Suspicious HelloNet SSH Reverse Tunnel via frontpage.exe (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
- T1572Protocol Tunneling
Exfiltration
Impact

What it detects

This rule detects execution of frontpage.exe with an SSH reverse port-forwarding argument, a renamed SSH client used by the HelloNet campaign to establish an outbound reverse tunnel on port 8443. Attackers use such tunnels to expose internal services and maintain covert remote access to compromised hosts.

Reporting behind it

Related detections9 linkedT1572 — drag to rearrange

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Suspicious OpenSSH Reverse Tunnel Establishment via process_creation

Suspicious LocalToNet Tunneling Tool Execution

Malicious RDP Tunneling via ngrok (via process_creation)

Suspicious UUID Named Pipe Created Consistent with Mythic SMB Agent

Malicious Chisel Reverse Tunnel Execution for Protocol Tunneling

Suspicious HelloNet SSH Reverse Tunnel via frontpage.exe (via process_creation)

Pivot detection · T1572 · 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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