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P4T12ICK
61 lines
2.1 KiB
YAML
61 lines
2.1 KiB
YAML
name: Windows Hide Notification Features Through Registry
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id: cafa4bce-9f06-11ec-a7b2-acde48001122
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version: 1
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date: '2022-03-08'
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author: Teoderick Contreras, Splunk
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status: production
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type: Anomaly
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description: This analytic is to detect a suspicious registry modification to hide
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common windows notification feature from compromised host. This technique was seen
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in some ransomware family to add more impact to its payload that are visually seen
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by user aside from the encrypted files and ransomware notes. Even this a good anomaly
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detection, administrator may implement this changes for auditing or security reason.
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In this scenario filter is needed.
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data_source:
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- Sysmon Event ID 13
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search:
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selection1:
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Registry.registry_value_name:
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- HideClock
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- HideSCAHealth
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- HideSCANetwork
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- HideSCAPower
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- HideSCAVolume
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TargetObject: '*\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer\\*'
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Details: '0x00000001'
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condition: selection1
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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 Filesystem responsible for the changes from
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your endpoints into the `Endpoint` datamodel in the `Processes` and `Registry` node.
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known_false_positives: unknown
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references:
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- https://www.trendmicro.com/vinfo/us/threat-encyclopedia/malware/Ransom.Win32.ONALOCKER.A/
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tags:
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analytic_story:
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- Ransomware
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- Windows Defense Evasion Tactics
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- Windows Registry Abuse
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asset_type: Endpoint
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confidence: 70
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impact: 70
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message: Registry modification to hide windows notification on $dest$
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mitre_attack_id:
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- T1112
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observable:
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- name: dest
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type: Endpoint
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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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risk_score: 49
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security_domain: endpoint
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tests:
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- name: True Positive Test
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attack_data:
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- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1112/ransomware_disable_reg/sysmon.log
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source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
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sourcetype: xmlwineventlog
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