TI map IP entity to Cloud App Events
| Id | 16a45aee-5e39-4d1b-b508-40f847c99353 |
| Rulename | TI map IP entity to Cloud App Events |
| Description | Identifies compromises and attacks and detect malicious activities in one’s IP entity from TI |
| Severity | Medium |
| Tactics | CommandAndControl |
| Techniques | T1071 |
| Required data connectors | MicrosoftDefenderThreatIntelligence MicrosoftThreatProtection |
| 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/Threat Intelligence (NEW)/Analytic Rules/IPEntity_CloudAppEvents_Updated.yaml |
| Version | 1.0.4 |
| Arm template | 16a45aee-5e39-4d1b-b508-40f847c99353.json |
let dt_lookBack = 1d;
let ioc_lookBack = 14d;
let IP_Indicators = ThreatIntelIndicators
//extract key part of kv pair
| extend IndicatorType = replace(@"\[|\]|\""", "", tostring(split(ObservableKey, ":", 0)))
| where isnotempty(IndicatorType) and IndicatorType == "ipv4-addr"
| extend NetworkSourceIP = toupper(ObservableValue)
| extend TrafficLightProtocolLevel = tostring(parse_json(AdditionalFields).TLPLevel)
| where TimeGenerated >= ago(ioc_lookBack)
| summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by Id
| where IsActive == true and ValidUntil > now()
| where isnotempty(NetworkSourceIP)
or isnotempty(NetworkSourceIP)
| extend TI_ipEntity = iff(isnotempty(NetworkSourceIP), NetworkSourceIP, NetworkSourceIP)
| extend TIipEntity = iff(isempty(TI_ipEntity) and isnotempty(NetworkSourceIP), NetworkSourceIP, TI_ipEntity);
// | extend TIipEntity = iff(isempty(TI_ipEntity) and isnotempty(EmailSourceIpAddress), EmailSourceIpAddress, TI_ipEntity);
IP_Indicators
| project-reorder *, Tags, TrafficLightProtocolLevel, NetworkSourceIP, Type, TI_ipEntity
| join kind=innerunique (
CloudAppEvents
| where isnotempty(IPAddress)
| where TimeGenerated >= ago(dt_lookBack)
| extend CloudAppEvents_TimeGenerated = TimeGenerated) on $left.TI_ipEntity == $right.IPAddress
| where CloudAppEvents_TimeGenerated < ValidUntil
| summarize CloudAppEventsTimeGenerated = argmax(CloudAppEvents_TimeGenerated, *) by Id, IPAddress
| extend
Description = column_ifexists("max_CloudAppEvents_TimeGenerated_Description", ""),
ActivityGroupNames = column_ifexists("max_CloudAppEvents_TimeGenerated_ActivityGroupNames", ""),
ThreatType = column_ifexists("max_CloudAppEvents_TimeGenerated_ThreatType", ""),
ExpirationDateTime = column_ifexists("max_CloudAppEvents_TimeGenerated_ExpirationDateTime", ""),
ConfidenceScore = column_ifexists("max_CloudAppEvents_TimeGenerated_ConfidenceScore", ""),
TI_ipEntity = column_ifexists("max_CloudAppEvents_TimeGenerated_TI_ipEntity", ""),
NetworkDestinationIP = column_ifexists("max_CloudAppEvents_TimeGenerated_NetworkDestinationIP", ""),
NetworkSourceIP = column_ifexists("max_CloudAppEvents_TimeGenerated_NetworkSourceIP", ""),
EmailSourceIPAddress = column_ifexists("max_CloudAppEvents_TimeGenerated_EmailSourceIpAddress", "")
| project CloudAppEventsTimeGenerated, Description, ActivityGroupNames, Id, ThreatType, ExpirationDateTime, ConfidenceScore, TI_ipEntity, NetworkDestinationIP, NetworkSourceIP, EmailSourceIPAddress
requiredDataConnectors:
- connectorId: MicrosoftThreatProtection
dataTypes:
- CloudAppEvents
- connectorId: MicrosoftDefenderThreatIntelligence
dataTypes:
- ThreatIntelligenceIndicator
query: |
let dt_lookBack = 1d;
let ioc_lookBack = 14d;
let IP_Indicators = ThreatIntelIndicators
//extract key part of kv pair
| extend IndicatorType = replace(@"\[|\]|\""", "", tostring(split(ObservableKey, ":", 0)))
