Malicious DLL Execution With Non Standard Extension via rundll32

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1036Masquerading
- T1218.011Rundll32
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects rundll32.exe loading a library renamed with a .db extension which the DPRK aligned Stressed Pungsan npm campaign uses to masquerade its downloaded payload package.db and execute an exported function while evading extension based detection.

Reporting behind it

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Malicious DLL Execution With Non Standard Extension via rundll32

Pivot detection · T1036 · 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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