Plink/SSH reverse tunnel

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Plink/SSH reverse tunnel

PuTTY link (Plink) / SSH can be used to create encrypted tunnels to communicate back to an attacker's C2 server.

Module:: Platform Analytics
Agent event type:: Process execution
Category:: Exfiltration
Status:: Enabled

ATT&CK tactics: Command and Control (TA0011)

ATT&CK techniques: Protocol Tunneling (T1572)

Indicator:

Process action type = execution AND target process cmd =~ \s+-R\s+((\d{1,3}\.){3}\d{1,3}:)?(\d+:)?(localhost|127\.0\.0\.1):(3389|445|135|139|389|636)

Preventable: yes