| where isnotempty(IndicatorType) and IndicatorType == "ipv4-addr"
| extend NetworkSourceIP = toupper(ObservableValue)
| extend TrafficLightProtocolLevel = tostring(parse_json(AdditionalFields).TLPLevel)
| where TimeGenerated >= ago(ioc_lookBack)
| summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by Id
| where IsActive == true and ValidUntil > now()
| where isnotempty(NetworkSourceIP)
or isnotempty(NetworkSourceIP)
| extend TI_ipEntity = iff(isnotempty(NetworkSourceIP), NetworkSourceIP, NetworkSourceIP)
| extend TIipEntity = iff(isempty(TI_ipEntity) and isnotempty(NetworkSourceIP), NetworkSourceIP, TI_ipEntity);
// | extend TIipEntity = iff(isempty(TI_ipEntity) and isnotempty(EmailSourceIpAddress), EmailSourceIpAddress, TI_ipEntity);
IP_Indicators
| project-reorder *, Tags, TrafficLightProtocolLevel, NetworkSourceIP, Type, TI_ipEntity
| join kind=innerunique (
CloudAppEvents
| where isnotempty(IPAddress)
| where TimeGenerated >= ago(dt_lookBack)
| extend CloudAppEvents_TimeGenerated = TimeGenerated) on $left.TI_ipEntity == $right.IPAddress
| where CloudAppEvents_TimeGenerated < ValidUntil
| summarize CloudAppEventsTimeGenerated = argmax(CloudAppEvents_TimeGenerated, *) by Id, IPAddress
| extend
Description = column_ifexists("max_CloudAppEvents_TimeGenerated_Description", ""),
ActivityGroupNames = column_ifexists("max_CloudAppEvents_TimeGenerated_ActivityGroupNames", ""),
ThreatType = column_ifexists("max_CloudAppEvents_TimeGenerated_ThreatType", ""),
ExpirationDateTime = column_ifexists("max_CloudAppEvents_TimeGenerated_ExpirationDateTime", ""),
ConfidenceScore = column_ifexists("max_CloudAppEvents_TimeGenerated_ConfidenceScore", ""),
TI_ipEntity = column_ifexists("max_CloudAppEvents_TimeGenerated_TI_ipEntity", ""),
NetworkDestinationIP = column_ifexists("max_CloudAppEvents_TimeGenerated_NetworkDestinationIP", ""),
NetworkSourceIP = column_ifexists("max_CloudAppEvents_TimeGenerated_NetworkSourceIP", ""),
EmailSourceIPAddress = column_ifexists("max_CloudAppEvents_TimeGenerated_EmailSourceIpAddress", "")
| project CloudAppEventsTimeGenerated, Description, ActivityGroupNames, Id, ThreatType, ExpirationDateTime, ConfidenceScore, TI_ipEntity, NetworkDestinationIP, NetworkSourceIP, EmailSourceIPAddress
version: 1.0.4
triggerOperator: gt
queryPeriod: 14d
triggerThreshold: 0
kind: Scheduled
relevantTechniques:
- T1071
name: TI map IP entity to Cloud App Events
description: |
'Identifies compromises and attacks and detect malicious activities in one's IP entity from TI'
severity: Medium
tactics:
- CommandAndControl
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Threat Intelligence (NEW)/Analytic Rules/IPEntity_CloudAppEvents_Updated.yaml
entityMappings:
- entityType: IP
fieldMappings:
- columnName: TI_ipEntity
identifier: Address
- entityType: IP
fieldMappings:
- columnName: NetworkDestinationIP
identifier: Address
- entityType: IP
fieldMappings:
- columnName: NetworkSourceIP
identifier: Address
- entityType: IP
fieldMappings:
- columnName: EmailSourceIPAddress
identifier: Address
queryFrequency: 1h
id: 16a45aee-5e39-4d1b-b508-40f847c99353
{
"$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/16a45aee-5e39-4d1b-b508-40f847c99353')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/16a45aee-5e39-4d1b-b508-40f847c99353')]",
"properties": {
"alertRuleTemplateName": "16a45aee-5e39-4d1b-b508-40f847c99353",
"customDetails": null,
"description": "'Identifies compromises and attacks and detect malicious activities in one's IP entity from TI'\n",
