Suspicious netsh Outbound Network Connection from IDAT Loader Injection

PremiumReviewedSigma · High · v1
Product
windows
Category
network_connection
Author
HuntRule
Published
2026-07-21
Updated
2026-08-28

ATT&CK techniques

Priv Esc → C2
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Defense Evasion

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. Exfiltration

  12. Impact

What it detects

This rule detects the netsh utility initiating outbound internet connections which is abnormal for the tool. A fake IT support site leading to Vidar used the Hijack IDAT Loader to inject shellcode into netsh so C2 traffic runs from a signed process. netsh has no legitimate reason to reach external hosts so this points to process injection.

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Suspicious netsh Outbound Network Connection from IDAT Loader Injection
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.