Update Restrict-MDEFileHash
This commit is contained in:
dicolanl
Родитель
3ed1abd43c
Коммит
afa08e1cb7
|
|
@ -1,360 +0,0 @@
|
|||
{
|
||||
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
|
||||
"contentVersion": "1.0.0.0",
|
||||
"metadata": {
|
||||
"comments": "This playbook will take FileHash entities and generate alert and block threat indicators for each file hash in MDATP for 90 days.",
|
||||
"author": "Nicholas DiCola"
|
||||
},
|
||||
"parameters": {
|
||||
"PlaybookName": {
|
||||
"defaultValue": "Restrict-MDATPFileHash",
|
||||
"type": "String"
|
||||
},
|
||||
"UserName": {
|
||||
"defaultValue": "<username>@<domain>",
|
||||
"type": "string"
|
||||
}
|
||||
},
|
||||
"variables": {
|
||||
"AzureSentinelConnectionName": "[concat('azuresentinel-', parameters('PlaybookName'))]"
|
||||
},
|
||||
"resources": [
|
||||
{
|
||||
"type": "Microsoft.Web/connections",
|
||||
"apiVersion": "2016-06-01",
|
||||
"name": "[variables('AzureSentinelConnectionName')]",
|
||||
"location": "[resourceGroup().location]",
|
||||
"properties": {
|
||||
"displayName": "[parameters('UserName')]",
|
||||
"customParameterValues": {
|
||||
},
|
||||
"api": {
|
||||
"id": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Web/locations/', resourceGroup().location, '/managedApis/azuresentinel')]"
|
||||
}
|
||||
}
|
||||
},
|
||||
{
|
||||
"type": "Microsoft.Logic/workflows",
|
||||
"apiVersion": "2017-07-01",
|
||||
"name": "[parameters('PlaybookName')]",
|
||||
"location": "[resourceGroup().location]",
|
||||
"tags": {
|
||||
"LogicAppsCategory": "security"
|
||||
},
|
||||
"dependsOn": [
|
||||
"[resourceId('Microsoft.Web/connections', variables('AzureSentinelConnectionName'))]"
|
||||
],
|
||||
"identity": {
|
||||
"type": "SystemAssigned"
|
||||
},
|
||||
"properties": {
|
||||
"state": "Enabled",
|
||||
"definition": {
|
||||
"$schema": "https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#",
|
||||
"actions": {
|
||||
"Alert_-_Get_incident": {
|
||||
"inputs": {
|
||||
"host": {
|
||||
"connection": {
|
||||
"name": "@parameters('$connections')['azuresentinel']['connectionId']"
|
||||
}
|
||||
},
|
||||
"method": "get",
|
||||
"path": "/Cases/@{encodeURIComponent(triggerBody()?['SystemAlertId'])}/@{encodeURIComponent(triggerBody()?['WorkspaceSubscriptionId'])}/@{encodeURIComponent(triggerBody()?['WorkspaceId'])}/@{encodeURIComponent(triggerBody()?['WorkspaceResourceGroup'])}"
|
||||
},
|
||||
"runAfter": {
|
||||
},
|
||||
"type": "ApiConnection"
|
||||
},
|
||||
"For_each": {
|
||||
"actions": {
|
||||
"Condition": {
|
||||
"actions": {
|
||||
"Switch": {
|
||||
"cases": {
|
||||
"Case": {
|
||||
"actions": {
|
||||
"HTTP": {
|
||||
"inputs": {
|
||||
"authentication": {
|
||||
"audience": "https://api.securitycenter.windows.com/",
|
||||
"type": "ManagedServiceIdentity"
|
||||
},
|
||||
"body": {
|
||||
"action": "AlertAndBlock",
|
||||
"application": "@{triggerBody()?['ProductName']}",
|
||||
"description": "@{body('Alert_-_Get_incident')?['properties']?['Title']}",
|
||||
"expirationTime": "@{addDays(triggerBody()?['TimeGenerated'], 90)}",
|
||||
"indicatorType": "FileSha1",
|
||||
"indicatorValue": "@{items('For_each')?['Value']}",
|
||||
"severity": "@{body('Alert_-_Get_incident')?['properties']?['Severity']}",
|
||||
"title": "@{guid()}"
|
||||
},
|
||||
"method": "POST",