"displayName": "TI map IP entity to Cloud App Events",
"enabled": true,
"entityMappings": [
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "TI_ipEntity",
"identifier": "Address"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "NetworkDestinationIP",
"identifier": "Address"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "NetworkSourceIP",
"identifier": "Address"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "EmailSourceIPAddress",
"identifier": "Address"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Threat Intelligence (NEW)/Analytic Rules/IPEntity_CloudAppEvents_Updated.yaml",
"query": "let dt_lookBack = 1d;\nlet ioc_lookBack = 14d; \nlet IP_Indicators = ThreatIntelIndicators\n//extract key part of kv pair\n | extend IndicatorType = replace(@\"\\[|\\]|\\\"\"\", \"\", tostring(split(ObservableKey, \":\", 0)))\n | where isnotempty(IndicatorType) and IndicatorType == \"ipv4-addr\"\n | extend NetworkSourceIP = toupper(ObservableValue)\n | extend TrafficLightProtocolLevel = tostring(parse_json(AdditionalFields).TLPLevel)\n | where TimeGenerated >= ago(ioc_lookBack)\n | summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by Id\n | where IsActive == true and ValidUntil > now()\n | where isnotempty(NetworkSourceIP)\nor isnotempty(NetworkSourceIP)\n | extend TI_ipEntity = iff(isnotempty(NetworkSourceIP), NetworkSourceIP, NetworkSourceIP)\n | extend TIipEntity = iff(isempty(TI_ipEntity) and isnotempty(NetworkSourceIP), NetworkSourceIP, TI_ipEntity);\n// | extend TIipEntity = iff(isempty(TI_ipEntity) and isnotempty(EmailSourceIpAddress), EmailSourceIpAddress, TI_ipEntity);\nIP_Indicators\n | project-reorder *, Tags, TrafficLightProtocolLevel, NetworkSourceIP, Type, TI_ipEntity\n | join kind=innerunique (\n CloudAppEvents\n | where isnotempty(IPAddress)\n | where TimeGenerated >= ago(dt_lookBack)\n | extend CloudAppEvents_TimeGenerated = TimeGenerated) on $left.TI_ipEntity == $right.IPAddress\n | where CloudAppEvents_TimeGenerated < ValidUntil\n | summarize CloudAppEventsTimeGenerated = argmax(CloudAppEvents_TimeGenerated, *) by Id, IPAddress\n | extend\n Description = column_ifexists(\"max_CloudAppEvents_TimeGenerated_Description\", \"\"),\n ActivityGroupNames = column_ifexists(\"max_CloudAppEvents_TimeGenerated_ActivityGroupNames\", \"\"),\n ThreatType = column_ifexists(\"max_CloudAppEvents_TimeGenerated_ThreatType\", \"\"),\n ExpirationDateTime = column_ifexists(\"max_CloudAppEvents_TimeGenerated_ExpirationDateTime\", \"\"),\n ConfidenceScore = column_ifexists(\"max_CloudAppEvents_TimeGenerated_ConfidenceScore\", \"\"),\n TI_ipEntity = column_ifexists(\"max_CloudAppEvents_TimeGenerated_TI_ipEntity\", \"\"),\n NetworkDestinationIP = column_ifexists(\"max_CloudAppEvents_TimeGenerated_NetworkDestinationIP\", \"\"),\n NetworkSourceIP = column_ifexists(\"max_CloudAppEvents_TimeGenerated_NetworkSourceIP\", \"\"),\n EmailSourceIPAddress = column_ifexists(\"max_CloudAppEvents_TimeGenerated_EmailSourceIpAddress\", \"\")\n | project CloudAppEventsTimeGenerated, Description, ActivityGroupNames, Id, ThreatType, ExpirationDateTime, ConfidenceScore, TI_ipEntity, NetworkDestinationIP, NetworkSourceIP, EmailSourceIPAddress\n",
"queryFrequency": "PT1H",
"queryPeriod": "P14D",
"severity": "Medium",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"CommandAndControl"
],
"techniques": [
"T1071"
],
"templateVersion": "1.0.4",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}