splApache-2.0from splunk/security_content

Remote Process Instantiation via WMI and PowerShell

The following analytic detects the execution of `powershell.exe` using the `Invoke-WmiMethod` cmdlet to start a process on a remote endpoint via WMI. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on command-line executions and process telemetry. This activity is significant as it indicates potential lateral movement or remote code execution attempts by adversaries. If confirmed malicious, this could allow attackers to execute arbitrary code on remote systems, leading to further compromise and persistence within the network.

Quality

FP risk

—

Forks

Views

Rule sourcedetections/endpoint/remote_process_instantiation_via_wmi_and_powershell.yml

| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime FROM datamodel=Endpoint.Processes
  WHERE `process_powershell` (Processes.process="*Invoke-WmiMethod*"
    AND
    Processes.process="*-CN*"
    AND
    Processes.process="*-Class Win32_Process*"
    AND
    Processes.process="*-Name create*")
  BY Processes.action Processes.dest Processes.original_file_name
     Processes.parent_process Processes.parent_process_exec Processes.parent_process_guid
     Processes.parent_process_id Processes.parent_process_name Processes.parent_process_path
     Processes.process Processes.process_exec Processes.process_guid
     Processes.process_hash Processes.process_id Processes.process_integrity_level
     Processes.process_name Processes.process_path Processes.user
     Processes.user_id Processes.vendor_product
| `drop_dm_object_name(Processes)`
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `remote_process_instantiation_via_wmi_and_powershell_filter`