mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
Raven Tait
78 lines
4.1 KiB
YAML
78 lines
4.1 KiB
YAML
name: Linux Gdrive Binary Activity
|
|
id: a42f8029-5472-4c33-8943-bb17bb07466a
|
|
version: 1
|
|
date: '2025-08-01'
|
|
author: Raven Tait, Splunk
|
|
status: production
|
|
type: TTP
|
|
description: The following analytic detects the execution of the 'gdrive' tool on a
|
|
Linux host. This tool allows standard users to perform tasks associated with Google Drive
|
|
via the command line. This is used by actors to stage tools as well as exfiltrate data.
|
|
The detection leverages data from Endpoint Detection and Response
|
|
(EDR) agents, focusing on process names and command-line executions. If confirmed malicious,
|
|
this could lead to compromise of systems or sensitive data being stolen.
|
|
data_source:
|
|
- Sysmon for Linux EventID 1
|
|
search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time)
|
|
as lastTime from datamodel=Endpoint.Processes where Processes.process_name="gdrive"
|
|
Processes.process IN ("* download *", "* upload *", "* list*", "* update *",
|
|
"* sync *", "* share *", "* account add*", "* drives *", "* files *") by Processes.action Processes.dest
|
|
Processes.original_file_name Processes.parent_process Processes.parent_process_exec
|
|
Processes.parent_process_guid Processes.parent_process_id Processes.parent_process_name
|
|
Processes.parent_process_path Processes.process Processes.process_exec Processes.process_guid
|
|
Processes.process_hash Processes.process_id Processes.process_integrity_level Processes.process_name
|
|
Processes.process_path Processes.user Processes.user_id Processes.vendor_product
|
|
| `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`
|
|
| `linux_gdrive_binary_activity_filter`'
|
|
how_to_implement: The detection is based on data that originates from Endpoint Detection
|
|
and Response (EDR) agents. These agents are designed to provide security-related
|
|
telemetry from the endpoints where the agent is installed. To implement this search,
|
|
you must ingest logs that contain the process GUID, process name, and parent process.
|
|
Additionally, you must ingest complete command-line executions. These logs must
|
|
be processed using the appropriate Splunk Technology Add-ons that are specific to
|
|
the EDR product. The logs must also be mapped to the `Processes` node of the `Endpoint`
|
|
data model. Use the Splunk Common Information Model (CIM) to normalize the field
|
|
names and speed up the data modeling process.
|
|
known_false_positives: Administrator or network operator can use this application
|
|
for automation purposes. Please update the filter macros to remove false positives.
|
|
references:
|
|
- https://cloud.google.com/blog/topics/threat-intelligence/uncovering-unc3886-espionage-operations
|
|
drilldown_searches:
|
|
- name: View the detection results for - "$dest$"
|
|
search: '%original_detection_search% | search dest = "$dest$"'
|
|
earliest_offset: $info_min_time$
|
|
latest_offset: $info_max_time$
|
|
- name: View risk events for the last 7 days for - "$dest$"
|
|
search: '| from datamodel Risk.All_Risk | search normalized_risk_object IN ("$dest$")
|
|
starthoursago=168 | stats count min(_time) as firstTime max(_time) as lastTime
|
|
values(search_name) as "Search Name" values(risk_message) as "Risk Message" values(analyticstories)
|
|
as "Analytic Stories" values(annotations._all) as "Annotations" values(annotations.mitre_attack.mitre_tactic)
|
|
as "ATT&CK Tactics" by normalized_risk_object | `security_content_ctime(firstTime)`
|
|
| `security_content_ctime(lastTime)`'
|
|
earliest_offset: $info_min_time$
|
|
latest_offset: $info_max_time$
|
|
rba:
|
|
message: An instance of $process_name$ was identified
|
|
attempting to interact with Google Drive on endpoint $dest$ by $user$.
|
|
risk_objects:
|
|
- field: dest
|
|
type: system
|
|
score: 49
|
|
threat_objects: []
|
|
tags:
|
|
analytic_story:
|
|
- China-Nexus Threat Activity
|
|
asset_type: Endpoint
|
|
mitre_attack_id:
|
|
- T1567
|
|
product:
|
|
- Splunk Enterprise
|
|
- Splunk Enterprise Security
|
|
- Splunk Cloud
|
|
security_domain: endpoint
|
|
tests:
|
|
- name: True Positive Test
|
|
attack_data:
|
|
- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1567/gdrive/gdrive_linux.log
|
|
sourcetype: sysmon:linux
|
|
source: Syslog:Linux-Sysmon/Operational |