Created File Event Monitor (markdown)

File-Event-Monitor.md

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+## File Event Monitor
+
+From WelsonJS version 0.2.7.36, complete support for handling system events (mainly events related to file activities) is provided. This is implemented using [Sysinternals Sysmon (microsoft.com)](https://learn.microsoft.com/ko-kr/sysinternals/downloads/sysmon).
+
+The events that can be handled are as follows:
+
+* File creation
+* Network connection (TCP, UDP)
+* Registry changes
+
+### Implement an event listener
+
+The methods `onFileCreated`, `onNetworkConnected`, and `onRegistryModified` are available to implement an event listener. You can find examples in `defaultService.js`.
+
+```js
+function onFileCreated(args) {
+    return "onFileCreated recevied. " + args.join(', ');
+}
+
+function onNetworkConnected(args) {
+    return "onNetworkConnected recevied. " + args.join(', ');
+}
+
+function onRegistryModified(args) {
+    return "onRegistryModified recevied. " + args.join(', ');
+}
+```
+
+### For System Administrators or Security Analysts
+
+#### MITRE ATT&CK (MITRE attack)
+