Suspicious RuntimeBroker Network Connection via Loki Mythic Agent

ATT&CK techniques

Priv Esc → C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
- T1055Process Injection
Defense Evasion
- T1055Process Injection
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1071.001Web Protocols
Exfiltration
Impact

What it detects

This rule detects RuntimeBroker.exe initiating outbound network connections to non-local addresses, an anomaly produced when the Loki Mythic agent injects its gTunnel or ngrok tunneling code into runtimebroker and svchost host processes. RuntimeBroker is a local COM broker that should not talk to remote hosts, so external traffic from it points to injected C2 tunneling.

Reporting behind it

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Suspicious RuntimeBroker Network Connection via Loki Mythic Agent

Pivot detection · T1071.001 · 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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