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https://github.com/splunk/security_content
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P4T12ICK
63 lines
2.1 KiB
YAML
63 lines
2.1 KiB
YAML
name: Disabling Remote User Account Control
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id: bbc644bc-37df-4e1a-9c88-ec9a53e2038c
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version: 4
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date: '2020-11-18'
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author: David Dorsey, Patrick Bareiss, Splunk
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status: production
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type: TTP
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description: The search looks for modifications to registry keys that control the
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enforcement of Windows User Account Control (UAC).
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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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Details: '0x00000000'
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TargetObject: '*HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System\\EnableLUA*'
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condition: selection1
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how_to_implement: To successfully implement this search, you must be ingesting data
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that records registry activity from your hosts to populate the endpoint data model
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in the registry node. This is typically populated via endpoint detection-and-response
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product, such as Carbon Black, or via other endpoint data sources, such as Sysmon.
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The data used for this search is typically generated via logs that report registry
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modifications.
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known_false_positives: This registry key may be modified via administrators to implement
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a change in system policy. This type of change should be a very rare occurrence.
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references: []
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tags:
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analytic_story:
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- Windows Defense Evasion Tactics
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- Suspicious Windows Registry Activities
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- Remcos
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- Windows Registry Abuse
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- Azorult
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- AgentTesla
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asset_type: Endpoint
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confidence: 60
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impact: 70
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message: The Windows registry keys that control the enforcement of Windows User
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Account Control (UAC) were modified on $dest$ by $user$.
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mitre_attack_id:
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- T1548.002
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- T1548
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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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risk_score: 42
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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/T1548.002/atomic_red_team/windows-sysmon.log
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source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
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sourcetype: xmlwineventlog
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