Dataverse - Malware found in SharePoint document management site
| Id | 2e3878bb-d519-43aa-9992-ea069df099e4 |
| Rulename | Dataverse - Malware found in SharePoint document management site |
| Description | This query identifies malware uploaded via Dynamics 365 document management or directly in SharePoint impacting Dataverse associated SharePoint sites. |
| Severity | Medium |
| Tactics | Execution |
| Techniques | T1204 |
| Required data connectors | Dataverse Office365 |
| Kind | Scheduled |
| Query frequency | 1h |
| Query period | 14d |
| Trigger threshold | 0 |
| Trigger operator | gt |
| Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Business Applications/Analytic Rules/Dataverse - Malware found in SharePoint document management site.yaml |
| Version | 3.2.0 |
| Arm template | 2e3878bb-d519-43aa-9992-ea069df099e4.json |
let query_frequency = 15m;
let malware_events = OfficeActivity
| where OfficeWorkload == "SharePoint" and Operation == "FileMalwareDetected"
| summarize by MalwareUserId = UserId, SourceFileName, Site_Url
| join kind=inner (DataverseSharePointSites) on $left.Site_Url == $right.SharePointUrl;
let file_upload_events = OfficeActivity
| where OfficeWorkload == "SharePoint" and Operation == "FileUploaded"
| project TimeGenerated, UserId, Site_Url, SourceFileName, ApplicationId, ClientIP;
let d365_upload_events = DataverseActivity
| where TimeGenerated >= ago(query_frequency)
| where Message == "UploadDocument"
| summarize by UserId, D365ClientIp = ClientIp;
malware_events
| join kind=inner (file_upload_events) on SourceFileName, Site_Url
| lookup (d365_upload_events) on UserId
| extend ClientIp = iif(ApplicationId == "00000007-0000-0000-c000-000000000000", D365ClientIp, ClientIP)
| extend
CloudAppId = int(32780),
SharePointId = int(20892),
AccountName = tostring(split(UserId, '@')[0]),
UPNSuffix = tostring(split(UserId, '@')[1])
| project
TimeGenerated,
UserId,
ClientIp,
InstanceUrl,
SharePointUrl,
SourceFileName,
CloudAppId,
SharePointId,
AccountName,
UPNSuffix
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Business Applications/Analytic Rules/Dataverse - Malware found in SharePoint document management site.yaml
query: |
let query_frequency = 15m;
let malware_events = OfficeActivity
| where OfficeWorkload == "SharePoint" and Operation == "FileMalwareDetected"
| summarize by MalwareUserId = UserId, SourceFileName, Site_Url
| join kind=inner (DataverseSharePointSites) on $left.Site_Url == $right.SharePointUrl;
let file_upload_events = OfficeActivity
| where OfficeWorkload == "SharePoint" and Operation == "FileUploaded"
| project TimeGenerated, UserId, Site_Url, SourceFileName, ApplicationId, ClientIP;
let d365_upload_events = DataverseActivity
| where TimeGenerated >= ago(query_frequency)
| where Message == "UploadDocument"
| summarize by UserId, D365ClientIp = ClientIp;
malware_events
| join kind=inner (file_upload_events) on SourceFileName, Site_Url
| lookup (d365_upload_events) on UserId
| extend ClientIp = iif(ApplicationId == "00000007-0000-0000-c000-000000000000", D365ClientIp, ClientIP)
| extend
CloudAppId = int(32780),
SharePointId = int(20892),
AccountName = tostring(split(UserId, '@')[0]),
UPNSuffix = tostring(split(UserId, '@')[1])
| project
TimeGenerated,
UserId,
ClientIp,
InstanceUrl,
SharePointUrl,
SourceFileName,
CloudAppId,
SharePointId,
AccountName,
UPNSuffix
description: This query identifies malware uploaded via Dynamics 365 document management or directly in SharePoint impacting Dataverse associated SharePoint sites.
