Suspicious WMI Event Consumer Creation for MbRemoval Persistence via ps_script

ATT&CK techniques

Persistence → Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1546.003Windows Management Instrumentation Event Subscription
Priv Esc
- T1546.003Windows Management Instrumentation Event Subscription
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects PowerShell content that registers a WMI event subscription tied to Win32_ProcessStartTrace with a consumer named MbRemoval. The Dragon Boss PUP used permanent WMI event consumers to react to process starts and remove security tooling, so creation of this MbRemoval consumer indicates stealthy WMI-based persistence and defense evasion.

Reporting behind it

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Suspicious WMI Event Consumer Creation for MbRemoval Persistence via ps_script

Pivot detection · T1685 · 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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