Windows Security 4624 Logon for scrcons.exe Indicating Remote WMI ActiveScriptEventConsumers

Flags remote network logons involving scrcons.exe that may indicate WMI ActiveScriptEventConsumers activity.

FreeReviewedSigma · Medium · v5
Product
windows
Service
security
Author
Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research) (SigmaHQ), DRL 1.1
Published
2020-09-02
Updated
2026-07-31

ATT&CK techniques

Persistence → Priv Esc
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Defense Evasion

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule flags successful Windows logons (EventID 4624, LogonType 3) where the process name ends with scrcons.exe, excluding the specified Local System TargetLogonId. Activity involving Remote WMI ActiveScriptEventConsumers can be used by attackers to establish execution paths that support lateral movement and persistence. The detection relies on Windows Security audit telemetry for process-associated logon events and correlates the scrcons.exe logon context for further enrichment.

Related detections9 linkedT1546.003 — drag to rearrange
Malicious WMI Registration - PowerShell (via powershell)
Malicious System Crash Behavior Manipulation - WMImplant - Registry (via registry_event)
Windows WMI Event Consumer with Encoded Payload Containing Suspicious Strings
PowerShell WMI Event Subscription Persistence via New-CimInstance
Windows Process Creation: WMIC.exe ActiveScriptEventConsumer Creation Attempt
WMI scrcons.exe Loading Script and WMI DLLs via Image Load (Windows)
Windows WMI Backdoor in Exchange Transport Agent via WMI Event Filter Execution
Windows WMI Event Subscription Creation (Sysmon Event 19/20/21)
Windows WMI Persistence via wbemcons.dll Loaded by WmiPrvSE.exe
Windows Security 4624 Logon for scrcons.exe Indicating Remote WMI ActiveScriptEventConsumers
Pivot detection · T1546.003 · 9 related

Changelog

v5
  1. v5
    Candidate ingested via manual entry.2026-07-31
  2. v4
    Candidate ingested via manual entry.2026-07-31
  3. v3
    Candidate ingested via manual entry.2026-07-31
  4. v2
    Candidate ingested via manual entry.2026-07-31
  5. v1
    No changelog recorded for this version.2026-07-30

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