Malicious Enabling of Test Signing Mode via bcdedit
- Product
- windows
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-09-22
- Updated
- 2026-09-22
ATT&CK techniques
Defense EvasionRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects bcdedit enabling testsigning mode on the system, a step in the SyncFuture espionage chain to load unsigned or improperly signed drivers. The actors turned on test signing so their transplanted-signature driver components would load despite failing normal signature checks. Enabling testsigning is a rare, high-impact defense-evasion action with almost no legitimate production use.
Reporting behind it
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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