none identified. attempts to modify or tamper with the security descriptor settings of the scmanager service should be immediately investigated and understood.

Techniques

T1569.002

Sample rules

Windows ScManager Security Descriptor Tampering Via Sc.EXE

source: splunk
technicques:
- T1569.002

Description

The following analytic detects changes in the ScManager service security descriptor settings. It leverages data from Endpoint Detection and Response (EDR) agents, specifically searching for any process execution involving the “sc.exe” binary with the “sdset” flag targeting the “scmanager” service. If confirmed malicious, this could allow an attacker to escalate their privileges.

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=sc.exe OR Processes.original_file_name=sc.exe) Processes.process="*sdset *" Processes.process="*scmanager*" by Processes.dest Processes.user Processes.parent_process 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_scmanager_security_descriptor_tampering_via_sc_exe_filter`