Suspicious osascript Spawning curl to High Port C2 via process_creation

PremiumReviewedSigma · High · v1
Product
macos
Category
process_creation
Author
HuntRule
Published
2026-09-30
Updated
2026-09-30

ATT&CK techniques

C2
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. Exfiltration

  13. Impact

What it detects

This rule detects the macOS osascript interpreter spawning curl to reach an external host on port 8000. The axios supply chain payload used AppleScript to invoke curl against attacker infrastructure on this non-standard port, so this parent-child pattern indicates macOS command and control retrieval by the malicious package.

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Suspicious osascript Spawning curl to High Port C2 via process_creation
Pivot detection · T1071.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.