Malicious Boot Recovery Tampering via Bcdedit

ATT&CK techniques

Impact

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

What it detects

This rule detects bcdedit setting bootstatuspolicy to ignoreallfailures which suppresses Windows recovery prompts after crashes, an inhibit-recovery action used by ransomware to keep encrypted systems booting normally. This was observed during Crux ransomware deployment. The change prevents automatic recovery and helps the encryptor complete uninterrupted.

Reporting behind it

Related detections9 linkedT1490 — drag to rearrange

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Malicious Shadow Copy Deletion and Recovery Inhibition via process_creation

Malicious Boot Recovery Tampering via Bcdedit

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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