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

PremiumReviewedSigma · High · v1
Category
process_creation
Author
HuntRule
Published
2026-06-29
Updated
2026-08-28

ATT&CK techniques

Execution → C2
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Persistence

  5. Priv Esc

  6. Defense Evasion

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. Exfiltration

  12. 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.

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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.