Techniques
Sample rules
Linux Ghostscript Exploitation
- source: splunk
- technicques:
Description
The following analytic detects exploitation of Ghostscript causing command execution. This can be used by attackers to abuse file conversion services or embedded LibreOffice documents.
Detection logic
| tstats `security_content_summariesonly`
count min(_time) as firstTime
max(_time) as lastTime
from datamodel=Endpoint.Processes where
Processes.parent_process_path IN (
"*/gs",
"*/ghostscript"
)
Processes.process="sh -c*"
by Processes.process Processes.vendor_product Processes.user_id
Processes.process_hash Processes.parent_process_name
Processes.parent_process_exec Processes.action Processes.dest
Processes.process_current_directory Processes.process_path
Processes.process_integrity_level Processes.original_file_name
Processes.parent_process Processes.parent_process_path
Processes.parent_process_guid Processes.parent_process_id
Processes.process_guid Processes.process_id Processes.user
Processes.process_name
| `drop_dm_object_name(Processes)`
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
| `linux_ghostscript_exploitation_filter`