Techniques
Sample rules
SLUI Spawning a Process
- source: splunk
- technicques:
- T1548.002
- T1548
Description
The following analytic identifies the Microsoft Software Licensing User Interface Tool, slui.exe, spawning a child process. This behavior is associated with publicly known UAC bypass. slui.exe is commonly associated with software updates and is most often spawned by svchost.exe. The slui.exe process should not have child processes, and any processes spawning from it will be running with elevated privileges. During triage, review the child process and additional parallel processes. Identify any file modifications that may have lead to the bypass.
Detection logic
| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes where Processes.parent_process_name=slui.exe by Processes.dest Processes.user Processes.parent_process_name 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)`
| `slui_spawning_a_process_filter`