Brute force attack against user credentials
Id | 5a6ce089-e756-40fb-b022-c8e8864a973a |
Rulename | Brute force attack against user credentials |
Description | Identifies evidence of brute force activity against a user based on multiple authentication failures and at least one successful authentication within a given time window. This query limits IPAddresses to 100 and may not potentially cover all IPAddresses The default failure threshold is 10, success threshold is 1, and the default time window is 20 minutes. |
Severity | Medium |
Tactics | CredentialAccess |
Techniques | T1110 |
Required data connectors | SalesforceServiceCloud |
Kind | Scheduled |
Query frequency | 20m |
Query period | 20m |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Salesforce Service Cloud/Analytic Rules/Salesforce-BruteForce.yaml |
Version | 1.0.1 |
Arm template | 5a6ce089-e756-40fb-b022-c8e8864a973a.json |
let failureCountThreshold = 10;
let successCountThreshold = 1;
let Failures =
SalesforceServiceCloud
| where EventType == "Login" and LoginStatus != "LOGIN_NO_ERROR"
| summarize
FailureStartTime = min(TimeGenerated),
FailureEndTime = max(TimeGenerated),
IpAddresses = make_set (ClientIp, 100),
FailureCount = count() by User, UserId, UserType;
SalesforceServiceCloud
| where EventType == "Login" and LoginStatus == "LOGIN_NO_ERROR"
| summarize
SuccessStartTime = min(TimeGenerated),
SuccessEndTime = max(TimeGenerated),
IpAddresses = make_set (ClientIp, 100),
SuccessCount = count() by User, UserId, UserType
| join kind=leftouter Failures on UserId
| where FailureCount >= failureCountThreshold and SuccessCount >= successCountThreshold
| where FailureEndTime < SuccessStartTime
| project User, EventStartTime = FailureStartTime, EventEndTime = SuccessEndTime, IpAddresses
requiredDataConnectors:
- connectorId: SalesforceServiceCloud
dataTypes:
- SalesforceServiceCloud
triggerOperator: gt
queryFrequency: 20m
name: Brute force attack against user credentials
status: Available
queryPeriod: 20m
id: 5a6ce089-e756-40fb-b022-c8e8864a973a
description: |
'Identifies evidence of brute force activity against a user based on multiple authentication failures
and at least one successful authentication within a given time window. This query limits IPAddresses to 100 and may not potentially cover all IPAddresses
The default failure threshold is 10, success threshold is 1, and the default time window is 20 minutes.'
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Salesforce Service Cloud/Analytic Rules/Salesforce-BruteForce.yaml
query: |
let failureCountThreshold = 10;
let successCountThreshold = 1;
let Failures =
SalesforceServiceCloud
| where EventType == "Login" and LoginStatus != "LOGIN_NO_ERROR"
| summarize
FailureStartTime = min(TimeGenerated),
FailureEndTime = max(TimeGenerated),
IpAddresses = make_set (ClientIp, 100),
FailureCount = count() by User, UserId, UserType;
SalesforceServiceCloud
| where EventType == "Login" and LoginStatus == "LOGIN_NO_ERROR"
| summarize
SuccessStartTime = min(TimeGenerated),
SuccessEndTime = max(TimeGenerated),
IpAddresses = make_set (ClientIp, 100),
SuccessCount = count() by User, UserId, UserType
| join kind=leftouter Failures on UserId
| where FailureCount >= failureCountThreshold and SuccessCount >= successCountThreshold
| where FailureEndTime < SuccessStartTime
| project User, EventStartTime = FailureStartTime, EventEndTime = SuccessEndTime, IpAddresses
version: 1.0.1
kind: Scheduled
customDetails:
IPAddresses: IpAddresses
EventStartTime: FailureStartTime
EventEndTime: SuccessEndTime
entityMappings:
- entityType: Account
fieldMappings:
- identifier: FullName
columnName: User
relevantTechniques:
- T1110
tactics:
- CredentialAccess
triggerThreshold: 0
{
"$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/5a6ce089-e756-40fb-b022-c8e8864a973a')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/5a6ce089-e756-40fb-b022-c8e8864a973a')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "Brute force attack against user credentials",
"description": "'Identifies evidence of brute force activity against a user based on multiple authentication failures \nand at least one successful authentication within a given time window. This query limits IPAddresses to 100 and may not potentially cover all IPAddresses\nThe default failure threshold is 10, success threshold is 1, and the default time window is 20 minutes.'\n",
"severity": "Medium",
"enabled": true,
"query": "let failureCountThreshold = 10;\nlet successCountThreshold = 1;\nlet Failures =\nSalesforceServiceCloud\n| where EventType == \"Login\" and LoginStatus != \"LOGIN_NO_ERROR\"\n| summarize\n FailureStartTime = min(TimeGenerated),\n FailureEndTime = max(TimeGenerated),\n IpAddresses = make_set (ClientIp, 100),\n FailureCount = count() by User, UserId, UserType;\n SalesforceServiceCloud\n | where EventType == \"Login\" and LoginStatus == \"LOGIN_NO_ERROR\"\n | summarize\n SuccessStartTime = min(TimeGenerated),\n SuccessEndTime = max(TimeGenerated),\n IpAddresses = make_set (ClientIp, 100),\n SuccessCount = count() by User, UserId, UserType\n | join kind=leftouter Failures on UserId\n | where FailureCount >= failureCountThreshold and SuccessCount >= successCountThreshold\n | where FailureEndTime < SuccessStartTime\n | project User, EventStartTime = FailureStartTime, EventEndTime = SuccessEndTime, IpAddresses\n",
"queryFrequency": "PT20M",
"queryPeriod": "PT20M",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"CredentialAccess"
],
"techniques": [
"T1110"
],
"alertRuleTemplateName": "5a6ce089-e756-40fb-b022-c8e8864a973a",
"customDetails": {
"EventStartTime": "FailureStartTime",
"IPAddresses": "IpAddresses",
"EventEndTime": "SuccessEndTime"
},
"entityMappings": [
{
"fieldMappings": [
{
"identifier": "FullName",
"columnName": "User"
}
],
"entityType": "Account"
}
],
"templateVersion": "1.0.1",
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Salesforce Service Cloud/Analytic Rules/Salesforce-BruteForce.yaml",
"status": "Available"
}
}
]
}