Malicious BYOVD Driver Signed by Revoked Certificate Load (via image_load)
- Product
- windows
- Category
- image_load
- Author
- HuntRule
- Published
- 2026-05-27
- Updated
- 2026-08-28
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 the loading of a kernel driver signed with the revoked or expired certificates reused by the AVKiller EDR killer shared across multiple ransomware operators. The driver carries a randomized name and fake CrowdStrike version information but is signed by the revoked Changsha Hengxiang or expired Fuzhou Dingxin certificates, a strong indicator of bring your own vulnerable driver abuse.
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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Also included
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