CYFIRMA - High severity Malicious Phishing Network Indicators - Monitor Recommended Rule

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Id	359e2afb-b6d4-45db-90aa-c89ce7234d72
Rulename	CYFIRMA - High severity Malicious Phishing Network Indicators - Monitor Recommended Rule
Description	“This analytics rule identifies network-based indicators such as URLs, IP addresses, and domains related to phishing campaigns, as reported by CYFIRMA threat intelligence. These indicators are flagged with a recommended action to block and are categorized under the ‘Phishing’ role. Such infrastructure is often used to deliver phishing emails, host fake login portals, or redirect victims to credential-harvesting pages. monitoring these indicators proactively helps prevent user compromise and data theft.”
Severity	High
Tactics	InitialAccess Execution CredentialAccess Exfiltration
Techniques	T1566 T1204 T1556 T1110 T1041 T1566.001 T1566.002 T1204.001 T1556.002 T1110.003
Required data connectors	CyfirmaCyberIntelligenceDC
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	GreaterThan
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Cyber%20Intelligence/Analytic%20Rules/PhishingNetworkIndicatorsMonitorHighSeverityRule.yaml
Version	1.0.1
Arm template	359e2afb-b6d4-45db-90aa-c89ce7234d72.json

KQL

//Phishing Network Indicators - Monitor Recommended
let timeFrame= 5m;
CyfirmaIndicators_CL 
| where ConfidenceScore >= 80
    and TimeGenerated between (ago(timeFrame) .. now())
    and pattern !contains 'file:hashes' and RecommendedActions has 'Monitor' and Roles has 'Phishing'
| extend IPv4 = extract(@"ipv4-addr:value\s*=\s*'([^']+)'", 1, pattern)
| extend IPv6 = extract(@"ipv6-addr:value\s*=\s*'([^']+)'", 1, pattern)
| extend URL = extract(@"url:value\s*=\s*'([^']+)'", 1, pattern)
| extend Domain = extract(@"domain-name:value\s*=\s*'([^']+)'", 1, pattern)
| extend parsed = parse_json(extensions)
| extend extensionKeys = bag_keys(parsed)
| mv-expand extensionKeys
| extend extensionKeyStr = tostring(extensionKeys)
| extend ext = parsed[extensionKeyStr]
| extend props = ext.properties
| extend 
    extension_id = extensionKeyStr,
    ASN_Owner = props.asn_owner,
    ASN = props.asn,
    ProviderName = 'CYFIRMA',
    ProductName = 'DeCYFIR/DeTCT'
| project
    IPv4,
    IPv6,
    URL,
    Domain,
    ThreatActors,
    RecommendedActions,
    Sources,
    Roles,
    Country,
    IPAbuse,
    name,
    Description,
    ConfidenceScore,
    IndicatorID,
    created,
    modified,
    valid_from,
    Tags,
    ThreatType,
    TimeGenerated,
    SecurityVendors,
    ProductName,
    ProviderName

