Lateral Movement via DCOM
| Id | 50cbf34a-4cdd-45d7-b3f5-8b53a1d0d14f |
| Rulename | Lateral Movement via DCOM |
| Description | This query detects a fairly uncommon attack technique using the Windows Distributed Component Object Model (DCOM) to make a remote execution call to another computer system and gain lateral movement throughout the network. Ref: http://thenegative.zone/incident%20response/2017/02/04/MMC20.Application-Lateral-Movement-Analysis.html |
| Severity | Medium |
| Tactics | LateralMovement |
| Techniques | T1021.003 |
| Required data connectors | SecurityEvents WindowsSecurityEvents |
| 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/Endpoint Threat Protection Essentials/Analytic Rules/LateralMovementViaDCOM.yaml |
| Version | 1.0.3 |
| Arm template | 50cbf34a-4cdd-45d7-b3f5-8b53a1d0d14f.json |
Event
| where EventLog =~ "Microsoft-Windows-Sysmon/Operational" and EventID==1
| parse EventData with * 'CommandLine">' CommandLine "<" * 'ParentCommandLine">' ParentCommandLine "<" *
| where ParentCommandLine =~ "C:\\Windows\\System32\\svchost.exe -k DcomLaunch" and CommandLine =~ "C:\\Windows\\System32\\mmc.exe -Embedding"
| parse EventData with * 'ProcessGuid">' ProcessGuid "<" * 'Image">' Image "<" * 'Description">' Description "<" * 'CurrentDirectory">' CurrentDirectory "<" * 'User">' User "<" * 'LogonGuid">' LogonGuid "<" * 'ParentProcessGuid">' ParentProcessGuid "<" * 'ParentImage">' ParentImage "<" * 'ParentCommandLine">' ParentCommandLine "<" * 'ParentUser">' ParentUser "<" *
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by EventID, Computer, User, ParentImage, ParentProcessGuid, ParentCommandLine, ParentUser, Image, ProcessGuid, CommandLine, Description
| extend HostName = iif(Computer has '.',substring(Computer,0,indexof(Computer,'.')),Computer) , DnsDomain = iif(Computer has '.',substring(Computer,indexof(Computer,'.')+1),'')
kind: Scheduled
relevantTechniques:
- T1021.003
description: |
'This query detects a fairly uncommon attack technique using the Windows Distributed Component Object Model (DCOM) to make a remote execution call to another computer system and gain lateral movement throughout the network.
Ref: http://thenegative.zone/incident%20response/2017/02/04/MMC20.Application-Lateral-Movement-Analysis.html'
queryPeriod: 1h
queryFrequency: 1h
tactics:
- LateralMovement
name: Lateral Movement via DCOM
requiredDataConnectors:
- connectorId: SecurityEvents
dataTypes:
- SecurityEvent
- connectorId: WindowsSecurityEvents
dataTypes:
- SecurityEvent
entityMappings:
- entityType: Process
fieldMappings:
- identifier: CommandLine
columnName: CommandLine
- entityType: Host
fieldMappings:
- identifier: FullName
columnName: Computer
- identifier: HostName
columnName: HostName
- identifier: DnsDomain
columnName: DnsDomain
- entityType: Account
fieldMappings:
- identifier: Name
columnName: User
triggerThreshold: 0
version: 1.0.3
id: 50cbf34a-4cdd-45d7-b3f5-8b53a1d0d14f
query: |
Event
| where EventLog =~ "Microsoft-Windows-Sysmon/Operational" and EventID==1
| parse EventData with * 'CommandLine">' CommandLine "<" * 'ParentCommandLine">' ParentCommandLine "<" *
| where ParentCommandLine =~ "C:\\Windows\\System32\\svchost.exe -k DcomLaunch" and CommandLine =~ "C:\\Windows\\System32\\mmc.exe -Embedding"
