Suspicious Microsoft.NodejsTools.PressAnyKey LOLBAS Proxy Execution

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-21
Updated
2026-09-21

ATT&CK techniques

Defense Evasion
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects execution of Microsoft.NodejsTools.PressAnyKey.exe, a living-off-the-land binary abused by WorkersDevBackdoor to proxy execute an arbitrary command passed as its argument. This signed helper is rarely present outside Visual Studio Node.js debugging, so its use to spawn other processes indicates malicious proxy execution.

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Suspicious Microsoft.NodejsTools.PressAnyKey LOLBAS Proxy 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.