Microsoft Sentinel Analytic Rules
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Cisco WSA - Unexpected URL

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Id010644fd-2830-4451-9e0e-606cc192f2e7
RulenameCisco WSA - Unexpected URL
DescriptionDetects unexpected URL.
SeverityMedium
TacticsCommandAndControl
TechniquesT1102
Required data connectorsSyslogAma
KindScheduled
Query frequency1h
Query period1h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoWSA/Analytic Rules/CiscoWSAUnexpectedUrl.yaml
Version1.0.2
Arm template010644fd-2830-4451-9e0e-606cc192f2e7.json
Deploy To Azure
let threshold = 5;
CiscoWSAEvent
| where UrlOriginal matches regex @'\Ahttp(s)?[:][/][/]\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}'
| extend URLCustomEntity = UrlOriginal, AccountCustomEntity = SrcUserName
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoWSA/Analytic Rules/CiscoWSAUnexpectedUrl.yaml
query: |
  let threshold = 5;
  CiscoWSAEvent
  | where UrlOriginal matches regex @'\Ahttp(s)?[:][/][/]\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}'
  | extend URLCustomEntity = UrlOriginal, AccountCustomEntity = SrcUserName  
requiredDataConnectors:
- datatypes:
  - Syslog
  connectorId: SyslogAma
tactics:
- CommandAndControl
name: Cisco WSA - Unexpected URL
relevantTechniques:
- T1102
severity: Medium
entityMappings:
- fieldMappings:
  - identifier: Url
    columnName: URLCustomEntity
  entityType: URL
- fieldMappings:
  - identifier: Name
    columnName: AccountCustomEntity
  entityType: Account
kind: Scheduled
queryFrequency: 1h
description: |
    'Detects unexpected URL.'
triggerThreshold: 0
triggerOperator: gt
version: 1.0.2
queryPeriod: 1h
id: 010644fd-2830-4451-9e0e-606cc192f2e7