|
||||
"uri": "https://api.securitycenter.windows.com/api/indicators"
|
||||
},
|
||||
"runAfter": {
|
||||
},
|
||||
"type": "Http"
|
||||
}
|
||||
},
|
||||
"case": "SHA1"
|
||||
},
|
||||
"Case_2": {
|
||||
"actions": {
|
||||
"HTTP_2": {
|
||||
"inputs": {
|
||||
"authentication": {
|
||||
"audience": "https://api.securitycenter.windows.com/",
|
||||
"type": "ManagedServiceIdentity"
|
||||
},
|
||||
"body": {
|
||||
"action": "AlertAndBlock",
|
||||
"application": "@{triggerBody()?['ProductName']}",
|
||||
"description": "@{body('Alert_-_Get_incident')?['properties']?['Title']}",
|
||||
"expirationTime": "@{addDays(triggerBody()?['TimeGenerated'], 90)}",
|
||||
"indicatorType": "FileSha256",
|
||||
"indicatorValue": "@{items('For_each')?['Value']}",
|
||||
"severity": "@{body('Alert_-_Get_incident')?['properties']?['Severity']}",
|
||||
"title": "@{guid()}"
|
||||
},
|
||||
"method": "POST",
|
||||
"uri": "https://api.securitycenter.windows.com/api/indicators"
|
||||
},
|
||||
"runAfter": {
|
||||
},
|
||||
"type": "Http"
|
||||
}
|
||||
},
|
||||
"case": "SHA256"
|
||||
}
|
||||
},
|
||||
"default": {
|
||||
"actions": {
|
||||
}
|
||||
},
|
||||
"expression": "@items('For_each')?['Algorithm']",
|
||||
"runAfter": {
|
||||
},
|
||||
"type": "Switch"
|
||||
}
|
||||
},
|
||||
"expression": {
|
||||
"and": [
|
||||
{
|
||||
"equals": [
|
||||
"@items('For_each')['Type']",
|
||||
"filehash"
|
||||
]
|
||||
}
|
||||
]
|
||||
},
|
||||
"runAfter": {
|
||||
},
|
||||
"type": "If"
|
||||
}
|
||||
},
|
||||
"foreach": "@body('Parse_JSON')",
|
||||
"runAfter": {
|
||||
"Parse_JSON": [
|
||||
"Succeeded"
|
||||
]
|
||||
},
|
||||
"type": "Foreach"
|
||||
},
|
||||
"Parse_JSON": {
|
||||
"inputs": {
|
||||
"content": "@triggerBody()?['Entities']",
|
||||
"schema": {
|
||||
"items": {
|
||||
"properties": {
|
||||
"$id": {
|
||||
"type": "string"
|
||||
},
|
||||
"AadUserId": {
|
||||
"type": "string"
|
||||
},
|
||||
"Account": {
|
||||
"properties": {
|
||||
"$ref": {
|
||||
"type": "string"
|
||||
}
|
||||
},
|
||||
"type": "object"
|
||||
},
|
||||
"Address": {
|
||||
"type": "string"
|
||||
},
|
||||
"Algorithm": {
|
||||
"type": "string"
|
||||
},
|
||||
"CommandLine": {
|
||||
"type": "string"
|
||||
},
|
||||
"CreatedTimeUtc": {
|
||||
"type": "string"
|
||||
},
|
||||
"CreationTimeUtc": {
|
||||
"type": "string"
|
||||
},
|
||||
"Directory": {
|
||||
"type": "string"
|
||||
},
|
||||
"DnsDomain": {
|
||||
"type": "string"
|
||||
},
|
||||
"ElevationToken": {
|
||||
"type": "string"
|
||||
},
|
||||
"FileHashes": {
|
||||
"items": {
|
||||
"properties": {
|
||||
"$ref": {
|
||||
"type": "string"
|
||||
}
|
||||
},
|
||||
"required": [
|
||||
"$ref"
|
||||
],
|
||||
"type": "object"
|
||||
},
|
||||
"type": "array"
|
||||
},
|
||||
"Host": {
|
||||
"properties": {
|
||||
"$ref": {
|
||||
"type": "string"
|
||||
}
|
||||
},
|
||||
"type": "object"
|
||||
},
|
||||
"HostName": {
|
||||
"type": "string"
|
||||
},
|
||||
"ImageFile": {
|
||||
"properties": {
|
||||
"$ref": {
|
||||
"type": "string"
|
||||
}
|
||||
},
|
||||
"type": "object"
|
||||
},
|
||||
"IsDomainJoined": {
|
||||
"type": "boolean"
|
||||
},
|
||||
"IsDownloaded": {
|
||||
"type": "boolean"
|
||||
},
|
||||
"IsPe": {
|
||||
"type": "boolean"
|
||||
},
|
||||
"IsValid": {
|
||||
"type": "boolean"
|
||||
},
|
||||