| parse EventData with * 'ProcessGuid">' ProcessGuid "<" * 'Image">' Image "<" * 'Description">' Description "<" * 'CurrentDirectory">' CurrentDirectory "<" * 'User">' User "<" * 'LogonGuid">' LogonGuid "<" * 'ParentProcessGuid">' ParentProcessGuid "<" * 'ParentImage">' ParentImage "<" * 'ParentCommandLine">' ParentCommandLine "<" * 'ParentUser">' ParentUser "<" *
| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by EventID, Computer, User, ParentImage, ParentProcessGuid, ParentCommandLine, ParentUser, Image, ProcessGuid, CommandLine, Description
| extend HostName = iif(Computer has '.',substring(Computer,0,indexof(Computer,'.')),Computer) , DnsDomain = iif(Computer has '.',substring(Computer,indexof(Computer,'.')+1),'')
status: Available
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Endpoint Threat Protection Essentials/Analytic Rules/LateralMovementViaDCOM.yaml
severity: Medium
{
"$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/50cbf34a-4cdd-45d7-b3f5-8b53a1d0d14f')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/50cbf34a-4cdd-45d7-b3f5-8b53a1d0d14f')]",
"properties": {
"alertRuleTemplateName": "50cbf34a-4cdd-45d7-b3f5-8b53a1d0d14f",
"customDetails": null,
"description": "'This query detects a fairly uncommon attack technique using the Windows Distributed Component Object Model (DCOM) to make a remote execution call to another computer system and gain lateral movement throughout the network.\nRef: http://thenegative.zone/incident%20response/2017/02/04/MMC20.Application-Lateral-Movement-Analysis.html'\n",
"displayName": "Lateral Movement via DCOM",
"enabled": true,
"entityMappings": [
{
"entityType": "Process",
"fieldMappings": [
{
"columnName": "CommandLine",
"identifier": "CommandLine"
}
]
},
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "Computer",
"identifier": "FullName"
},
{
"columnName": "HostName",
"identifier": "HostName"
},
{
"columnName": "DnsDomain",
"identifier": "DnsDomain"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "User",
"identifier": "Name"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Endpoint Threat Protection Essentials/Analytic Rules/LateralMovementViaDCOM.yaml",
"query": "Event\n| where EventLog =~ \"Microsoft-Windows-Sysmon/Operational\" and EventID==1\n| parse EventData with * 'CommandLine\">' CommandLine \"<\" * 'ParentCommandLine\">' ParentCommandLine \"<\" *\n| where ParentCommandLine =~ \"C:\\\\Windows\\\\System32\\\\svchost.exe -k DcomLaunch\" and CommandLine =~ \"C:\\\\Windows\\\\System32\\\\mmc.exe -Embedding\"\n| parse EventData with * 'ProcessGuid\">' ProcessGuid \"<\" * 'Image\">' Image \"<\" * 'Description\">' Description \"<\" * 'CurrentDirectory\">' CurrentDirectory \"<\" * 'User\">' User \"<\" * 'LogonGuid\">' LogonGuid \"<\" * 'ParentProcessGuid\">' ParentProcessGuid \"<\" * 'ParentImage\">' ParentImage \"<\" * 'ParentCommandLine\">' ParentCommandLine \"<\" * 'ParentUser\">' ParentUser \"<\" *\n| summarize StartTime = min(TimeGenerated), EndTime = max(TimeGenerated) by EventID, Computer, User, ParentImage, ParentProcessGuid, ParentCommandLine, ParentUser, Image, ProcessGuid, CommandLine, Description\n| extend HostName = iif(Computer has '.',substring(Computer,0,indexof(Computer,'.')),Computer) , DnsDomain = iif(Computer has '.',substring(Computer,indexof(Computer,'.')+1),'')\n",
"queryFrequency": "PT1H",
"queryPeriod": "PT1H",
"severity": "Medium",
"status": "Available",
"subTechniques": [
"T1021.003"
],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"LateralMovement"
],
"techniques": [
"T1021"
],
"templateVersion": "1.0.3",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}