CybleVision Alerts Telegram Mentions

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Id	4238f545-8b6f-4f7c-80b5-14cca2cebc99
Rulename	CybleVision Alerts Telegram Mentions
Description	Detects mentions of monitored keywords across Telegram channels and groups. Extracts message content, URLs, chat metadata, user identity, and timestamps.
Severity	Low
Tactics	Reconnaissance ResourceDevelopment InitialAccess CommandAndControl
Techniques	T1598 T1585 T1102
Required data connectors	CybleVisionAlerts
Kind	Scheduled
Query frequency	30m
Query period	30m
Trigger threshold	0
Trigger operator	GreaterThan
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble Vision/Analytic Rules/Alerts_Telegram_Mentions.yaml
Version	1.0.0
Arm template	4238f545-8b6f-4f7c-80b5-14cca2cebc99.json

KQL

Alerts_telegram_mentions 
| where Service == "telegram_mentions" 
| extend MappedSeverity = Severity

YAML

id: 4238f545-8b6f-4f7c-80b5-14cca2cebc99
enabled: true
relevantTechniques:
- T1598
- T1585
- T1102
suppressionDuration: PT5H
query: |
  Alerts_telegram_mentions 
  | where Service == "telegram_mentions" 
  | extend MappedSeverity = Severity  
entityMappings:
- fieldMappings:
  - identifier: Name
    columnName: TG_Username2
  entityType: Account
- fieldMappings:
  - identifier: Url
    columnName: TG_Urls
  entityType: URL
eventGroupingSettings:
  aggregationKind: AlertPerResult
requiredDataConnectors:
- dataTypes:
  - CybleVisionAlerts_CL
  connectorId: CybleVisionAlerts
triggerOperator: GreaterThan
queryFrequency: 30m
queryPeriod: 30m
status: Available
incidentConfiguration:
  groupingConfiguration:
    enabled: false
    reopenClosedIncident: false
    matchingMethod: AllEntities
    lookbackDuration: PT5H
  createIncident: true
subTechniques: []
name: CybleVision Alerts Telegram Mentions
kind: Scheduled
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyble Vision/Analytic Rules/Alerts_Telegram_Mentions.yaml
description: |
    'Detects mentions of monitored keywords across Telegram channels and groups. Extracts message content, URLs, chat metadata, user identity, and timestamps.'
severity: Low
tactics:
- Reconnaissance
- ResourceDevelopment
- InitialAccess
- CommandAndControl
triggerThreshold: 0
version: 1.0.0
alertDetailsOverride:
  alertDynamicProperties: []
  alertDisplayNameFormat: CybleVision Telegram Mention in {{TG_ChatTitle}}
  alertDescriptionFormat: |
        A Telegram post mentioning monitored keywords was detected. User {{TG_Username2}}. Message {{TG_Message}} URL {{TG_Urls}}\n
customDetails:
  User: TG_Username2
  CreatedDate: TG_CreatedDate
  Tags: TG_Tags
  ChatTitle: TG_ChatTitle
  Status: Status
  UpdatedDate: TG_UpdatedDate
  Message: TG_Message
  MappedSeverity: Severity
  URLs: TG_Urls
  Service: Service
  AlertID: AlertID
  ChatID: TG_ChatID

ARM