"LastAccessTimeUtc": {
|
||||
"type": "string"
|
||||
},
|
||||
"LastWriteTimeUtc": {
|
||||
"type": "string"
|
||||
},
|
||||
"MachineId": {
|
||||
"type": "string"
|
||||
},
|
||||
"MachineIdType": {
|
||||
"type": "integer"
|
||||
},
|
||||
"NTDomain": {
|
||||
"type": "string"
|
||||
},
|
||||
"Name": {
|
||||
"type": "string"
|
||||
},
|
||||
"ParentProcess": {
|
||||
"properties": {
|
||||
"$ref": {
|
||||
"type": "string"
|
||||
}
|
||||
},
|
||||
"type": "object"
|
||||
},
|
||||
"ProcessId": {
|
||||
"type": "string"
|
||||
},
|
||||
"Sid": {
|
||||
"type": "string"
|
||||
},
|
||||
"SizeInBytes": {
|
||||
"type": "integer"
|
||||
},
|
||||
"Type": {
|
||||
"type": "string"
|
||||
},
|
||||
"UPNSuffix": {
|
||||
"type": "string"
|
||||
},
|
||||
"Url": {
|
||||
"type": "string"
|
||||
},
|
||||
"Value": {
|
||||
"type": "string"
|
||||
}
|
||||
},
|
||||
"required": [
|
||||
"$id",
|
||||
"Type"
|
||||
],
|
||||
"type": "object"
|
||||
},
|
||||
"type": "array"
|
||||
}
|
||||
},
|
||||
"runAfter": {
|
||||
"Alert_-_Get_incident": [
|
||||
"Succeeded"
|
||||
]
|
||||
},
|
||||
"type": "ParseJson"
|
||||
}
|
||||
},
|
||||
"contentVersion": "1.0.0.0",
|
||||
"outputs": {
|
||||
},
|
||||
"parameters": {
|
||||
"$connections": {
|
||||
"defaultValue": {
|
||||
},
|
||||
"type": "Object"
|
||||
}
|
||||
},
|
||||
"triggers": {
|
||||
"When_a_response_to_an_Azure_Sentinel_alert_is_triggered": {
|
||||
"inputs": {
|
||||
"body": {
|
||||
"callback_url": "@{listCallbackUrl()}"
|
||||
},
|
||||
"host": {
|
||||
"connection": {
|
||||
"name": "@parameters('$connections')['azuresentinel']['connectionId']"
|
||||
}
|
||||
},
|
||||
"path": "/subscribe"
|
||||
},
|
||||
"type": "ApiConnectionWebhook"
|
||||
}
|
||||
}
|
||||
},
|
||||
"parameters": {
|
||||
"$connections": {
|
||||
"value": {
|
||||
"azuresentinel": {
|
||||
"connectionId": "[resourceId('Microsoft.Web/connections', variables('AzureSentinelConnectionName'))]",
|
||||
"connectionName": "[variables('AzureSentinelConnectionName')]",
|
||||
"id": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Web/locations/', resourceGroup().location, '/managedApis/azuresentinel')]"
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
]
|
||||
}
|
||||
|
|
@ -1,25 +0,0 @@
|
|||
# Restrict-MDATPFileHash
|
||||
author: Nicholas DiCola
|
||||
|
||||
This playbook will take FileHash entities and generate alert and block threat indicators for each file hash in MDATP for 90 days.
|
||||
|
||||
<a href="https://portal.azure.com/#create/Microsoft.Template/uri/https%3A%2F%2Fraw.githubusercontent.com%2FAzure%2FAzure-Sentinel%2Fmaster%2FPlaybooks%2FRestrict-MDATPFileHash%2Fazuredeploy.json" target="_blank">
|
||||
<img src="http://azuredeploy.net/deploybutton.png"/>
|
||||
</a>
|
||||
<a href="https://portal.azure.us/#create/Microsoft.Template/uri/https%3A%2F%2Fraw.githubusercontent.com%2FAzure%2FAzure-Sentinel%2Fmaster%2FPlaybooks%2FRestrict-MDATPFileHash%2Fazuredeploy.json" target="_blank">
|
||||
<img src="https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/1-CONTRIBUTION-GUIDE/images/deploytoazuregov.png"/>
|
||||
</a>
|
||||
|
||||
**Additional Post Install Notes:**
|
||||
|
||||
The Logic App creates and uses a Managed System Identity (MSI) to authenticate and authorize against api.securitycenter.windows.com to update threat indicators.
