File Write to Windows Startup Folder
This rule detects when a file is written to the Windows startup directory. This activity is a common technique used by adversaries to establish persistence on a system, ensuring that their malicious code executes automatically when a user logs in or the system boots. The rule specifically looks for file creation events where the target filename contains the path to the 'Start Menu\Programs\StartUp' directory. It includes filters to reduce false positives from legitimate system processes like Windows Update and Microsoft OneNote.
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