Suspicious Plink SSH Tunnel Execution (via process_creation)

ATT&CK techniques

Lateral Movement

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
- T1021.001Remote Desktop Protocol
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the Plink command line SSH client being launched with port forwarding flags, a tunneling technique used by the Agrius group to proxy traffic and reach internal systems. Adversaries abuse Plink to create covert channels through perimeter defenses, which is rarely benign on endpoints.

Reporting behind it

Related detections9 linkedT1021.001 — drag to rearrange

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Suspicious Plink SSH Tunnel Execution (via process_creation)

Pivot detection · T1021.001 · 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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