft has its own antimalware signatures just like other competitive products on the market. Keeping the engine and client up-to-date is also very important as this is constantly improved with new features and more advanced detection methods. An example of this is the KB update: https://support.microsoft.com/en-gb/kb/2998627.
This will upgrade the Endpoint Protection client with an improved scanning ability and different optimizations regarding finding viruses better, rootkits, as well as malware.
We will show you how to keep both definitions and the client up-to-date.