This search looks for arguments to sc.exe indicating the creation or modification of a Windows service.
- Type: TTP
- Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
- Datamodel: Endpoint
- Last Updated: 2020-07-21
- Author: Rico Valdez, Splunk
- ID: f0c693d8-2a89-4ce7-80b4-98fea4c3ea6d
Kill Chain Phase
- CIS 3
- CIS 5
- CIS 8
1 2 3 4 5 6 | 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 (Processes.process="* create *" OR Processes.process="* config *") by Processes.process_name Processes.parent_process_name Processes.dest Processes.user | `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `sc_exe_manipulating_windows_services_filter`
The SPL above uses the following Macros:
sc_exe_manipulating_windows_services_filter is a empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.
Supported Add-on (TA)
List of Splunk Add-on’s tested to work with the analytic.
List of fields required to use this analytic.
How To Implement
To successfully implement this search you need to be ingesting information on process that include the name of the process responsible for the changes from your endpoints into the
Endpoint datamodel in the
Known False Positives
Using sc.exe to manipulate Windows services is uncommon. However, there may be legitimate instances of this behavior. It is important to validate and investigate as appropriate.
Associated Analytic Story
- Windows Service Abuse
- DHS Report TA18-074A
- Orangeworm Attack Group
- Windows Persistence Techniques
- Disabling Security Tools
- NOBELIUM Group
|56.0||70||80||A sc process $process_name$ with commandline $process$ to create of configure services in host $dest$|
The Risk Score is calculated by the following formula: Risk Score = (Impact * Confidence/100). Initial Confidence and Impact is set by the analytic author.
source | version: 4