Cyren High-Risk URL Indicators

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Id	6e8f9c4b-2a3b-5c6d-0e1f-d2e3f4a5b6c7
Rulename	Cyren High-Risk URL Indicators
Description	Detects high-risk URL indicators (risk score >= 80) from Cyren malware URL threat intelligence feeds in the last 24 hours. These URLs are associated with malware distribution, phishing campaigns, or other malicious content hosting.
Severity	High
Tactics	InitialAccess Execution
Techniques	T1566 T1189
Required data connectors	CyrenThreatIntel
Kind	Scheduled
Query frequency	1h
Query period	1d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CyrenThreatIntelligence/Analytic Rules/Cyren - High Risk URL Indicators.yaml
Version	1.0.0
Arm template	6e8f9c4b-2a3b-5c6d-0e1f-d2e3f4a5b6c7.json

KQL

Cyren_Indicators_CL
| where TimeGenerated > ago(1d)
| where isnotempty(url_s)
| extend Risk = toint(risk_d)
| where Risk >= 80
| summarize 
    DetectionCount = count(), 
    MaxRisk = max(Risk), 
    Categories = make_set(category_s) 
  by URL = url_s, Domain = domain_s, Source = source_s
| where DetectionCount >= 1
| extend 
    MaliciousURL = URL,
    ThreatCategories = strcat_array(Categories, ", ")

YAML

entityMappings:
- entityType: URL
  fieldMappings:
  - identifier: Url
    columnName: MaliciousURL
tactics:
- InitialAccess
- Execution
suppressionEnabled: false
suppressionDuration: 1h
requiredDataConnectors:
- dataTypes:
  - Cyren_Indicators_CL
  connectorId: CyrenThreatIntel
incidentConfiguration:
  groupingConfiguration:
    reopenClosedIncident: false
    lookbackDuration: 1d
    groupByEntities:
    - URL
    enabled: true
    matchingMethod: Selected
  createIncident: true
id: 6e8f9c4b-2a3b-5c6d-0e1f-d2e3f4a5b6c7
severity: High
eventGroupingSettings:
  aggregationKind: AlertPerResult
status: Available
customDetails:
  DetectionCount: DetectionCount
  Source: Source
  Categories: ThreatCategories
  RiskScore: MaxRisk
  Domain: Domain
query: |
  Cyren_Indicators_CL
  | where TimeGenerated > ago(1d)
  | where isnotempty(url_s)
  | extend Risk = toint(risk_d)
  | where Risk >= 80
  | summarize 
      DetectionCount = count(), 
      MaxRisk = max(Risk), 
      Categories = make_set(category_s) 
    by URL = url_s, Domain = domain_s, Source = source_s
  | where DetectionCount >= 1
  | extend 
      MaliciousURL = URL,
      ThreatCategories = strcat_array(Categories, ", ")  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CyrenThreatIntelligence/Analytic Rules/Cyren - High Risk URL Indicators.yaml
kind: Scheduled
queryPeriod: 1d
version: 1.0.0
name: Cyren High-Risk URL Indicators
queryFrequency: 1h
triggerThreshold: 0
relevantTechniques:
- T1566
- T1189
description: |
  'Detects high-risk URL indicators (risk score >= 80) from Cyren malware URL threat intelligence feeds in the last 24 hours.
  These URLs are associated with malware distribution, phishing campaigns, or other malicious content hosting.'  
triggerOperator: gt

ARM