severity: Medium
requiredDataConnectors:
- dataTypes:
- DataverseActivity
connectorId: Dataverse
- dataTypes:
- OfficeActivity (SharePoint)
connectorId: Office365
eventGroupingSettings:
aggregationKind: SingleAlert
name: Dataverse - Malware found in SharePoint document management site
triggerThreshold: 0
version: 3.2.0
entityMappings:
- entityType: Account
fieldMappings:
- columnName: AccountName
identifier: Name
- columnName: UPNSuffix
identifier: UPNSuffix
- entityType: IP
fieldMappings:
- columnName: ClientIp
identifier: Address
- entityType: File
fieldMappings:
- columnName: SourceFileName
identifier: Name
- entityType: CloudApplication
fieldMappings:
- columnName: CloudAppId
identifier: AppId
- columnName: InstanceUrl
identifier: InstanceName
- entityType: CloudApplication
fieldMappings:
- columnName: SharePointId
identifier: AppId
- columnName: SharePointUrl
identifier: InstanceName
tactics:
- Execution
alertDetailsOverride:
alertDescriptionFormat: A malicious file {{SourceFileName}} was found in SharePoint site {{SharePointUrl}}. The file was uploaded by {{UserId}}
alertDisplayNameFormat: 'Dataverse - Malware was found in SharePoint document management site for {{InstanceUrl}} '
relevantTechniques:
- T1204
triggerOperator: gt
kind: Scheduled
id: 2e3878bb-d519-43aa-9992-ea069df099e4
status: Available
queryFrequency: 1h
queryPeriod: 14d
{
"$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/2e3878bb-d519-43aa-9992-ea069df099e4')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/2e3878bb-d519-43aa-9992-ea069df099e4')]",
"properties": {
"alertDetailsOverride": {
"alertDescriptionFormat": "A malicious file {{SourceFileName}} was found in SharePoint site {{SharePointUrl}}. The file was uploaded by {{UserId}}",
"alertDisplayNameFormat": "Dataverse - Malware was found in SharePoint document management site for {{InstanceUrl}} "
},
"alertRuleTemplateName": "2e3878bb-d519-43aa-9992-ea069df099e4",
"customDetails": null,
"description": "This query identifies malware uploaded via Dynamics 365 document management or directly in SharePoint impacting Dataverse associated SharePoint sites.",
"displayName": "Dataverse - Malware found in SharePoint document management site",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "AccountName",
"identifier": "Name"
},
{
"columnName": "UPNSuffix",
"identifier": "UPNSuffix"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "ClientIp",
"identifier": "Address"
}
]
},
{
"entityType": "File",
"fieldMappings": [
{
"columnName": "SourceFileName",
"identifier": "Name"
}
]
},
{
"entityType": "CloudApplication",
"fieldMappings": [
{
"columnName": "CloudAppId",
"identifier": "AppId"
},
{
"columnName": "InstanceUrl",
"identifier": "InstanceName"
}
]
},
{
"entityType": "CloudApplication",
"fieldMappings": [
{
"columnName": "SharePointId",
"identifier": "AppId"
},
{
"columnName": "SharePointUrl",
"identifier": "InstanceName"
}
]
}
],
"eventGroupingSettings": {
"aggregationKind": "SingleAlert"
},
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Business Applications/Analytic Rules/Dataverse - Malware found in SharePoint document management site.yaml",
"query": "let query_frequency = 15m;\n let malware_events = OfficeActivity\n | where OfficeWorkload == \"SharePoint\" and Operation == \"FileMalwareDetected\"\n | summarize by MalwareUserId = UserId, SourceFileName, Site_Url\n | join kind=inner (DataverseSharePointSites) on $left.Site_Url == $right.SharePointUrl;\n let file_upload_events = OfficeActivity\n | where OfficeWorkload == \"SharePoint\" and Operation == \"FileUploaded\"\n | project TimeGenerated, UserId, Site_Url, SourceFileName, ApplicationId, ClientIP;\n let d365_upload_events = DataverseActivity\n | where TimeGenerated >= ago(query_frequency)\n | where Message == \"UploadDocument\"\n | summarize by UserId, D365ClientIp = ClientIp;\n malware_events\n | join kind=inner (file_upload_events) on SourceFileName, Site_Url\n | lookup (d365_upload_events) on UserId\n | extend ClientIp = iif(ApplicationId == \"00000007-0000-0000-c000-000000000000\", D365ClientIp, ClientIP)\n | extend\n CloudAppId = int(32780),\n SharePointId = int(20892),\n AccountName = tostring(split(UserId, '@')[0]),\n UPNSuffix = tostring(split(UserId, '@')[1])\n | project\n TimeGenerated,\n UserId,\n ClientIp,\n InstanceUrl,\n SharePointUrl,\n SourceFileName,\n CloudAppId,\n SharePointId,\n AccountName,\n UPNSuffix\n",
"queryFrequency": "PT1H",
"queryPeriod": "P14D",
"severity": "Medium",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Execution"
],
"techniques": [
"T1204"
],
"templateVersion": "3.2.0",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}