Malicious HelloNet AppMgmt ServiceDll Persistence via Registry (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 modification of the AppMgmt service Parameters ServiceDll or ServiceMain registry values, a persistence mechanism used by the HelloNet campaign to load a malicious service DLL into svchost netsvcs. Hijacking a legitimate service DLL grants the attacker persistent SYSTEM-level execution while blending into normal service host activity.

Reporting behind it

Related detections9 linkedT1543.003 — drag to rearrange

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Malicious HelloNet AppMgmt ServiceDll Persistence via Registry (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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