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

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, ", ")  
entityMappings:
- fieldMappings:
  - identifier: Url
    columnName: MaliciousURL
  entityType: URL
triggerOperator: gt
incidentConfiguration:
  groupingConfiguration:
    groupByEntities:
    - URL
    lookbackDuration: 1d
    reopenClosedIncident: false
    matchingMethod: Selected
    enabled: true
  createIncident: true
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.'  
suppressionDuration: 1h
tactics:
- InitialAccess
- Execution
severity: High
queryFrequency: 1h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CyrenThreatIntelligence/Analytic Rules/Cyren - High Risk URL Indicators.yaml
kind: Scheduled
name: Cyren High-Risk URL Indicators
eventGroupingSettings:
  aggregationKind: AlertPerResult
triggerThreshold: 0
status: Available
suppressionEnabled: false
id: 6e8f9c4b-2a3b-5c6d-0e1f-d2e3f4a5b6c7
requiredDataConnectors:
- connectorId: CyrenThreatIntel
  dataTypes:
  - Cyren_Indicators_CL
relevantTechniques:
- T1566
- T1189
version: 1.0.0
customDetails:
  RiskScore: MaxRisk
  Domain: Domain
  DetectionCount: DetectionCount
  Categories: ThreatCategories
  Source: Source
queryPeriod: 1d

ARM