splApache-2.0from splunk/security_content
Disable Windows App Hotkeys
The following analytic detects a suspicious registry modification aimed at disabling Windows hotkeys for native applications. It leverages data from the Endpoint.Registry data model, focusing on specific registry paths and values indicative of this behavior. This activity is significant as it can impair an analyst's ability to use essential tools like Task Manager and Command Prompt, hindering incident response efforts. If confirmed malicious, this technique can allow an attacker to maintain persistence and evade detection, complicating the remediation process.
Quality
67
FP risk
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Rule sourcedetections/endpoint/disable_windows_app_hotkeys.yml
| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime FROM datamodel=Endpoint.Registry WHERE (Registry.registry_path="*\\Windows NT\\CurrentVersion\\Image File Execution Options\\*" AND Registry.registry_value_data= "HotKey Disabled" AND Registry.registry_value_name = "Debugger") by Registry.action Registry.dest Registry.process_guid Registry.process_id Registry.registry_hive Registry.registry_path Registry.registry_key_name Registry.registry_value_data Registry.registry_value_name Registry.registry_value_type Registry.status Registry.user Registry.vendor_product | `drop_dm_object_name(Registry)` | where isnotnull(registry_value_data) | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `disable_windows_app_hotkeys_filter`