Malicious WHQL-Signed WFP Kernel Backdoor Driver Load via wskmon.sys (via driver_load)

ATT&CK techniques

Persistence → Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1547.006Kernel Modules and Extensions
Priv Esc
- T1547.006Kernel Modules and Extensions
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects loading of the wskmon.sys kernel driver, the WHQL-signed Windows Filtering Platform network backdoor analyzed by Nextron that registers a stream callout to intercept traffic and execute operator commands from kernel space. Adversaries leverage a signed driver to persist beneath user-mode defenses, making early detection critical for surfacing kernel-resident implants before command execution.

Reporting behind it

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Malicious WHQL-Signed WFP Kernel Backdoor Driver Load via wskmon.sys (via driver_load)

Pivot detection · T1547.006 · 9 related

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