T1053.005 Scheduled Task/Job: Scheduled Task
4 threats tracked by Spectrum Delta use this technique.
n0n credential extortion
Locker and audit runs as SYSTEM scheduled tasks
Windows Security task events (4698) and Sysmon process creation for schtasks.exe
Seen in: Windows Security event log, Sysmon
Yoba signed-AI sideload
WMP-masqueraded scheduled-task persistence
Sysmon EID 11 file creation + EID 7 wmpdui.dll image load + Security 4698 task creation with the masqueraded fields
Seen in: Windows file creation, Windows image load, Windows scheduled task
Armorsteal
SEO-poisoned install chain: fake Chocolatey/MAS lure to scheduled-task persistence in a Windows masquerade path
PowerShell script-block logs (download + elevation); Windows Task Scheduler operational log — creation of tasks named SysCheck2/SysCheckX; file-create events under C:\Windows\SystemHealth\Update\ (Update.zip/Updatef.zip, onetime_version.txt, global_version.txt); Zscaler MDR WIN-CONHOST-HEADLESS-CMD and WIN-SCHTASKS-CREATE-SHELL analytics fire on this chain
Seen in: Windows event logs
MythicRatatoskr Yggdrasil C2
Scheduled task pdfopentask executes PowerShell payload
Task Scheduler operational log (task execution; creation events if enabled), Sysmon EID 1 for the PowerShell process and any schtasks.exe use; 4698 in Security log if task-creation auditing is on
Seen in: Windows System/Security event logs, Sysmon / EDR