Suspicious Service DLL Persistence Under Masquerading Service Names

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 a ServiceDll value being set under the COMSysConfig or StorSyncSvc service keys which the ColunmTK APT41 cluster registers to load a malicious DLL through a svchost hosted service. The names impersonate legitimate Windows components to blend in. It is important because ServiceDll hijacking grants stealthy SYSTEM level persistence.

Reporting behind it

Related detections9 linkedT1543.003 — drag to rearrange

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Possible Driver Enumeration via Driverquery for Rootkit Discovery

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Suspicious Service DLL Persistence Under Masquerading Service Names

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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