Malicious Local Account Creation of Support or Whiteninja via net.exe

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-11
Updated
2026-09-11

ATT&CK techniques

Persistence
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Priv Esc

  6. Defense Evasion

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects creation of the local accounts support or whiteninja using net user add, the backdoor accounts provisioned by the ToyMaker access broker after gaining a foothold. Attacker-created local accounts give the operator a persistent, credentialed re-entry path that survives reboots and is later reused by the double extortion crews ToyMaker sells access to.

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Suspicious Local Account Creation via Net Command
Malicious Local Account Creation of Support or Whiteninja via net.exe
Pivot detection · T1136.001 · 9 related

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