Malicious FRP Reverse Proxy Tunnel Identified by Hardcoded Token (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
Exfiltration
Impact

What it detects

This rule detects the hardcoded FRP authentication token frpforzhangwei used by CL-UNK-1068 to establish fast reverse proxy tunnels into victim networks. This unique token constant identifies the actor's tunneling infrastructure, providing persistent encrypted access for command and control and lateral movement.

Reporting behind it

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Malicious FRP Reverse Proxy Tunnel Identified by Hardcoded Token (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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