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
TacticsReconnaissance
CommandAndControl
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
Version1.0.1
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
status: Available
triggerOperator: GreaterThan
triggerThreshold: 0
name: BitSight - drop in the headline rating
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}}.'
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/BitSight/Analytic Rules/BitSightDropInHeadlineRating.yaml
queryPeriod: 24h
severity: High
eventGroupingSettings:
  aggregationKind: AlertPerResult
requiredTechniques:
- T1591
- T1090
queryFrequency: 1d
requiredDataConnectors:
- dataTypes:
  - BitSightGraphData
  connectorId: BitSight
kind: Scheduled
customDetails:
  CompanyName: CompanyName
  CompanyRating: Rating
incidentConfiguration:
  createIncident: false
description: |
    'Rule helps to detect if headline ratings is drop in BitSight.'
tactics:
- Reconnaissance
- CommandAndControl
query: |
  let timeframe = 24h;
  BitSightGraphData
  | where ingestion_time() > ago(timeframe)
  | where toint(RatingDifferance) < 0
  | project RatingDate, Rating, CompanyName, RatingDifferance  
id: b11fdc35-6368-4cc0-8128-52cd2e2cdda0
version: 1.0.1
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-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",
        "requiredTechniques": [
          "T1591",
          "T1090"
        ],
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CommandAndControl",
          "Reconnaissance"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}