Malicious Invoke-WMIExec Lateral Movement Download and Execute (via ps_script)

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 a PowerShell one liner that downloads Invoke-WMIExec via a web client and executes it against a remote target using a pass the hash argument as observed in the MeshAgent and SuperShell intrusion. This chains in memory script download with WMI based lateral movement.

Reporting behind it

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Windows remote PowerShell session activity via wsmprovhost.exe process relationships

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Windows Remote PowerShell Session via PS Module ContextInfo and wsmprovhost.exe

Malicious Invoke-WMIExec Lateral Movement Download and Execute (via ps_script)

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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