splunk-security_content/dev/endpoint/etw_registry_disabled.yml

name: ETW Registry Disabled
id: 8ed523ac-276b-11ec-ac39-acde48001122
version: 2
date: '2022-01-28'
author: Teoderick Contreras, Splunk
status: production
type: TTP
description: This analytic is to detect a registry modification to disable ETW feature
  of windows. This technique is to evade EDR appliance to evade detections and hide
  its execution from audit logs.
data_source:
- Sysmon Event ID 13
search:
  selection1:
    Registry.registry_value_name: ETWEnabled
    TargetObject: '*\\SOFTWARE\\Microsoft\\.NETFramework*'
    Details: '0x00000000'
  condition: selection1
how_to_implement: To successfully implement this search, you must be ingesting data
  that records registry activity from your hosts to populate the endpoint data model
  in the registry node. This is typically populated via endpoint detection-and-response
  product, such as Carbon Black or endpoint data sources, such as Sysmon. The data
  used for this search is typically generated via logs that report reads and writes
  to the registry.
known_false_positives: unknown
references:
- https://gist.github.com/Cyb3rWard0g/a4a115fd3ab518a0e593525a379adee3
tags:
  analytic_story:
  - Windows Persistence Techniques
  - Windows Privilege Escalation
  - Windows Registry Abuse
  - Hermetic Wiper
  asset_type: Endpoint
  confidence: 100
  impact: 90
  message: modified/added/deleted registry entry $Registry.registry_path$ in $dest$
  mitre_attack_id:
  - T1562.006
  - T1127
  - T1562
  observable:
  - name: dest
    type: Hostname
    role:
    - Victim
  - name: user
    type: User
    role:
    - Victim
  product:
  - Splunk Enterprise
  - Splunk Enterprise Security
  - Splunk Cloud
  risk_score: 90
  security_domain: endpoint
tests:
- name: True Positive Test
  attack_data:
  - data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1127/etw_disable/sysmon.log
    source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
    sourcetype: xmlwineventlog