Malicious Boot Configuration Set to Safe Mode with Networking via bcdedit

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-14
Updated
2026-09-14

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 bcdedit.exe configuring the system to boot into Safe Mode with Networking, an inhibit-recovery step used by Qilin ransomware to run its encryptor while defenses are inactive. Modifying boot configuration to force Safe Mode is a hallmark of ransomware preparing to encrypt with security tooling disabled.

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Malicious Boot Configuration Set to Safe Mode with Networking 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.