Windows Lateral Tool Transfer RemCom
This analytic identifies the use of RemCom.exe - The open source psexec. This utility provides the ability to move laterally and run scripts or commands remotely.
- Type: TTP
- Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
- Datamodel: Endpoint
- Last Updated: 2023-03-20
- Author: Michael Haag, Splunk
- ID: e373a840-5bdc-47ef-b2fd-9cc7aaf387f0
Kill Chain Phase
- CIS 10
1 2 3 4 5 6 | tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes where (Processes.process_name=remcom.exe OR Processes.original_file_name=RemCom.exe) Processes.process="*\\*" Processes.process IN ("*/user:*", "*/pwd:*") by Processes.dest Processes.user Processes.parent_process_name Processes.process_name Processes.original_file_name Processes.process Processes.process_id Processes.parent_process_id | `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `windows_lateral_tool_transfer_remcom_filter`
The SPL above uses the following Macros:
windows_lateral_tool_transfer_remcom_filter is a empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.
List of fields required to use this analytic.
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. In addition, confirm the latest CIM App 4.20 or higher is installed and the latest TA for the endpoint product.
Known False Positives
False positives may be present based on Administrative use. Filter as needed.
Associated Analytic Story
|40.0||80||50||An instance of $parent_process_name$ spawning $process_name$ was identified on endpoint $dest$ by user $user$ attempting to move laterally.|
The Risk Score is calculated by the following formula: Risk Score = (Impact * Confidence/100). Initial Confidence and Impact is set by the analytic author.
Replay any dataset to Splunk Enterprise by using our
replay.py tool or the UI.
Alternatively you can replay a dataset into a Splunk Attack Range
source | version: 1