TI map IP entity to LastPass data
Id | 2a723664-22c2-4d3e-bbec-5843b90166f3 |
Rulename | TI map IP entity to LastPass data |
Description | Identifies a match in LastPass table from any IP IOC from TI |
Severity | Medium |
Tactics | Impact |
Techniques | T1485 |
Required data connectors | LastPass ThreatIntelligence |
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/LastPass/Analytic Rules/TIMapIPEntityToLastPass.yaml |
Version | 1.0.0 |
Arm template | 2a723664-22c2-4d3e-bbec-5843b90166f3.json |
let dt_lookBack = 1h;
let ioc_lookBack = 14d;
ThreatIntelligenceIndicator
| where TimeGenerated >= ago(ioc_lookBack) and ExpirationDateTime > now()
| where Active == true
// Picking up only IOC's that contain the entities we want
| where isnotempty(NetworkIP) or isnotempty(EmailSourceIpAddress) or isnotempty(NetworkDestinationIP) or isnotempty(NetworkSourceIP)
// As there is potentially more than 1 indicator type for matching IP, taking Network IP first, then others if that is empty.
// Taking the first non-empty value based on potential IOC match availability
| extend TI_ipEntity = iff(isnotempty(NetworkIP), NetworkIP, NetworkDestinationIP)
| extend TI_ipEntity = iff(isempty(TI_ipEntity) and isnotempty(NetworkSourceIP), NetworkSourceIP, TI_ipEntity)
| extend TI_ipEntity = iff(isempty(TI_ipEntity) and isnotempty(EmailSourceIpAddress), EmailSourceIpAddress, TI_ipEntity)
| join (
LastPassNativePoller_CL | where todatetime(Time_s) >= ago(dt_lookBack)
| where Action_s != "Reporting"
// renaming time column so it is clear the log this came from
| extend LastPass_TimeGenerated = todatetime(Time_s)
)
on $left.TI_ipEntity == $right.IP_Address_s
| summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by IndicatorId
| project LatestIndicatorTime, Description, ActivityGroupNames, IndicatorId, ThreatType, Url, ExpirationDateTime, ConfidenceScore, LastPass_TimeGenerated,
TI_ipEntity, IP_Address_s, Username_s, Action_s, Data_s, NetworkIP, NetworkDestinationIP, NetworkSourceIP, EmailSourceIpAddress
| extend timestamp = LastPass_TimeGenerated, AccountCustomEntity = Username_s, IPCustomEntity = IP_Address_s, URLCustomEntity = Url
relevantTechniques:
- T1485
version: 1.0.0
eventGroupingSettings:
aggregationKind: AlertPerResult
name: TI map IP entity to LastPass data
severity: Medium
kind: Scheduled
queryPeriod: 14d
description: |
'Identifies a match in LastPass table from any IP IOC from TI'
query: |
let dt_lookBack = 1h;
let ioc_lookBack = 14d;
ThreatIntelligenceIndicator
| where TimeGenerated >= ago(ioc_lookBack) and ExpirationDateTime > now()
| where Active == true
// Picking up only IOC's that contain the entities we want
| where isnotempty(NetworkIP) or isnotempty(EmailSourceIpAddress) or isnotempty(NetworkDestinationIP) or isnotempty(NetworkSourceIP)
// As there is potentially more than 1 indicator type for matching IP, taking Network IP first, then others if that is empty.
