CiscoISE - Attempt to delete local store logs

Back


Id	b6549a28-d61c-476e-b350-4404352ee427
Rulename	CiscoISE - Attempt to delete local store logs
Description	Detects when attempt to delete local store logs failed.
Severity	Medium
Tactics	DefenseEvasion
Techniques	T1070
Required data connectors	CiscoISE SyslogAma
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/Cisco ISE/Analytic Rules/CiscoISEAttempDeleteLocalStoreLogs.yaml
Version	1.0.2
Arm template	b6549a28-d61c-476e-b350-4404352ee427.json

KQL

let lbtime = 5m;
CiscoISEEvent
| where TimeGenerated > ago(lbtime)
| where EventId == '59103'
| project TimeGenerated, DvcHostname, DvcIpAddr, DstUserName
| extend HostCustomEntity = DvcHostname
| extend IPCustomEntity = DvcIpAddr
| extend AccountCustomEntity = DstUserName

YAML

queryPeriod: 5m
requiredDataConnectors:
- connectorId: CiscoISE
  dataTypes:
  - Syslog
- connectorId: SyslogAma
  datatypes:
  - Syslog
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cisco ISE/Analytic Rules/CiscoISEAttempDeleteLocalStoreLogs.yaml
tactics:
- DefenseEvasion
triggerOperator: gt
severity: Medium
name: CiscoISE - Attempt to delete local store logs
relevantTechniques:
- T1070
query: |
  let lbtime = 5m;
  CiscoISEEvent
  | where TimeGenerated > ago(lbtime)
  | where EventId == '59103'
  | project TimeGenerated, DvcHostname, DvcIpAddr, DstUserName
  | extend HostCustomEntity = DvcHostname
  | extend IPCustomEntity = DvcIpAddr
  | extend AccountCustomEntity = DstUserName  
queryFrequency: 5m
id: b6549a28-d61c-476e-b350-4404352ee427
status: Available
kind: Scheduled
entityMappings:
- fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: HostCustomEntity
    identifier: FullName
  entityType: Host
version: 1.0.2
description: |
    'Detects when attempt to delete local store logs failed.'

ARM

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/b6549a28-d61c-476e-b350-4404352ee427')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/b6549a28-d61c-476e-b350-4404352ee427')]",
      "properties": {
        "alertRuleTemplateName": "b6549a28-d61c-476e-b350-4404352ee427",
        "customDetails": null,
        "description": "'Detects when attempt to delete local store logs failed.'\n",
        "displayName": "CiscoISE - Attempt to delete local store logs",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "HostCustomEntity",
                "identifier": "FullName"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cisco ISE/Analytic Rules/CiscoISEAttempDeleteLocalStoreLogs.yaml",
        "query": "let lbtime = 5m;\nCiscoISEEvent\n| where TimeGenerated > ago(lbtime)\n| where EventId == '59103'\n| project TimeGenerated, DvcHostname, DvcIpAddr, DstUserName\n| extend HostCustomEntity = DvcHostname\n| extend IPCustomEntity = DvcIpAddr\n| extend AccountCustomEntity = DstUserName\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "Medium",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "DefenseEvasion"
        ],
        "techniques": [
          "T1070"
        ],
        "templateVersion": "1.0.2",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}