|
||||
|
||||
The MSI must be assigned API Permissions 'Ti.ReadWrite' to WindowsDefenderATP App. To assign use PowerShell and AzureAD Module. Run the following commands:
|
||||
|
||||
$msi = Get-AzureADServicePrincipal | ?{$_.DisplayName -ieq "Restrict-MDATPUrl"}
|
||||
$graph = Get-AzureADServicePrincipal -Filter "AppId eq 'fc780465-2017-40d4-a0c5-307022471b92'"
|
||||
$roles = $graph.AppRoles | ?{$_.Value -imatch "Ti.ReadWrite" }
|
||||
|
||||
Foreach ($role in $roles){
|
||||
New-AzureADServiceAppRoleAssignment -ObjectId $msi.ObjectId -PrincipalId $msi.ObjectId -Id $role.Id -ResourceId $graph.ObjectId
|
||||
}
|
||||
|
|
@ -0,0 +1,224 @@
|
|||
{
|
||||
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
|
||||
"contentVersion": "1.0.0.0",
|
||||
"metadata": {
|
||||
"comments": "This playbook will take FileHash entities and generate alert and block threat indicators for each file hash in MDE for 90 days.",
|
||||
"author": "Nicholas DiCola"
|
||||
},
|
||||
"parameters": {
|
||||
"PlaybookName": {
|
||||
"defaultValue": "Restrict-MDEFileHash",
|
||||
"type": "String"
|
||||
}
|
||||
},
|
||||
"variables": {
|
||||
"AzureSentinelConnectionName": "[concat('azuresentinel-', parameters('PlaybookName'))]"
|
||||
},
|
||||
"resources": [
|
||||
{
|
||||
"type": "Microsoft.Web/connections",
|
||||
"apiVersion": "2016-06-01",
|
||||
"name": "[variables('AzureSentinelConnectionName')]",
|
||||
"location": "[resourceGroup().location]",
|
||||
"kind": "V1",
|
||||
"properties": {
|
||||
"displayName": "[parameters('PlaybookName')]",
|
||||
"customParameterValues": {},
|
||||
"parameterValueType": "Alternative",
|
||||
"api": {
|
||||
"id": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Web/locations/', resourceGroup().location, '/managedApis/azuresentinel')]"
|
||||
}
|
||||
}
|
||||
},
|
||||
{
|
||||
"type": "Microsoft.Logic/workflows",
|
||||
"apiVersion": "2017-07-01",
|
||||
"name": "[parameters('PlaybookName')]",
|
||||
"location": "[resourceGroup().location]",
|
||||
"tags": {
|
||||
"LogicAppsCategory": "security"
|
||||
},
|
||||
"dependsOn": [
|
||||
"[resourceId('Microsoft.Web/connections', variables('AzureSentinelConnectionName'))]"
|
||||
],
|
||||
"identity": {
|
||||
"type": "SystemAssigned"
|
||||
},
|
||||
"properties": {
|
||||
"state": "Enabled",
|
||||
"definition": {
|
||||
"$schema": "https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#",
|
||||
"actions": {
|
||||
"Alert_-_Get_incident": {
|
||||
"inputs": {
|
||||
"host": {
|
||||
"connection": {
|
||||
"name": "@parameters('$connections')['azuresentinel']['connectionId']"
|
||||
}
|
||||
},
|
||||
"method": "get",
|
||||
"path": "/Incidents/subscriptions/@{encodeURIComponent(triggerBody()?['WorkspaceSubscriptionId'])}/resourceGroups/@{encodeURIComponent(triggerBody()?['WorkspaceResourceGroup'])}/workspaces/@{encodeURIComponent(triggerBody()?['WorkspaceId'])}/alerts/@{encodeURIComponent(triggerBody()?['SystemAlertId'])}"
|
||||
},
|
||||
"runAfter": {},
|
||||
"type": "ApiConnection"
|
||||
},
|
||||
"Entities_-_Get_FileHashes": {
|
||||
"inputs": {
|
||||
"body": "@triggerBody()?['Entities']",
|
||||
"host": {
|
||||
"connection": {
|
||||
"name": "@parameters('$connections')['azuresentinel']['connectionId']"
|
||||
}
|
||||
},
|
||||
"method": "post",
|
||||
"path": "/entities/filehash"
|
||||
},
|
||||
"runAfter": {
|
||||
"Alert_-_Get_incident": [
|
||||
"Succeeded"
|
||||
]
|
||||
},
|
||||
"type": "ApiConnection"
|
||||
},
|
||||
"For_each": {
|
||||
"actions": {
|
||||
"Add_comment_to_incident_(V3)": {
|
||||
"inputs": {
|
||||
"body": {
|
||||
"incidentArmId": "@body('Alert_-_Get_incident')?['id']",
|
||||
"message": "<p>@{items('For_each')?['Value']} was added to MDE Indicators with action: AlertandBlock via playbook.</p>"
|
||||
},
|
||||
"host": {
|
||||
"connection": {
|
||||
"name": "@parameters('$connections')['azuresentinel']['connectionId']"
|
||||
}
|
||||
},
|
||||
