Uncommon Lokibot Injected Code Beacon via vbc.exe Network Connection (via network_connection)

ATT&CK techniques

Priv Esc → Defense Evasion

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

What it detects

This rule detects the Visual Basic compiler vbc.exe initiating an outbound network connection, anomalous behavior for a local build tool and indicative of the Lokibot payload the .NET steganography loader injects into a newly spawned vbc.exe process. Adversaries leverage injection into vbc.exe to run malicious code and beacon under a trusted binary, making early detection critical for exposing the infection before credential exfiltration.

Reporting behind it

Related detections9 linkedT1055 — drag to rearrange

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Uncommon Lokibot Injected Code Beacon via vbc.exe Network Connection (via network_connection)

Pivot detection · T1055 · 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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