CiscoISE - Log files deleted
Id | 21d3be4c-6088-4e76-b6eb-d25479019cb9 |
Rulename | CiscoISE - Log files deleted |
Description | Detects log file deleting activity. |
Severity | Medium |
Tactics | DefenseEvasion |
Techniques | T1070.004 |
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/CiscoISELogsDeleted.yaml |
Version | 1.0.2 |
Arm template | 21d3be4c-6088-4e76-b6eb-d25479019cb9.json |
let lbtime = 5m;
CiscoISEEvent
| where TimeGenerated > ago(lbtime)
| where EventId in ('58015', '59101', '59102')
| project TimeGenerated, DvcHostname, DvcIpAddr, DstUserName
| extend HostCustomEntity = DvcHostname
| extend IPCustomEntity = DvcIpAddr
| extend AccountCustomEntity = DstUserName
status: Available
queryFrequency: 5m
description: |
'Detects log file deleting activity.'
severity: Medium
version: 1.0.2
relevantTechniques:
- T1070.004
name: CiscoISE - Log files deleted
triggerThreshold: 0
kind: Scheduled
query: |
let lbtime = 5m;
CiscoISEEvent
| where TimeGenerated > ago(lbtime)
| where EventId in ('58015', '59101', '59102')
| project TimeGenerated, DvcHostname, DvcIpAddr, DstUserName
| extend HostCustomEntity = DvcHostname
| extend IPCustomEntity = DvcIpAddr
| extend AccountCustomEntity = DstUserName
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cisco ISE/Analytic Rules/CiscoISELogsDeleted.yaml
requiredDataConnectors:
- connectorId: CiscoISE
dataTypes:
- Syslog
- connectorId: SyslogAma
datatypes:
- Syslog
tactics:
- DefenseEvasion
id: 21d3be4c-6088-4e76-b6eb-d25479019cb9
queryPeriod: 5m
entityMappings:
- fieldMappings:
- columnName: AccountCustomEntity
identifier: FullName
entityType: Account
- fieldMappings:
- columnName: IPCustomEntity
identifier: Address
entityType: IP
- fieldMappings:
- columnName: HostCustomEntity
identifier: FullName
entityType: Host
{
"$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/21d3be4c-6088-4e76-b6eb-d25479019cb9')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/21d3be4c-6088-4e76-b6eb-d25479019cb9')]",
"properties": {
"alertRuleTemplateName": "21d3be4c-6088-4e76-b6eb-d25479019cb9",
"customDetails": null,
"description": "'Detects log file deleting activity.'\n",
"displayName": "CiscoISE - Log files deleted",
"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/CiscoISELogsDeleted.yaml",
"query": "let lbtime = 5m;\nCiscoISEEvent\n| where TimeGenerated > ago(lbtime)\n| where EventId in ('58015', '59101', '59102')\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": [
"T1070.004"
],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"DefenseEvasion"
],
"techniques": [
"T1070"
],
"templateVersion": "1.0.2",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}