// Taking the first non-empty value based on potential IOC match availability
| extend TI_ipEntity = iff(isnotempty(NetworkIP), NetworkIP, NetworkDestinationIP)
| extend TI_ipEntity = iff(isempty(TI_ipEntity) and isnotempty(NetworkSourceIP), NetworkSourceIP, TI_ipEntity)
| extend TI_ipEntity = iff(isempty(TI_ipEntity) and isnotempty(EmailSourceIpAddress), EmailSourceIpAddress, TI_ipEntity)
| join (
LastPassNativePoller_CL | where todatetime(Time_s) >= ago(dt_lookBack)
| where Action_s != "Reporting"
// renaming time column so it is clear the log this came from
| extend LastPass_TimeGenerated = todatetime(Time_s)
)
on $left.TI_ipEntity == $right.IP_Address_s
| summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by IndicatorId
| project LatestIndicatorTime, Description, ActivityGroupNames, IndicatorId, ThreatType, Url, ExpirationDateTime, ConfidenceScore, LastPass_TimeGenerated,
TI_ipEntity, IP_Address_s, Username_s, Action_s, Data_s, NetworkIP, NetworkDestinationIP, NetworkSourceIP, EmailSourceIpAddress
| extend timestamp = LastPass_TimeGenerated, AccountCustomEntity = Username_s, IPCustomEntity = IP_Address_s, URLCustomEntity = Url
tactics:
- Impact
triggerOperator: gt
entityMappings:
- entityType: Account
fieldMappings:
- columnName: AccountCustomEntity
identifier: Name
- entityType: IP
fieldMappings:
- columnName: IPCustomEntity
identifier: Address
- entityType: URL
fieldMappings:
- columnName: URLCustomEntity
identifier: Url
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/LastPass/Analytic Rules/TIMapIPEntityToLastPass.yaml
requiredDataConnectors:
- connectorId: LastPass
dataTypes:
- LastPassNativePoller_CL
- connectorId: ThreatIntelligence
dataTypes:
- ThreatIntelligenceIndicator
status: Available
queryFrequency: 1h
id: 2a723664-22c2-4d3e-bbec-5843b90166f3
{
"$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/2a723664-22c2-4d3e-bbec-5843b90166f3')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/2a723664-22c2-4d3e-bbec-5843b90166f3')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01-preview",
"properties": {
"displayName": "TI map IP entity to LastPass data",
"description": "'Identifies a match in LastPass table from any IP IOC from TI'\n",
"severity": "Medium",
"enabled": true,
"query": "let dt_lookBack = 1h;\nlet ioc_lookBack = 14d;\nThreatIntelligenceIndicator\n| where TimeGenerated >= ago(ioc_lookBack) and ExpirationDateTime > now()\n| where Active == true\n// Picking up only IOC's that contain the entities we want\n| where isnotempty(NetworkIP) or isnotempty(EmailSourceIpAddress) or isnotempty(NetworkDestinationIP) or isnotempty(NetworkSourceIP)\n// As there is potentially more than 1 indicator type for matching IP, taking Network IP first, then others if that is empty.\n// Taking the first non-empty value based on potential IOC match availability\n| extend TI_ipEntity = iff(isnotempty(NetworkIP), NetworkIP, NetworkDestinationIP)\n| extend TI_ipEntity = iff(isempty(TI_ipEntity) and isnotempty(NetworkSourceIP), NetworkSourceIP, TI_ipEntity)\n| extend TI_ipEntity = iff(isempty(TI_ipEntity) and isnotempty(EmailSourceIpAddress), EmailSourceIpAddress, TI_ipEntity)\n| join (\n LastPassNativePoller_CL | where todatetime(Time_s) >= ago(dt_lookBack)\n | where Action_s != \"Reporting\"\n // renaming time column so it is clear the log this came from\n | extend LastPass_TimeGenerated = todatetime(Time_s)\n)\non $left.TI_ipEntity == $right.IP_Address_s\n| summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by IndicatorId\n| project LatestIndicatorTime, Description, ActivityGroupNames, IndicatorId, ThreatType, Url, ExpirationDateTime, ConfidenceScore, LastPass_TimeGenerated, \nTI_ipEntity, IP_Address_s, Username_s, Action_s, Data_s, NetworkIP, NetworkDestinationIP, NetworkSourceIP, EmailSourceIpAddress\n| extend timestamp = LastPass_TimeGenerated, AccountCustomEntity = Username_s, IPCustomEntity = IP_Address_s, URLCustomEntity = Url\n",
"queryFrequency": "PT1H",
"queryPeriod": "P14D",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Impact"
],
"techniques": [
"T1485"
],
"alertRuleTemplateName": "2a723664-22c2-4d3e-bbec-5843b90166f3",
"eventGroupingSettings": {
"aggregationKind": "AlertPerResult"
},
"customDetails": null,
"entityMappings": [
{
"fieldMappings": [
{
"columnName": "AccountCustomEntity",
"identifier": "Name"
}
],
"entityType": "Account"
},
{
"fieldMappings": [
{
"columnName": "IPCustomEntity",
"identifier": "Address"
}
],
"entityType": "IP"
},
{
"fieldMappings": [
{
"columnName": "URLCustomEntity",
"identifier": "Url"
}
],
"entityType": "URL"
}
],
"status": "Available",
"templateVersion": "1.0.0",
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/LastPass/Analytic Rules/TIMapIPEntityToLastPass.yaml"
}
}
]
}