Malicious Tunneling Tool Execution on Linux Host (via process_creation)

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1090Proxy
- T1572Protocol Tunneling
Exfiltration
Impact

What it detects

This rule detects execution of known network tunneling and proxy utilities used to pivot and exfiltrate from compromised Linux and container hosts. Observed in the Elastic Security Labs TeamPCP scenario where gost, frps, chisel, and socat establish covert channels for command and control and lateral movement.

Reporting behind it

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Windows Process Creation: cloudflared Tunnel Execution with Config and Credentials Flags

Linux network connections to ngrok tunneling endpoints

Windows Executable Initiating Connections to ngrok Tunnel Domains

Malicious Tunneling Tool Execution on Linux Host (via process_creation)

Pivot detection · T1090 · 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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