administrators and third party software may create this registry entry.

Techniques

T1112

Sample rules

Windows SnappyBee Create Test Registry

source: splunk
technicques:
- T1112

Description

The following analytic detects modifications to the Windows registry under SOFTWARE\Microsoft\Test, a location rarely used by legitimate applications in a production environment. Monitoring this key is crucial, as adversaries may create or alter values here for monitoring update of itself file path, updated configuration file, or system mark compromised. The detection leverages Sysmon Event ID 13 (Registry Value Set) to identify unauthorized changes. Analysts should investigate processes associated with these modifications, particularly unsigned executables or suspicious command-line activity, as they may indicate malware or unauthorized software behavior.

Detection logic


| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime FROM datamodel=Endpoint.Registry WHERE Registry.registry_path = "*\\SOFTWARE\\Microsoft\\Test\\*" BY Registry.registry_path Registry.registry_key_name Registry.registry_value_name Registry.registry_value_data Registry.process_guid Registry.dest Registry.user 
| `drop_dm_object_name(Registry)` 
| `security_content_ctime(firstTime)` 
| `security_content_ctime(lastTime)` 
| `windows_snappybee_create_test_registry_filter`