Suspicious WinRM Compatibility HTTPS Listener Enabled via winrm.vbs

ATT&CK techniques

Lateral Movement

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
- T1021.006Windows Remote Management
Collection
C2
Exfiltration
Impact

What it detects

This rule detects use of winrm.vbs to enable the compatibility HTTPS listener, a remote-service configuration change used by Winnti in Operation CuckooBees to establish encrypted WinRM access. Attackers enable this listener to move laterally and control hosts over an encrypted management channel. Enabling the WinRM compatibility HTTPS listener via the script host is an uncommon and suspicious remote-access setup.

Reporting behind it

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Suspicious WinRM Compatibility HTTPS Listener Enabled via winrm.vbs

Pivot detection · T1021.006 · 9 related

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

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