How can you find out what is going on in your system when you are not around? One way to find suspicious processes is to look for unexpected CPU usage. Many of you have probably used this method already, using the Windows Task Manager to find out which processes are using the CPU. The Windows Task Manager is rather limited, though. It doesn't give you CPU usage graphs for each process. To make this method really efficient, you also need to save the CPU usage for many hours, so that you can inspect the CPU usage graphs and look for deviations and unexpected CPU loads.
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