Removal Of SD Value to Hide Schedule Task - Registry

Remove SD (Security Descriptor) value in \Schedule\TaskCache\Tree registry hive to hide schedule task. This technique is used by Tarrask malware

Detection logic

Platform: Containers ESXi IaaS Linux macOS Network Devices Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: windows
Log source category: registry_delete

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
www.microsoft.com/security/blog/2022/04/12/tarrask-malware-uses-scheduled-tasks-for-defense-evasion/	Threat report	2from 2 sources