Mimecast Targeted Threat Protection - Attachment Protect
Id | aa75944c-a663-4901-969e-7b55bfa49a73 |
Rulename | Mimecast Targeted Threat Protection - Attachment Protect |
Description | Detects a threat for an unsafe attachment in an email |
Severity | High |
Tactics | InitialAccess Discovery |
Techniques | T0865 |
Required data connectors | MimecastTTPAPI |
Kind | Scheduled |
Query frequency | 5m |
Query period | 15m |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MimecastTTP/Analytic Rules/MimecastTTPAttachment.yaml |
Version | 1.0.0 |
Arm template | aa75944c-a663-4901-969e-7b55bfa49a73.json |
MimecastTTPAttachment_CL| where result_s <> "safe";
suppressionEnabled: false
relevantTechniques:
- T0865
alertRuleTemplateName:
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MimecastTTP/Analytic Rules/MimecastTTPAttachment.yaml
incidentConfiguration:
createIncident: true
groupingConfiguration:
matchingMethod: AllEntities
lookbackDuration: 1d
enabled: true
reopenClosedIncident: false
requiredDataConnectors:
- dataTypes:
- MimecastTTPAttachment_CL
connectorId: MimecastTTPAPI
id: aa75944c-a663-4901-969e-7b55bfa49a73
suppressionDuration: 5h
name: Mimecast Targeted Threat Protection - Attachment Protect
queryFrequency: 5m
eventGroupingSettings:
aggregationKind: AlertPerResult
triggerOperator: gt
tactics:
- InitialAccess
- Discovery
description: Detects a threat for an unsafe attachment in an email
triggerThreshold: 0
kind: Scheduled
severity: High
query: MimecastTTPAttachment_CL| where result_s <> "safe";
entityMappings:
- entityType: MailMessage
fieldMappings:
- columnName: senderAddress_s
identifier: Sender
- columnName: recipientAddress_s
identifier: Recipient
- columnName: subject_s
identifier: Subject
enabled: true
version: 1.0.0
customDetails:
fileName: fileName_s
fileHash: fileHash_s
fileType: fileType_s
details: details_s
queryPeriod: 15m
{
"$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/aa75944c-a663-4901-969e-7b55bfa49a73')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/aa75944c-a663-4901-969e-7b55bfa49a73')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "Mimecast Targeted Threat Protection - Attachment Protect",
"description": "Detects a threat for an unsafe attachment in an email",
"severity": "High",
"enabled": true,
"query": "MimecastTTPAttachment_CL| where result_s <> \"safe\";",
"queryFrequency": "PT5M",
"queryPeriod": "PT15M",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT5H",
"suppressionEnabled": false,
"tactics": [
"InitialAccess",
"Discovery"
],
"techniques": [
"T0865"
],
"alertRuleTemplateName": null,
"incidentConfiguration": {
"groupingConfiguration": {
"enabled": true,
"lookbackDuration": "P1D",
"matchingMethod": "AllEntities",
"reopenClosedIncident": false
},
"createIncident": true
},
"eventGroupingSettings": {
"aggregationKind": "AlertPerResult"
},
"customDetails": {
"details": "details_s",
"fileName": "fileName_s",
"fileType": "fileType_s",
"fileHash": "fileHash_s"
},
"entityMappings": [
{
"fieldMappings": [
{
"identifier": "Sender",
"columnName": "senderAddress_s"
},
{
"identifier": "Recipient",
"columnName": "recipientAddress_s"
},
{
"identifier": "Subject",
"columnName": "subject_s"
}
],
"entityType": "MailMessage"
}
],
"templateVersion": "1.0.0",
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MimecastTTP/Analytic Rules/MimecastTTPAttachment.yaml"
}
}
]
}