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ESXi Virtual Machine Powered Off

Detects `vim-cmd vmsvc/power.off` on an ESXi host. Powering a virtual machine off releases the lock the hypervisor holds on its virtual disks. With the guest stopped, those disks can be rewritten or encrypted while…

Description

Detects `vim-cmd vmsvc/power.off` on an ESXi host. Powering a virtual machine off releases the lock the hypervisor holds on its virtual disks. With the guest stopped, those disks can be rewritten or encrypted while the machine is down.

Detection logic

Its licence does not clear it for publishing here

Sunturai publishes a detection's own text where the licence it arrived under has been reviewed and permits it, and Elastic License 2.0 has not. The query as its source wrote it, its canonical form and the hash that pins this revision are in the workspace record.

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Detection requirements

Platform
ESXiLinuxmacOSNetwork DevicesWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
event_index

Known benign triggers

  • Administrators power off virtual machines for patching, decommissioning, and hardware maintenance. Review the account and whether the command targeted one VM id or every id returned by `getallvms`.

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