Suspicious Vulnerable Driver Load for BYOVD Abuse by DragonForce Ransomware (via driver_load)

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1211Exploitation for Stealth
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects loading of the TrueSight.sys or RentDrv.sys vulnerable drivers that DragonForce abuses in a bring-your-own-vulnerable-driver technique to call ZwTerminateProcess and disable endpoint protection. Attackers exploit these signed drivers to kill security agents from kernel space. Flagging their load exposes tampering with defensive tooling.

Reporting behind it

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Malicious Microsoft Defender Service Deactivation Attempt - Command (via process_creation)

Suspicious Vulnerable Driver Load for BYOVD Abuse by DragonForce Ransomware (via driver_load)

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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