Microsoft Sentinel Analytic Rules
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BitSight - drop in the headline rating

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Idb11fdc35-6368-4cc0-8128-52cd2e2cdda0
RulenameBitSight - drop in the headline rating
DescriptionRule helps to detect if headline ratings is drop in BitSight.
SeverityHigh
TacticsCommandAndControl
Required data connectorsBitSight
KindScheduled
Query frequency1d
Query period24h
Trigger threshold0
Trigger operatorGreaterThan
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/BitSight/Analytic Rules/BitSightDropInHeadlineRating.yaml
Version1.0.0
Arm templateb11fdc35-6368-4cc0-8128-52cd2e2cdda0.json
Deploy To Azure
let timeframe = 24h;
BitSightGraphData
| where ingestion_time() > ago(timeframe)
| where toint(RatingDifferance) < 0
| project RatingDate, Rating, CompanyName, RatingDifferance
queryPeriod: 24h
kind: Scheduled
id: b11fdc35-6368-4cc0-8128-52cd2e2cdda0
name: BitSight - drop in the headline rating
status: Available
description: |
    'Rule helps to detect if headline ratings is drop in BitSight.'
tactics:
- CommandAndControl
customDetails:
  CompanyName: CompanyName
  CompanyRating: Rating
triggerOperator: GreaterThan
query: |
  let timeframe = 24h;
  BitSightGraphData
  | where ingestion_time() > ago(timeframe)
  | where toint(RatingDifferance) < 0
  | project RatingDate, Rating, CompanyName, RatingDifferance  
queryFrequency: 1d
incidentConfiguration:
  createIncident: false
triggerThreshold: 0
eventGroupingSettings:
  aggregationKind: AlertPerResult
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/BitSight/Analytic Rules/BitSightDropInHeadlineRating.yaml
requiredDataConnectors:
- dataTypes:
  - BitSightGraphData
  connectorId: BitSight
version: 1.0.0
alertDetailsOverride:
  alertDisplayNameFormat: 'BitSight : Alert for drop in the headline rating of {{CompanyName}}.'
  alertDescriptionFormat: 'Alert is generated for {{CompanyName}}.\n\nRating Date: {{RatingDate}}\nRating Drop: {{RatingDifferance}}'
severity: High
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2023-02-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/b11fdc35-6368-4cc0-8128-52cd2e2cdda0')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/b11fdc35-6368-4cc0-8128-52cd2e2cdda0')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "Alert is generated for {{CompanyName}}.\\n\\nRating Date: {{RatingDate}}\\nRating Drop: {{RatingDifferance}}",
          "alertDisplayNameFormat": "BitSight : Alert for drop in the headline rating of {{CompanyName}}."
        },
        "alertRuleTemplateName": "b11fdc35-6368-4cc0-8128-52cd2e2cdda0",
        "customDetails": {
          "CompanyName": "CompanyName",
          "CompanyRating": "Rating"
        },
        "description": "'Rule helps to detect if headline ratings is drop in BitSight.'\n",
        "displayName": "BitSight - drop in the headline rating",
        "enabled": true,
        "entityMappings": null,
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": false
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/BitSight/Analytic Rules/BitSightDropInHeadlineRating.yaml",
        "query": "let timeframe = 24h;\nBitSightGraphData\n| where ingestion_time() > ago(timeframe)\n| where toint(RatingDifferance) < 0\n| project RatingDate, Rating, CompanyName, RatingDifferance\n",
        "queryFrequency": "P1D",
        "queryPeriod": "PT24H",
        "severity": "High",
        "status": "Available",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CommandAndControl"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}