Oracle - Multiple client errors from single IP
Id | 41775080-5740-11ec-bf63-0242ac130002 |
Rulename | Oracle - Multiple client errors from single IP |
Description | Detects multiple client errors from one source in short timeframe |
Severity | Medium |
Tactics | InitialAccess |
Techniques | T1190 T1133 |
Required data connectors | OracleWebLogicServer |
Kind | Scheduled |
Query frequency | 1h |
Query period | 1h |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleWebLogicServer/Analytic Rules/OracleWebLogicMultipleClientErrorsFromSingleIP.yaml |
Version | 1.0.1 |
Arm template | 41775080-5740-11ec-bf63-0242ac130002.json |
let threshold = 100;
OracleWebLogicServerEvent
| where HttpStatusCode >= 400 and HttpStatusCode <= 499
| summarize MultipleClientErrors = count() by SrcIpAddr, bin(TimeGenerated, 5m)
| where MultipleClientErrors > threshold
| extend IPCustomEntity = SrcIpAddr
severity: Medium
triggerThreshold: 0
query: |
let threshold = 100;
OracleWebLogicServerEvent
| where HttpStatusCode >= 400 and HttpStatusCode <= 499
| summarize MultipleClientErrors = count() by SrcIpAddr, bin(TimeGenerated, 5m)
| where MultipleClientErrors > threshold
| extend IPCustomEntity = SrcIpAddr
queryFrequency: 1h
requiredDataConnectors:
- connectorId: OracleWebLogicServer
dataTypes:
- OracleWebLogicServerEvent
id: 41775080-5740-11ec-bf63-0242ac130002
version: 1.0.1
name: Oracle - Multiple client errors from single IP
kind: Scheduled
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleWebLogicServer/Analytic Rules/OracleWebLogicMultipleClientErrorsFromSingleIP.yaml
queryPeriod: 1h
relevantTechniques:
- T1190
- T1133
triggerOperator: gt
tactics:
- InitialAccess
description: |
'Detects multiple client errors from one source in short timeframe'
entityMappings:
- entityType: IP
fieldMappings:
- identifier: Address
columnName: IPCustomEntity
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/41775080-5740-11ec-bf63-0242ac130002')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/41775080-5740-11ec-bf63-0242ac130002')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01",
"properties": {
"displayName": "Oracle - Multiple client errors from single IP",
"description": "'Detects multiple client errors from one source in short timeframe'\n",
"severity": "Medium",
"enabled": true,
"query": "let threshold = 100;\nOracleWebLogicServerEvent\n| where HttpStatusCode >= 400 and HttpStatusCode <= 499 \n| summarize MultipleClientErrors = count() by SrcIpAddr, bin(TimeGenerated, 5m)\n| where MultipleClientErrors > threshold\n| extend IPCustomEntity = SrcIpAddr\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"InitialAccess"
],
"techniques": [
"T1190",
"T1133"
],
"alertRuleTemplateName": "41775080-5740-11ec-bf63-0242ac130002",
"customDetails": null,
"entityMappings": [
{
"fieldMappings": [
{
"columnName": "IPCustomEntity",
"identifier": "Address"
}
],
"entityType": "IP"
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleWebLogicServer/Analytic Rules/OracleWebLogicMultipleClientErrorsFromSingleIP.yaml",
"templateVersion": "1.0.1",
"status": "Available"
}
}
]
}