TLS Certificate Using Weak Cipher - Informational

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Id	1bdf3cba-6b85-4b88-ab1e-681bac20d41f
Rulename	TLS Certificate Using Weak Cipher - Informational
Description	TLS Certificate Using Weak Cipher
Severity	Informational
Tactics	CredentialAccess LateralMovement DefenseEvasion Persistence
Techniques	T1556 T1210 T1212
Required data connectors	HVPollingIDAzureFunctions
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CTM360/Analytic Rules/TLSCertificateUsingWeakCipherInformational.yaml
Version	1.0.3
Arm template	1bdf3cba-6b85-4b88-ab1e-681bac20d41f.json

KQL

HackerViewLog_Azure_1_CL | where severity_s == "low" | where progress_status_s == "New" | where status_s != "inactive"  | where issue_name_s == "TLS Certificate Using Weak Cipher"

YAML

suppressionEnabled: false
status: Available
queryFrequency: 5m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CTM360/Analytic Rules/TLSCertificateUsingWeakCipherInformational.yaml
eventGroupingSettings:
  aggregationKind: SingleAlert
incidentConfiguration:
  groupingConfiguration:
    lookbackDuration: PT5H
    reopenClosedIncident: false
    matchingMethod: AllEntities
    enabled: false
  createIncident: true
description: |
    'TLS Certificate Using Weak Cipher'
triggerOperator: gt
tactics:
- CredentialAccess
- LateralMovement
- DefenseEvasion
- Persistence
queryPeriod: 5m
triggerThreshold: 0
id: 1bdf3cba-6b85-4b88-ab1e-681bac20d41f
severity: Informational
requiredDataConnectors:
- connectorId: HVPollingIDAzureFunctions
  dataTypes:
  - HackerViewLog_Azure_1_CL
version: 1.0.3
query: HackerViewLog_Azure_1_CL | where severity_s == "low" | where progress_status_s == "New" | where status_s != "inactive"  | where issue_name_s == "TLS Certificate Using Weak Cipher"
entityMappings:
- fieldMappings:
  - identifier: Address
    columnName: meta_resolved_ip_s
  entityType: IP
- fieldMappings:
  - identifier: HostName
    columnName: meta_host_s
  entityType: Host
- fieldMappings:
  - identifier: Url
    columnName: hackerview_link_s
  entityType: URL
name: TLS Certificate Using Weak Cipher - Informational
suppressionDuration: 5h
relevantTechniques:
- T1556
- T1210
- T1212
kind: Scheduled

ARM