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

Back


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

enabled: false
severity: High
tactics:
- InitialAccess
- Execution
- CredentialAccess
- Exfiltration
queryFrequency: 5m
id: 359e2afb-b6d4-45db-90aa-c89ce7234d72
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
suppressionDuration: 5m
incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: PT5H
    matchingMethod: AllEntities
    reopenClosedIncident: false
    enabled: false
  createIncident: true
customDetails:
  RecommendedActions: RecommendedActions
  Modified: modified
  IPAbuse: IPAbuse
  Sources: Sources
  Description: Description
  Tags: Tags
  IndicatorID: IndicatorID
  ConfidenceScore: ConfidenceScore
  TimeGenerated: TimeGenerated
  ThreatType: ThreatType
  ValidFrom: valid_from
  Roles: Roles
  Created: created
  SecurityVendors: SecurityVendors
  ThreatActors: ThreatActors
  Country: Country
kind: Scheduled
triggerOperator: GreaterThan
name: CYFIRMA - High severity Malicious Phishing Network Indicators - Monitor Recommended Rule
entityMappings:
- fieldMappings:
  - identifier: Address
    columnName: IPv4
  entityType: IP
- fieldMappings:
  - identifier: Address
    columnName: IPv6
  entityType: IP
- fieldMappings:
  - identifier: DomainName
    columnName: Domain
  entityType: DNS
- fieldMappings:
  - identifier: Url
    columnName: URL
  entityType: URL
version: 1.0.1
requiredDataConnectors:
- dataTypes:
  - CyfirmaIndicators_CL
  connectorId: CyfirmaCyberIntelligenceDC
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."
relevantTechniques:
- T1566
- T1204
- T1556
- T1110
- T1041
- T1566.001
- T1566.002
- T1204.001
- T1556.002
- T1110.003
queryPeriod: 5m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Cyber%20Intelligence/Analytic%20Rules/PhishingNetworkIndicatorsMonitorHighSeverityRule.yaml
triggerThreshold: 0
suppressionEnabled: true
eventGroupingSettings:
  aggregationKind: AlertPerResult
alertDetailsOverride:
  alertDisplayNameFormat: 'High-Confidence Malicious Phishing Network Indicators - Monitor Recommended - {{name}} '
  alertDescriptionFormat: '{{Description}} - {{name}} '
  alertDynamicProperties:
  - alertProperty: ProductName
    value: ProductName
  - alertProperty: ProviderName
    value: ProviderName

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"
    }
  ]
}