Name: SecureBoot
Whether Secureboot is enabled:

Query:

select * from registry where key='HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecureBootStateUEFISecureBootEnabled'

Additional Query Info:
Platform: windows
Interval: 86400

JSON:

{
  "queries": {
    "SecureBoot": {
      "query" : "select * from registry where key='HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecureBootStateUEFISecureBootEnabled'",
      "interval" : "86400",
      "platform" : "windows",
      "version": "",
      "description" : "Whether Secureboot is enabled",
      "value" : ""
    }
  }
}