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

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

ARM