Microsoft Sysinternals Tools
The Sysinternals toolset can help you investigate various anomalous behaviors and connections taking place on an endpoint. Below are a few of the tools you may be asked to run, each are linked to their respective Microsoft download page and usage guide.
TCPView: This tool can help you identify the process that is opening a port or communicating across it.
Process Explorer: This tool can help you identify handles and DLLs that are attached to processes and their location.
Process Monitor: For processes or problems that appear to be intermittent or hard to catch, process monitor can capture all processes over time so that you can identify potential periodic issues.
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