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P4T12ICK
64 lines
2.2 KiB
YAML
64 lines
2.2 KiB
YAML
name: Allow Operation with Consent Admin
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id: 7de17d7a-c9d8-11eb-a812-acde48001122
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version: 2
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date: '2022-01-26'
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author: Teoderick Contreras, Splunk
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status: production
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type: TTP
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description: This analytic identifies a potential privilege escalation attempt to
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perform malicious task. This registry modification is designed to allow the `Consent
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Admin` to perform an operation that requires elevation without consent or credentials.
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We also found this in some attacker to gain privilege escalation to the compromise
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machine.
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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: ConsentPromptBehaviorAdmin
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TargetObject: '*\\Microsoft\\Windows\\CurrentVersion\\Policies\\System*'
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Details: '0x00000000'
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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 endpoint data sources, such as Sysmon. The data
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used for this search is typically generated via logs that report reads and writes
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to the registry.
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known_false_positives: unknown
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references:
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- https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-gpsb/341747f5-6b5d-4d30-85fc-fa1cc04038d4
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- https://www.trendmicro.com/vinfo/no/threat-encyclopedia/malware/Ransom.Win32.MRDEC.MRA/
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tags:
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analytic_story:
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- Ransomware
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- Windows Registry Abuse
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- Azorult
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asset_type: Endpoint
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confidence: 50
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impact: 50
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message: Suspicious registry modification was performed on endpoint $dest$ by user
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$user$. This behavior is indicative of privilege escalation.
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mitre_attack_id:
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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: 25
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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/malware/ransomware_ttp/data1/windows-sysmon.log
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source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
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sourcetype: xmlwineventlog
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