Possible ReverseSocks5 Tunneling Tool Execution on Linux (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 execution of the ReverseSocks5 tunneling utility staged as R5 under /tmp or /var during PAN-OS Captive Portal zero-day exploitation. Attackers use this SOCKS5 tunnel to proxy traffic and maintain covert access into the internal network.

Reporting behind it

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Possible ReverseSocks5 Tunneling Tool Execution on Linux (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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