there may be false positives generated due to the reliance on version numbers for identification purposes. despite this limitation, the primary goal of this approach is to aid in the detection of the software within the environment.

Techniques

T1195.002

Sample rules

Hunting 3CXDesktopApp Software

source: splunk
technicques:
- T1195.002

Description

The hunting analytic outlined below is designed to detect any version of the 3CXDesktopApp, also known as the 3CX Desktop App, operating on either Mac or Windows systems. It is important to note that this particular analytic employs the Endpoint datamodel Processes node, which means that the file version information is not provided. Recently, 3CX has identified a vulnerability specifically in versions 18.12.407 and 18.12.416 of the desktop app.

Detection logic


| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes where Processes.process_name=3CXDesktopApp.exe OR Processes.process_name="3CX Desktop App" 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)` 
| `hunting_3cxdesktopapp_software_filter`