"method": "post",
|
||||
"path": "/Incidents/Comment"
|
||||
},
|
||||
"runAfter": {
|
||||
"Switch": [
|
||||
"Succeeded"
|
||||
]
|
||||
},
|
||||
"type": "ApiConnection"
|
||||
},
|
||||
"Switch": {
|
||||
"cases": {
|
||||
"Case": {
|
||||
"actions": {
|
||||
"HTTP": {
|
||||
"inputs": {
|
||||
"authentication": {
|
||||
"audience": "https://api.securitycenter.windows.com/",
|
||||
"type": "ManagedServiceIdentity"
|
||||
},
|
||||
"body": {
|
||||
"action": "AlertAndBlock",
|
||||
"application": "Azure Sentinel",
|
||||
"description": "@{body('Alert_-_Get_incident')?['properties']?['incidentNumber']}-@{body('Alert_-_Get_incident')?['properties']?['title']}",
|
||||
"expirationTime": "@{addDays(triggerBody()?['TimeGenerated'], 90)}",
|
||||
"indicatorType": "FileSha1",
|
||||
"indicatorValue": "@{items('For_each')?['Value']}",
|
||||
"severity": "@{body('Alert_-_Get_incident')?['properties']?['severity']}",
|
||||
"title": "@{guid()}"
|
||||
},
|
||||
"method": "POST",
|
||||
"uri": "https://api.securitycenter.windows.com/api/indicators"
|
||||
},
|
||||
"runAfter": {},
|
||||
"type": "Http"
|
||||
}
|
||||
},
|
||||
"case": "SHA1"
|
||||
},
|
||||
"Case_2": {
|
||||
"actions": {
|
||||
"HTTP_2": {
|
||||
"inputs": {
|
||||
"authentication": {
|
||||
"audience": "https://api.securitycenter.windows.com/",
|
||||
"type": "ManagedServiceIdentity"
|
||||
},
|
||||
"body": {
|
||||
"action": "AlertAndBlock",
|
||||
"application": "Azure Sentinel",
|
||||
"description": "@{body('Alert_-_Get_incident')?['properties']?['incidentNumber']}-@{body('Alert_-_Get_incident')?['properties']?['title']}",
|
||||
"expirationTime": "@{addDays(triggerBody()?['TimeGenerated'], 90)}",
|
||||
"indicatorType": "FileSha256",
|
||||
"indicatorValue": "@{items('For_each')?['Value']}",
|
||||
"severity": "@{body('Alert_-_Get_incident')?['properties']?['severity']}",
|
||||
"title": "@{guid()}"
|
||||
},
|
||||
"method": "POST",
|
||||
"uri": "https://api.securitycenter.windows.com/api/indicators"
|
||||
},
|
||||
"runAfter": {},
|
||||
"type": "Http"
|
||||
}
|
||||
},
|
||||
"case": "SHA256"
|
||||
}
|
||||
},
|
||||
"default": {
|
||||
"actions": {}
|
||||
},
|
||||
"expression": "@items('For_each')?['Algorithm']",
|
||||
"runAfter": {},
|
||||
"type": "Switch"
|
||||
}
|
||||
},
|
||||
"foreach": "@body('Entities_-_Get_FileHashes')?['Filehashes']",
|
||||
"runAfter": {
|
||||
"Entities_-_Get_FileHashes": [
|
||||
"Succeeded"
|
||||
]
|
||||
},
|
||||
"type": "Foreach"
|
||||
}
|
||||
},
|
||||
"contentVersion": "1.0.0.0",
|
||||
"outputs": {},
|
||||
"parameters": {
|
||||
"$connections": {
|
||||
"defaultValue": {},
|
||||
"type": "Object"
|
||||
}
|
||||
},
|
||||
"triggers": {
|
||||
"When_a_response_to_an_Azure_Sentinel_alert_is_triggered": {
|
||||
"inputs": {
|
||||
"body": {
|
||||
"callback_url": "@{listCallbackUrl()}"
|
||||
},
|
||||
"host": {
|
||||
"connection": {
|
||||
"name": "@parameters('$connections')['azuresentinel']['connectionId']"
|
||||
}
|
||||
},
|
||||
"path": "/subscribe"
|
||||
},
|
||||
"type": "ApiConnectionWebhook"
|
||||
}
|
||||
}
|
||||
},
|
||||
"parameters": {
|
||||
"$connections": {
|
||||
"value": {
|
||||
"azuresentinel": {
|
||||
"connectionId": "[resourceId('Microsoft.Web/connections', variables('AzureSentinelConnectionName'))]",
|
||||
"connectionName": "[variables('AzureSentinelConnectionName')]",
|
||||
"id": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Web/locations/', resourceGroup().location, '/managedApis/azuresentinel')]",
|
||||
"connectionProperties": {
|
||||
"authentication": {
|
||||
"type": "ManagedServiceIdentity"
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
]
|
||||
}
|
||||
Двоичные данные
Playbooks/Restrict-MDEFileHash/alert-trigger/images/Restrict-MDEFileHash_alert.png
Normal file
Двоичные данные
Playbooks/Restrict-MDEFileHash/alert-trigger/images/Restrict-MDEFileHash_alert.png
Normal file
Двоичный файл не отображается.
