Techniques
Sample rules
Windows Remote Service Rdpwinst Tool Execution
- source: splunk
- technicques:
- T1021.001
- T1021
Description
The following analytic identifies RDPWInst.exe tool, which is a RDP wrapper library tool designed to enable remote desktop host support and concurrent RDP session on reduced functionality system. Unfortunately, this open project was abused by adversaries to enable RDP connection to the targeted host for remote access and potentially be for lateral movement.
Detection logic
| tstats `security_content_summariesonly` values(Processes.process) as process min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes where (Processes.process_name="RDPWInst.exe" OR Processes.original_file_name="RDPWInst.exe") AND Processes.process IN ("* -i*", "* -s*", "* -o*", "* -w*", "* -r*") by Processes.dest Processes.user Processes.parent_process 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_remote_service_rdpwinst_tool_execution_filter`