Malware attachment delivered
Id | 0558155e-4556-447e-9a22-828f2a7de06b |
Rulename | Malware attachment delivered |
Description | This query identifies a message containing a malware attachment that was delivered. |
Severity | Medium |
Tactics | InitialAccess |
Techniques | T1566.001 |
Required data connectors | ProofpointTAP |
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/ProofPointTap/Analytic Rules/MalwareAttachmentDelivered.yaml |
Version | 1.0.3 |
Arm template | 0558155e-4556-447e-9a22-828f2a7de06b.json |
ProofPointTAPMessagesDelivered_CL
| mv-expand todynamic(threatsInfoMap_s)
| mv-expand todynamic(messageParts_s)
| extend threatType = tostring(threatsInfoMap_s.threatType), classification = tostring(threatsInfoMap_s.classification)
| extend filename = tostring(messageParts_s.filename)
| where threatType =~ "attachment" and classification =~ "malware"
| summarize filenames = make_set(filename), StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), count() by TimeGenerated, Sender = sender_s, SenderIPAddress = senderIP_s, Recipient = recipient_s, threatType, classification, Subject = subject_s
| extend timestamp = StartTime, AccountCustomEntity = Recipient, IPCustomEntity = SenderIPAddress
severity: Medium
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ProofPointTap/Analytic Rules/MalwareAttachmentDelivered.yaml
description: |
'This query identifies a message containing a malware attachment that was delivered.'
triggerOperator: gt
queryPeriod: 1h
requiredDataConnectors:
- dataTypes:
- ProofPointTAPMessagesDelivered_CL
connectorId: ProofpointTAP
queryFrequency: 1h
triggerThreshold: 0
tactics:
- InitialAccess
query: |
ProofPointTAPMessagesDelivered_CL
| mv-expand todynamic(threatsInfoMap_s)
| mv-expand todynamic(messageParts_s)
| extend threatType = tostring(threatsInfoMap_s.threatType), classification = tostring(threatsInfoMap_s.classification)
| extend filename = tostring(messageParts_s.filename)
| where threatType =~ "attachment" and classification =~ "malware"
| summarize filenames = make_set(filename), StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), count() by TimeGenerated, Sender = sender_s, SenderIPAddress = senderIP_s, Recipient = recipient_s, threatType, classification, Subject = subject_s
| extend timestamp = StartTime, AccountCustomEntity = Recipient, IPCustomEntity = SenderIPAddress
status: Available
kind: Scheduled
relevantTechniques:
- T1566.001
version: 1.0.3
id: 0558155e-4556-447e-9a22-828f2a7de06b
entityMappings:
- fieldMappings:
- columnName: AccountCustomEntity
identifier: FullName
entityType: Account
- fieldMappings:
- columnName: IPCustomEntity
identifier: Address
entityType: IP
name: Malware attachment delivered
{
"$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/0558155e-4556-447e-9a22-828f2a7de06b')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/0558155e-4556-447e-9a22-828f2a7de06b')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "Malware attachment delivered",
"description": "'This query identifies a message containing a malware attachment that was delivered.'\n",
"severity": "Medium",
"enabled": true,
"query": "ProofPointTAPMessagesDelivered_CL\n| mv-expand todynamic(threatsInfoMap_s)\n| mv-expand todynamic(messageParts_s)\n| extend threatType = tostring(threatsInfoMap_s.threatType), classification = tostring(threatsInfoMap_s.classification)\n| extend filename = tostring(messageParts_s.filename)\n| where threatType =~ \"attachment\" and classification =~ \"malware\"\n| summarize filenames = make_set(filename), StartTime = min(TimeGenerated), EndTime = max(TimeGenerated), count() by TimeGenerated, Sender = sender_s, SenderIPAddress = senderIP_s, Recipient = recipient_s, threatType, classification, Subject = subject_s\n| extend timestamp = StartTime, AccountCustomEntity = Recipient, IPCustomEntity = SenderIPAddress\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"InitialAccess"
],
"techniques": [
"T1566.001"
],
"alertRuleTemplateName": "0558155e-4556-447e-9a22-828f2a7de06b",
"customDetails": null,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "AccountCustomEntity",
"identifier": "FullName"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "IPCustomEntity",
"identifier": "Address"
}
]
}
],
"status": "Available",
"templateVersion": "1.0.3",
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/ProofPointTap/Analytic Rules/MalwareAttachmentDelivered.yaml"
}
}
]
}