--- title: "GetWmiObject Ds Computer with PowerShell" excerpt: "Remote System Discovery" categories: - Endpoint last_modified_at: 2021-09-07 toc: true toc_label: "" tags: - Remote System Discovery - Discovery - Splunk Enterprise - Splunk Enterprise Security - Splunk Cloud - Endpoint --- [Try in Splunk Security Cloud](https://www.splunk.com/en_us/cyber-security.html){: .btn .btn--success} #### Description This analytic looks for the execution of `powershell.exe` with command-line arguments utilized to discover remote systems. The `Get-WmiObject` commandlet combined with the `DS_Computer` parameter can be used to return a list of all domain computers. Red Teams and adversaries alike may leverage WMI in this case, using PowerShell, to enumerate domain groups for situational awareness and Active Directory Discovery. - **Type**: TTP - **Product**: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud - **Datamodel**: [Endpoint](https://docs.splunk.com/Documentation/CIM/latest/User/Endpoint) - **Last Updated**: 2021-09-07 - **Author**: Mauricio Velazco, Splunk - **ID**: 7141122c-3bc2-4aaa-ab3b-7a85a0bbefc3 #### [ATT&CK](https://attack.mitre.org/) | ID | Technique | Tactic | | ----------- | ----------- |--------------- | | [T1018](https://attack.mitre.org/techniques/T1018/) | Remote System Discovery | Discovery | #### Search ``` | tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes where (Processes.process_name="powershell.exe") (Processes.process=*Get-WmiObject* AND Processes.process="*namespace root\\directory\\ldap*" AND Processes.process="*class ds_computer*") by Processes.dest Processes.user Processes.parent_process Processes.process_name Processes.process Processes.process_id Processes.parent_process_id | `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `getwmiobject_ds_computer_with_powershell_filter` ``` #### Associated Analytic Story * [Active Directory Discovery](/stories/active_directory_discovery) #### How To Implement To successfully implement this search you need to be ingesting information on process that include the name of the process responsible for the changes from your endpoints into the `Endpoint` datamodel in the `Processes` node. #### Required field * Processes.dest * Processes.user * Processes.parent_process_name * Processes.parent_process * Processes.original_file_name * Processes.process_name * Processes.process * Processes.process_id * Processes.parent_process_path * Processes.process_path * Processes.parent_process_id #### Kill Chain Phase * Reconnaissance #### Known False Positives Administrators or power users may use this command for troubleshooting. #### RBA | Risk Score | Impact | Confidence | Message | | ----------- | ----------- |--------------|--------------| | 21.0 | 30 | 70 | Remote system discovery enumeration using WMI on $dest$ by $user$ | #### Reference * [https://attack.mitre.org/techniques/T1018/](https://attack.mitre.org/techniques/T1018/) #### Test Dataset Replay any dataset to Splunk Enterprise by using our [`replay.py`](https://github.com/splunk/attack_data#using-replaypy) tool or the [UI](https://github.com/splunk/attack_data#using-ui). Alternatively you can replay a dataset into a [Splunk Attack Range](https://github.com/splunk/attack_range#replay-dumps-into-attack-range-splunk-server) * [https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1018/AD_discovery/windows-sysmon.log](https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1018/AD_discovery/windows-sysmon.log) [*source*](https://github.com/splunk/security_content/tree/develop/detections/endpoint/getwmiobject_ds_computer_with_powershell.yml) \| *version*: **1**