YAML

tactics:
- InitialAccess
- Execution
- CredentialAccess
- Exfiltration
triggerThreshold: 0
relevantTechniques:
- T1566
- T1204
- T1556
- T1110
- T1041
- T1566.001
- T1566.002
- T1204.001
- T1556.002
- T1110.003
queryPeriod: 5m
name: CYFIRMA - High severity Malicious Phishing Network Indicators - Monitor Recommended Rule
customDetails:
  ValidFrom: valid_from
  IndicatorID: IndicatorID
  IPAbuse: IPAbuse
  Description: Description
  SecurityVendors: SecurityVendors
  ThreatType: ThreatType
  Roles: Roles
  TimeGenerated: TimeGenerated
  ConfidenceScore: ConfidenceScore
  Sources: Sources
  Country: Country
  Tags: Tags
  Modified: modified
  RecommendedActions: RecommendedActions
  Created: created
  ThreatActors: ThreatActors
description: |
  "This analytics rule identifies network-based indicators such as URLs, IP addresses, and domains related to phishing campaigns, as reported by CYFIRMA threat intelligence. 
  These indicators are flagged with a recommended action to block and are categorized under the 'Phishing' role.
  Such infrastructure is often used to deliver phishing emails, host fake login portals, or redirect victims to credential-harvesting pages. 
  monitoring these indicators proactively helps prevent user compromise and data theft."
eventGroupingSettings:
  aggregationKind: AlertPerResult
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Cyber%20Intelligence/Analytic%20Rules/PhishingNetworkIndicatorsMonitorHighSeverityRule.yaml
kind: Scheduled
suppressionEnabled: true
suppressionDuration: 5m
entityMappings:
- fieldMappings:
  - columnName: IPv4
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: IPv6
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: Domain
    identifier: DomainName
  entityType: DNS
- fieldMappings:
  - columnName: URL
    identifier: Url
  entityType: URL
severity: High
alertDetailsOverride:
  alertDynamicProperties:
  - alertProperty: ProductName
    value: ProductName
  - alertProperty: ProviderName
    value: ProviderName
  alertDescriptionFormat: '{{Description}} - {{name}} '
  alertDisplayNameFormat: 'High-Confidence Malicious Phishing Network Indicators - Monitor Recommended - {{name}} '
incidentConfiguration:
  groupingConfiguration:
    reopenClosedIncident: false
    matchingMethod: AllEntities
    enabled: false
    lookbackDuration: PT5H
  createIncident: true
triggerOperator: GreaterThan
id: 359e2afb-b6d4-45db-90aa-c89ce7234d72
enabled: false
version: 1.0.1
requiredDataConnectors:
- connectorId: CyfirmaCyberIntelligenceDC
  dataTypes:
  - CyfirmaIndicators_CL
query: |
  //Phishing Network Indicators - Monitor Recommended
  let timeFrame= 5m;
  CyfirmaIndicators_CL 
  | where ConfidenceScore >= 80
      and TimeGenerated between (ago(timeFrame) .. now())
      and pattern !contains 'file:hashes' and RecommendedActions has 'Monitor' and Roles has 'Phishing'
  | extend IPv4 = extract(@"ipv4-addr:value\s*=\s*'([^']+)'", 1, pattern)
  | extend IPv6 = extract(@"ipv6-addr:value\s*=\s*'([^']+)'", 1, pattern)
  | extend URL = extract(@"url:value\s*=\s*'([^']+)'", 1, pattern)
  | extend Domain = extract(@"domain-name:value\s*=\s*'([^']+)'", 1, pattern)
  | extend parsed = parse_json(extensions)
  | extend extensionKeys = bag_keys(parsed)
  | mv-expand extensionKeys
  | extend extensionKeyStr = tostring(extensionKeys)
  | extend ext = parsed[extensionKeyStr]
  | extend props = ext.properties
  | extend 
      extension_id = extensionKeyStr,
      ASN_Owner = props.asn_owner,
      ASN = props.asn,
      ProviderName = 'CYFIRMA',
      ProductName = 'DeCYFIR/DeTCT'
  | project
      IPv4,
      IPv6,
      URL,
      Domain,
      ThreatActors,
      RecommendedActions,
      Sources,
      Roles,
      Country,
      IPAbuse,
      name,
      Description,
      ConfidenceScore,
      IndicatorID,
      created,
      modified,
      valid_from,
      Tags,
      ThreatType,
      TimeGenerated,
      SecurityVendors,
      ProductName,
      ProviderName
queryFrequency: 5m