|
После Ширина: | Высота: | Размер: 44 KiB |
|
|
@ -0,0 +1,217 @@
|
|||
{
|
||||
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
|
||||
"contentVersion": "1.0.0.0",
|
||||
"metadata": {
|
||||
"title": "Restrict-MDEFileHash",
|
||||
"description": "This playbook will take FileHash entities and generate alert and block threat indicators for each file hash in MDE for 90 days.",
|
||||
"prerequisites": "You will need to grant Ti.ReadWrite permissions to the managed identity.",
|
||||
"lastUpdateTime": "2021-06-10T00:00:00.000Z",
|
||||
"entities": [ "FileHash" ],
|
||||
"tags": [ "Remediation" ],
|
||||
"support": {
|
||||
"kind": "Community"
|
||||
},
|
||||
"author": {
|
||||
"name": "Nicholas DiCola"
|
||||
}
|
||||
},
|
||||
"parameters": {
|
||||
"PlaybookName": {
|
||||
"defaultValue": "Restrict-MDEFileHash",
|
||||
"type": "String"
|
||||
}
|
||||
},
|
||||
"variables": {
|
||||
"AzureSentinelConnectionName": "[concat('azuresentinel-', parameters('PlaybookName'))]"
|
||||
},
|
||||
"resources": [
|
||||
{
|
||||
"type": "Microsoft.Web/connections",
|
||||
"apiVersion": "2016-06-01",
|
||||
"name": "[variables('AzureSentinelConnectionName')]",
|
||||
"location": "[resourceGroup().location]",
|
||||
"kind": "V1",
|
||||
"properties": {
|
||||
"displayName": "[parameters('PlaybookName')]",
|
||||
"customParameterValues": {},
|
||||
"parameterValueType": "Alternative",
|
||||
"api": {
|
||||
"id": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Web/locations/', resourceGroup().location, '/managedApis/azuresentinel')]"
|
||||
}
|
||||
}
|
||||
},
|
||||
{
|
||||
"type": "Microsoft.Logic/workflows",
|
||||
"apiVersion": "2017-07-01",
|
||||
"name": "[parameters('PlaybookName')]",
|
||||
"location": "[resourceGroup().location]",
|
||||
"tags": {
|
||||
"LogicAppsCategory": "security"
|
||||
},
|
||||
"dependsOn": [
|
||||
"[resourceId('Microsoft.Web/connections', variables('AzureSentinelConnectionName'))]"
|
||||
],
|
||||
"identity": {
|
||||
"type": "SystemAssigned"
|
||||
},
|
||||
"properties": {
|
||||
"state": "Enabled",
|
||||
"definition": {
|
||||
"$schema": "https://schema.management.azure.com/providers/Microsoft.Logic/schemas/2016-06-01/workflowdefinition.json#",
|
||||
"actions": {
|
||||
"Entities_-_Get_FileHashes": {
|
||||
"inputs": {
|
||||
"body": "@triggerBody()?['object']?['properties']?['relatedEntities']",
|
||||
"host": {
|
||||
"connection": {
|
||||
"name": "@parameters('$connections')['azuresentinel']['connectionId']"
|
||||
}
|
||||
},
|
||||
"method": "post",
|
||||
"path": "/entities/filehash"
|
||||
},
|
||||
"runAfter": {},
|
||||
"type": "ApiConnection"
|
||||
},
|
||||
"For_each": {
|
||||
"actions": {
|
||||
"Add_comment_to_incident_(V3)": {
|
||||
"inputs": {
|
||||
"body": {
|
||||
"incidentArmId": "@triggerBody()?['object']?['id']",
|
||||
"message": "<p>@{items('For_each')?['Value']} was added to MDE Indicators with action: AlertandBlock via playbook.</p>"
|
||||
},
|
||||
"host": {
|
||||
"connection": {
|
||||
"name": "@parameters('$connections')['azuresentinel']['connectionId']"
|
||||
}
|
||||
},
|
||||
"method": "post",
|
||||
"path": "/Incidents/Comment"
|
||||
},
|
||||
"runAfter": {
|
||||
"Switch": [
|
||||
"Succeeded"
|
||||
]
|
||||
},
|
||||
"type": "ApiConnection"
|
||||
},
|
||||
"Switch": {
|
||||
"cases": {
|
||||
"Case": {
|
||||
"actions": {
|
||||
"HTTP": {
|
||||
"inputs": {
|
||||
"authentication": {
|
||||
"audience": "https://api.securitycenter.windows.com/",
|
||||
"type": "ManagedServiceIdentity"
|
||||
},
|
||||
"body": {
|
||||
