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

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

ARM