Malicious ESXi Virtual Machine Termination and Snapshot Removal

PremiumReviewedSigma · High · v1
Category
process_creation
Author
HuntRule
Published
2026-08-22
Updated
2026-08-28

ATT&CK techniques

Impact
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

What it detects

This rule detects ESXi command-line activity that force-kills running virtual machines or removes all snapshots, the hypervisor sabotage Qilin ransomware performed via esxcli and vim-cmd before encryption. Mass termination of VMs and snapshot deletion inhibits recovery and is characteristic of ransomware targeting virtualized infrastructure.

Related detections9 linkedT1490 — drag to rearrange
Malicious ESXi Virtual Machine Termination and Snapshot Removal via esxcli and vim-cmd (via process_creation)
Malicious Shadow Copy Deletion via WMIC via Process Creation (via process_creation)
Suspicious Anti-Recovery Zeroing via fsutil setZeroData (via process_creation)
Malicious Shadow Copy Removal via WMI PowerShell
Malicious Volume Shadow Copy Deletion via vssadmin
Malicious Inhibit System Recovery via Shadow Copy and Boot Config Tampering (via process_creation)
Malicious Recovery Disablement via Bcdedit RecoveryEnabled No
Suspicious Volume Shadow Copy Deletion via vssadmin or wmic
Malicious System Recovery Inhibition via bcdedit and wbadmin before Ransomware (via process_creation)
Malicious ESXi Virtual Machine Termination and Snapshot Removal
Pivot detection · T1490 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.