Malicious TinyTurla ServiceDll Registration via svchost Group (via registry_set)

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 the sdm service ServiceDll parameter being pointed at dcmd.dll, the loader DLL for the TinyTurla backdoor executed through a custom svchost group. Setting ServiceDll to the malicious module completes the service-based persistence used in the full kill chain.

Reporting behind it

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Malicious TinyTurla ServiceDll Registration via svchost Group (via registry_set)

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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