TLS Certificate Using Weak Cipher - Medium

Back


Id	7bbe51fe-9c5f-4f54-a079-b84cc27737a1
Rulename	TLS Certificate Using Weak Cipher - Medium
Description	TLS Certificate Using Weak Cipher
Severity	Medium
Tactics	CredentialAccess LateralMovement DefenseEvasion Persistence
Techniques	T1556 T1210 T1212
Required data connectors	HVPollingIDAzureFunctions
Kind	Scheduled
Query frequency	5h
Query period	5h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CTM360/Analytic Rules/TLSCertificateUsingWeakCipherMedium.yaml
Version	1.0.3
Arm template	7bbe51fe-9c5f-4f54-a079-b84cc27737a1.json

KQL

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

YAML

queryFrequency: 5h
suppressionEnabled: false
name: TLS Certificate Using Weak Cipher - Medium
entityMappings:
- fieldMappings:
  - columnName: meta_resolved_ip_s
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: hackerview_link_s
    identifier: Url
  entityType: URL
- fieldMappings:
  - columnName: meta_host_s
    identifier: HostName
  entityType: Host
kind: Scheduled
tactics:
- CredentialAccess
- LateralMovement
- DefenseEvasion
- Persistence
id: 7bbe51fe-9c5f-4f54-a079-b84cc27737a1
queryPeriod: 5h
relevantTechniques:
- T1556
- T1210
- T1212
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CTM360/Analytic Rules/TLSCertificateUsingWeakCipherMedium.yaml
triggerOperator: gt
triggerThreshold: 0
version: 1.0.3
requiredDataConnectors:
- dataTypes:
  - HackerViewLog_Azure_1_CL
  connectorId: HVPollingIDAzureFunctions
query: HackerViewLog_Azure_1_CL | where severity_s == "medium" | where progress_status_s == "New" | where status_s != "inactive"  | where issue_name_s == "TLS Certificate Using Weak Cipher"
status: Available
eventGroupingSettings:
  aggregationKind: SingleAlert
severity: Medium
incidentConfiguration:
  groupingConfiguration:
    matchingMethod: AllEntities
    enabled: false
    reopenClosedIncident: false
    lookbackDuration: PT5H
  createIncident: true
suppressionDuration: 5h
description: |
    'TLS Certificate Using Weak Cipher'

ARM