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Windows: Suspicious Child Process Spawned by scrcons.exe (Script Event Consumer)

Alerts on rare child processes spawned by scrcons.exe, which may indicate abuse of Script Event Consumer for execution.

FreeReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
Sittikorn S (SigmaHQ), DRL 1.1
Published
2021-06-21
Updated
2026-07-30
AnalysisDetection

ATT&CK techniques

Execution

  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. C2

  13. Exfiltration

  14. Impact

What it detects

This rule flags process creation where the parent process is Script Event Consumer (scrcons.exe) and the child executable matches a set of common script execution and living-off-the-land binaries. Attackers may abuse scrcons.exe to launch additional processes for execution, scripting, or indirect payload delivery. Telemetry required is Windows process creation events containing parent and child image paths.

Reporting behind it

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Malicious Shadow Copy Deletion Via WMI
Suspicious Remote Process Creation via WMIC Process Call Create (via process_creation)
Suspicious System Reconnaissance via WMI Command-Line Queries (via process_creation)
Malicious Impacket WMIexec Process Execution (via process_creation)
Suspicious Child Process Spawned by WMI Provider Host (via process_creation)
Windows: Suspicious Child Process Spawned by scrcons.exe (Script Event Consumer)
Pivot detection · T1047 · 9 related

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