Malicious Vulnerable Driver Load for EDR Evasion (via image_load)

ATT&CK techniques

Persistence → Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1543.003Windows Service
Priv Esc
- T1543.003Windows Service
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects loading of the wnbios.sys or WN_64.sys vulnerable drivers, the bring-your-own-vulnerable-driver components an extortion actor paired with the EDRSandBlast disabler.exe tool to blind endpoint security. Loading a known-abusable signed driver grants kernel access used to unhook or terminate EDR agents.

Reporting behind it

Related detections9 linkedT1543.003 — drag to rearrange

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Suspicious Service Masquerading as Thumbcache Loader via registry_set

Malicious Vulnerable Driver Load for EDR Evasion (via image_load)

Pivot detection · T1543.003 · 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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