"action": "AlertAndBlock",
|
||||
"application": "Azure Sentinel",
|
||||
"description": "@{triggerBody()?['object']?['properties']?['incidentNumber']}-@{triggerBody()?['object']?['properties']?['title']}",
|
||||
"expirationTime": "@{addDays(triggerBody()?['TimeGenerated'], 90)}",
|
||||
"indicatorType": "FileSha1",
|
||||
"indicatorValue": "@{items('For_each')?['Value']}",
|
||||
"severity": "@{triggerBody()?['object']?['properties']?['severity']}",
|
||||
"title": "@{guid()}"
|
||||
},
|
||||
"method": "POST",
|
||||
"uri": "https://api.securitycenter.windows.com/api/indicators"
|
||||
},
|
||||
"runAfter": {},
|
||||
"type": "Http"
|
||||
}
|
||||
},
|
||||
"case": "SHA1"
|
||||
},
|
||||
"Case_2": {
|
||||
"actions": {
|
||||
"HTTP_2": {
|
||||
"inputs": {
|
||||
"authentication": {
|
||||
"audience": "https://api.securitycenter.windows.com/",
|
||||
"type": "ManagedServiceIdentity"
|
||||
},
|
||||
"body": {
|
||||
"action": "AlertAndBlock",
|
||||
"application": "Azure Sentinel",
|
||||
"description": "@{triggerBody()?['object']?['properties']?['incidentNumber']}-@{triggerBody()?['object']?['properties']?['title']}",
|
||||
"expirationTime": "@{addDays(triggerBody()?['TimeGenerated'], 90)}",
|
||||
"indicatorType": "FileSha256",
|
||||
"indicatorValue": "@{items('For_each')?['Value']}",
|
||||
"severity": "@{triggerBody()?['object']?['properties']?['severity']}",
|
||||
"title": "@{guid()}"
|
||||
},
|
||||
"method": "POST",
|
||||
"uri": "https://api.securitycenter.windows.com/api/indicators"
|
||||
},
|
||||
"runAfter": {},
|
||||
"type": "Http"
|
||||
}
|
||||
},
|
||||
"case": "SHA256"
|
||||
}
|
||||
},
|
||||
"default": {
|
||||
"actions": {}
|
||||
},
|
||||
"expression": "@items('For_each')?['Algorithm']",
|
||||
"runAfter": {},
|
||||
"type": "Switch"
|
||||
}
|
||||
},
|
||||
"foreach": "@body('Entities_-_Get_FileHashes')?['Filehashes']",
|
||||
"runAfter": {
|
||||
"Entities_-_Get_FileHashes": [
|
||||
"Succeeded"
|
||||
]
|
||||
},
|
||||
"type": "Foreach"
|
||||
}
|
||||
},
|
||||
"contentVersion": "1.0.0.0",
|
||||
"outputs": {},
|
||||
"parameters": {
|
||||
"$connections": {
|
||||
"defaultValue": {},
|
||||
"type": "Object"
|
||||
}
|
||||
},
|
||||
"triggers": {
|
||||
"When_Azure_Sentinel_incident_creation_rule_was_triggered": {
|
||||
"inputs": {
|
||||
"body": {
|
||||
"callback_url": "@{listCallbackUrl()}"
|
||||
},
|
||||
"host": {
|
||||
"connection": {
|
||||
"name": "@parameters('$connections')['azuresentinel']['connectionId']"
|
||||
}
|
||||
},
|
||||
"path": "/incident-creation"
|
||||
},
|
||||
"type": "ApiConnectionWebhook"
|
||||
}
|
||||
}
|
||||
},
|
||||
"parameters": {
|
||||
"$connections": {
|
||||
"value": {
|
||||
"azuresentinel": {
|
||||
"connectionId": "[resourceId('Microsoft.Web/connections', variables('AzureSentinelConnectionName'))]",
|
||||
"connectionName": "[variables('AzureSentinelConnectionName')]",
|
||||
"id": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Web/locations/', resourceGroup().location, '/managedApis/azuresentinel')]",
|
||||
"connectionProperties": {
|
||||
"authentication": {
|
||||
"type": "ManagedServiceIdentity"
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
]
|
||||
}
|
||||
Двоичные данные
Playbooks/Restrict-MDEFileHash/incident-trigger/images/Restrict-MDEFileHash_incident.png
Normal file
Двоичные данные
Playbooks/Restrict-MDEFileHash/incident-trigger/images/Restrict-MDEFileHash_incident.png
Normal file
Двоичный файл не отображается.
|
После Ширина: | Высота: | Размер: 36 KiB |
Двоичный файл не отображается.
