Malicious Remote Payload Piped to Shell via wget on PAN-OS

ATT&CK techniques

Execution → C2

Recon
Resource Dev
Initial Access
Execution
- T1059.004Unix Shell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1105Ingress Tool Transfer
Exfiltration
Impact

What it detects

This rule detects a remote payload being downloaded with wget and piped directly into a shell interpreter, a technique used in Operation MidnightEclipse to fetch second-stage tooling after exploiting CVE-2024-3400. Piping downloaded content straight to bash leaves no file on disk and is a common in-memory execution pattern. Detecting this reveals remote code retrieval and execution on the appliance.

Reporting behind it

Related detections9 linkedT1059.004 — drag to rearrange

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Suspicious Downloaded Shell Stager Made Executable Via Chmod 777

Malicious Remote Script Piped Directly to a Shell (via process_creation)

HamsaUpdate Linux Payload Download via Wget Piped to Bash (via process_creation)

Malicious Remote Payload Piped to Shell via wget on PAN-OS

Pivot detection · T1059.004 · 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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