MicrosoftSystem64 Scheduled Task Persistence
This rule detects the creation of a scheduled task named 'MicrosoftSystem64' using various methods. It looks for command-line execution of 'schtasks.exe /create' with the specific task name, explicit ScheduledTaskCreated events from Microsoft Defender for Endpoint (MDE) containing 'MicrosoftSystem64', and Windows Security Event ID 4698 (Scheduled Task Created) where the TaskName contains 'MicrosoftSystem64'. This specific task name is associated with known threat actor activity, particularly FAMOUS CHOLLIMA / DPRK-linked actors deploying Node.js SEA RAT.
Microsoft Sentinel (KQL)