|
После Ширина: | Высота: | Размер: 37 KiB |
Двоичные данные
Playbooks/Restrict-MDEFileHash/incident-trigger/images/designerLight.png
Normal file
Двоичные данные
Playbooks/Restrict-MDEFileHash/incident-trigger/images/designerLight.png
Normal file
Двоичный файл не отображается.
|
После Ширина: | Высота: | Размер: 36 KiB |
|
|
@ -0,0 +1,51 @@
|
|||
# Restrict-MDEFileHash
|
||||
author: Nicholas DiCola
|
||||
|
||||
This playbook will take FileHash entities and generate alert and block threat indicators for each file hash in MDE for 90 days.
|
||||
|
||||
## Quick Deployment
|
||||
**Deploy with incident trigger** (recommended)
|
||||
|
||||
After deployment, attach this playbook to an **automation rule** so it runs when the incident is created.
|
||||
|
||||
[Learn more about automation rules](https://docs.microsoft.com/azure/sentinel/automate-incident-handling-with-automation-rules#creating-and-managing-automation-rules)
|
||||
|
||||
<a href="https://portal.azure.com/#create/Microsoft.Template/uri/https%3A%2F%2Fraw.githubusercontent.com%2FAzure%2FAzure-Sentinel%2Fmaster%2FPlaybooks%2FRestrict-MDEFileHash%2Fincident-trigger%2Fazuredeploy.json" target="_blank">
|
||||
<img src="https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/1-CONTRIBUTION-GUIDE/images/deploytoazure.png"/>
|
||||
</a>
|
||||
<a href="https://portal.azure.us/#create/Microsoft.Template/uri/https%3A%2F%2Fraw.githubusercontent.com%2FAzure%2FAzure-Sentinel%2Fmaster%2FPlaybooks%2FRestrict-MDEFileHash%2Fincident-trigger%2Fazuredeploy.json" target="_blank">
|
||||
<img src="https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/1-CONTRIBUTION-GUIDE/images/deploytoazuregov.png"/>
|
||||
</a>
|
||||
|
||||
**Deploy with alert trigger**
|
||||
|
||||
After deployment, you can run this playbook manually on an alert or attach it to an **analytics rule** so it will rune when an alert is created.
|
||||
|
||||
<a href="https://portal.azure.com/#create/Microsoft.Template/uri/https%3A%2F%2Fraw.githubusercontent.com%2FAzure%2FAzure-Sentinel%2Fmaster%2FPlaybooks%2FRestrict-MDEFileHash%2Falert-trigger%2Fazuredeploy.json" target="_blank">
|
||||
<img src="https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/1-CONTRIBUTION-GUIDE/images/deploytoazure.png"/>
|
||||
</a>
|
||||
<a href="https://portal.azure.us/#create/Microsoft.Template/uri/https%3A%2F%2Fraw.githubusercontent.com%2FAzure%2FAzure-Sentinel%2Fmaster%2FPlaybooks%2FRestrict-MDEFileHash%2Falert-trigger%2Fazuredeploy.json" target="_blank">
|
||||
<img src="https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/1-CONTRIBUTION-GUIDE/images/deploytoazuregov.png"/>
|
||||
</a>
|
||||
|
||||
## Prerequisites
|
||||
- **For Gov Only** You will need to update the HTTP action URL to the correct URL documented [here](https://docs.microsoft.com/microsoft-365/security/defender-endpoint/gov?view=o365-worldwide#api)
|
||||
- You will need to grant Ti.ReadWrite permissions to the managed identity. Run the following code replacing the managed identity object id. You find the managed identity object id on the Identity blade under Settings for the Logic App.
|
||||
```powershell
|
||||
$MIGuid = "<Enter your managed identity guid here>"
|
||||
$MI = Get-AzureADServicePrincipal -ObjectId $MIGuid
|
||||
|
||||
$MDEAppId = "fc780465-2017-40d4-a0c5-307022471b92"
|
||||
$PermissionName = "Ti.ReadWrite"
|
||||
|
||||
$MDEServicePrincipal = Get-AzureADServicePrincipal -Filter "appId eq '$MDEAppId'"
|
||||
$AppRole = $MDEServicePrincipal.AppRoles | Where-Object {$_.Value -eq $PermissionName -and $_.AllowedMemberTypes -contains "Application"}
|
||||
New-AzureAdServiceAppRoleAssignment -ObjectId $MI.ObjectId -PrincipalId $MI.ObjectId `
|
||||
-ResourceId $MDEServicePrincipal.ObjectId -Id $AppRole.Id
|
||||
```
|
||||
|
||||
## Screenshots
|
||||
**Incident Trigger**<br>
|
||||
<br>
|
||||
**Alert Trigger**<br>
|
||||
<br>
|
||||
Загрузка…
Ссылка в новой задаче