Malicious Akira Shadow Copy Deletion via PowerShell WMI (via process_creation)

ATT&CK techniques

Execution → Impact

Recon
Resource Dev
Initial Access
Execution
- T1047Windows Management Instrumentation
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
- T1490Inhibit System Recovery

What it detects

This rule detects PowerShell enumerating and deleting Volume Shadow Copies through WMI. Akira ransomware runs a PowerShell one-liner that queries Win32_Shadowcopy and calls Delete to remove backups before encryption, so this command indicates inhibition of system recovery during a ransomware attack.

Reporting behind it

Related detections9 linkedT1490 — drag to rearrange

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Suspicious Sysinternals EULA Acceptance Registry Write Linked to INC Ransomware

Malicious Shadow Copy Deletion via WMI PowerShell (via ps_script)

Malicious Volume Shadow Copy Deletion via Vssadmin

Malicious Boot Configuration Tampering via bcdedit [Intel471] #2

Malicious Akira Shadow Copy Deletion via PowerShell WMI (via process_creation)

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.

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