Name:Windows Chrome Enable Extension Loading via Command-Line id:da355155-1d23-48f9-bf95-e534ae273ab0 version:4 date:None author:Teoderick Contreras, Splunk status:production type:Anomaly Description:The following analytic detects instances where Google Chrome is started with the --disable-features=DisableLoadExtensionCommandLineSwitch flag, effectively enabling the loading of extensions via the command line.
This may indicate attempts to bypass enterprise extension policies, load unauthorized or malicious extensions, or manipulate browser behavior.
Monitoring this activity helps identify potential security policy violations, malware persistence techniques, or other suspicious Chrome modifications.
Data_source:
-Sysmon EventID 1
-Windows Event Log Security 4688
-CrowdStrike ProcessRollup2
search:| tstats `security_content_summariesonly` min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes where Processes.process_name = "Chrome.exe" Processes.process= "*--disable-features*" Processes.process= "*DisableLoadExtensionCommandLineSwitch*" 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)` | `windows_chrome_enable_extension_loading_via_command_line_filter`
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 `Processes` node. In addition, confirm the latest CIM App 4.20 or higher is installed and the latest TA for the endpoint product. known_false_positives:Developers or IT admins loading unpacked extensions for testing or deployment purposes. References: -https://www.gdatasoftware.com/blog/2025/11/38298-learning-about-browser-hijacking drilldown_searches: name:'View the detection results for - "$user$" and "$dest$"' search:'%original_detection_search% | search user = "$user$" dest = "$dest$"' earliest_offset:'$info_min_time$' latest_offset:'$info_max_time$' name:'View risk events for the last 7 days for - "$user$" and "$dest$"' search:'| from datamodel Risk.All_Risk | search normalized_risk_object IN ("$user$", "$dest$") | 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:'7d' latest_offset:'0' analytic_story:['Browser Hijacking']