ARM

{
  "$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/359e2afb-b6d4-45db-90aa-c89ce7234d72')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/359e2afb-b6d4-45db-90aa-c89ce7234d72')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "{{Description}} - {{name}} ",
          "alertDisplayNameFormat": "High-Confidence Malicious Phishing Network Indicators - Monitor Recommended - {{name}} ",
          "alertDynamicProperties": [
            {
              "alertProperty": "ProductName",
              "value": "ProductName"
            },
            {
              "alertProperty": "ProviderName",
              "value": "ProviderName"
            }
          ]
        },
        "alertRuleTemplateName": "359e2afb-b6d4-45db-90aa-c89ce7234d72",
        "customDetails": {
          "ConfidenceScore": "ConfidenceScore",
          "Country": "Country",
          "Created": "created",
          "Description": "Description",
          "IndicatorID": "IndicatorID",
          "IPAbuse": "IPAbuse",
          "Modified": "modified",
          "RecommendedActions": "RecommendedActions",
          "Roles": "Roles",
          "SecurityVendors": "SecurityVendors",
          "Sources": "Sources",
          "Tags": "Tags",
          "ThreatActors": "ThreatActors",
          "ThreatType": "ThreatType",
          "TimeGenerated": "TimeGenerated",
          "ValidFrom": "valid_from"
        },
        "description": "\"This analytics rule identifies network-based indicators such as URLs, IP addresses, and domains related to phishing campaigns, as reported by CYFIRMA threat intelligence. \nThese indicators are flagged with a recommended action to block and are categorized under the 'Phishing' role.\nSuch infrastructure is often used to deliver phishing emails, host fake login portals, or redirect victims to credential-harvesting pages. \nmonitoring these indicators proactively helps prevent user compromise and data theft.\"\n",
        "displayName": "CYFIRMA - High severity Malicious Phishing Network Indicators - Monitor Recommended Rule",
        "enabled": false,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPv4",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPv6",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "DNS",
            "fieldMappings": [
              {
                "columnName": "Domain",
                "identifier": "DomainName"
              }
            ]
          },
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "URL",
                "identifier": "Url"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": false,
            "lookbackDuration": "PT5H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Cyber%20Intelligence/Analytic%20Rules/PhishingNetworkIndicatorsMonitorHighSeverityRule.yaml",
        "query": "//Phishing Network Indicators - Monitor Recommended\nlet timeFrame= 5m;\nCyfirmaIndicators_CL \n| where ConfidenceScore >= 80\n    and TimeGenerated between (ago(timeFrame) .. now())\n    and pattern !contains 'file:hashes' and RecommendedActions has 'Monitor' and Roles has 'Phishing'\n| extend IPv4 = extract(@\"ipv4-addr:value\\s*=\\s*'([^']+)'\", 1, pattern)\n| extend IPv6 = extract(@\"ipv6-addr:value\\s*=\\s*'([^']+)'\", 1, pattern)\n| extend URL = extract(@\"url:value\\s*=\\s*'([^']+)'\", 1, pattern)\n| extend Domain = extract(@\"domain-name:value\\s*=\\s*'([^']+)'\", 1, pattern)\n| extend parsed = parse_json(extensions)\n| extend extensionKeys = bag_keys(parsed)\n| mv-expand extensionKeys\n| extend extensionKeyStr = tostring(extensionKeys)\n| extend ext = parsed[extensionKeyStr]\n| extend props = ext.properties\n| extend \n    extension_id = extensionKeyStr,\n    ASN_Owner = props.asn_owner,\n    ASN = props.asn,\n    ProviderName = 'CYFIRMA',\n    ProductName = 'DeCYFIR/DeTCT'\n| project\n    IPv4,\n    IPv6,\n    URL,\n    Domain,\n    ThreatActors,\n    RecommendedActions,\n    Sources,\n    Roles,\n    Country,\n    IPAbuse,\n    name,\n    Description,\n    ConfidenceScore,\n    IndicatorID,\n    created,\n    modified,\n    valid_from,\n    Tags,\n    ThreatType,\n    TimeGenerated,\n    SecurityVendors,\n    ProductName,\n    ProviderName\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "subTechniques": [
          "T1566.001",
          "T1566.002",
          "T1204.001",
          "T1556.002",
          "T1110.003"
        ],
        "suppressionDuration": "PT5M",
        "suppressionEnabled": true,
        "tactics": [
          "CredentialAccess",
          "Execution",
          "Exfiltration",
          "InitialAccess"
        ],
        "techniques": [
          "T1041",
          "T1110",
          "T1204",
          "T1556",
          "T1566"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}