Malicious NetSupport RAT Client32 Execution

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-10
Updated
2026-09-10

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 execution of client32.exe the NetSupport Manager remote-control client binary from a user-writable directory. Threat actors repackaged NetSupport Manager as a RAT delivered through fake browser update lures in this campaign. NetSupport client32 running from temp or profile paths rather than an installed program directory indicates abuse for unauthorized remote access.

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Malicious NetSupport RAT Client32 Execution
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Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.