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https://github.com/splunk/security_content
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P4T12ICK
66 lines
2.9 KiB
YAML
66 lines
2.9 KiB
YAML
name: Disabling FolderOptions Windows Feature
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id: 83776de4-921a-11eb-868a-acde48001122
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version: 1
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date: '2021-03-31'
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author: Teoderick Contreras, Splunk
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type: TTP
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datamodel:
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- Endpoint
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description: This search is to identify registry modification to disable folder options
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feature of windows to show hidden files, file extension and etc. This technique
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used by malware in combination if disabling show hidden files feature to hide their
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files and also to hide the file extension to lure the user base on file icons or
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fake file extensions.
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search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time)
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as lastTime from datamodel=Endpoint.Registry where Registry.registry_path= "*\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer\\NoFolderOptions"
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Registry.registry_value_name = "DWORD (0x00000001)" by Registry.registry_path Registry.registry_key_name
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Registry.registry_value_name Registry.dest | `drop_dm_object_name(Registry)` | `security_content_ctime(firstTime)`
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| `security_content_ctime(lastTime)` | `disabling_folderoptions_windows_feature_filter`'
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how_to_implement: To successfully implement this search you need to be ingesting information
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on process that include the name of the process responsible for the changes from
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your endpoints into the `Endpoint` datamodel in the `Registry` node. Also make sure
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that this registry was included in your config files ex. sysmon config to be monitored.
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known_false_positives: admin may disable this application for non technical user.
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references:
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- https://any.run/report/ea4ea08407d4ee72e009103a3b77e5a09412b722fdef67315ea63f22011152af/a866d7b1-c236-4f26-a391-5ae32213dfc4#registry
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tags:
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analytic_story:
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- Windows Defense Evasion Tactics
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automated_detection_testing: passed
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confidence: 50
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context:
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- Source:Endpoint
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- Stage:Defense Evasion
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dataset:
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- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1562.001/win_app_defender_disabling/windows-security.log
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- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1562.001/win_app_defender_disabling/windows-system.log
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- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1562.001/win_app_defender_disabling/windows-sysmon.log
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impact: 50
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kill_chain_phases:
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- Exploitation
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message: The Windows Folder Options, to hide files, was disabled on $dest$ by $user$.
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mitre_attack_id:
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- T1562.001
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observable:
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- name: user
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type: User
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role:
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- Victim
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- name: dest
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type: Hostname
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role:
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- Victim
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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required_fields:
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- _time
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- Registry.registry_key_name
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- Registry.registry_path
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- Registry.user
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- Registry.dest
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- Registry.registry_value_name
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risk_score: 25
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security_domain: endpoint
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