New EXE deployed via Default Domain or Default Domain Controller Policies
Id | 05b4bccd-dd12-423d-8de4-5a6fb526bb4f |
Rulename | New EXE deployed via Default Domain or Default Domain Controller Policies |
Description | This detection highlights executables deployed to hosts via either the Default Domain or Default Domain Controller Policies. These policies apply to all hosts or Domain Controllers and best practice is that these policies should not be used for deployment of files. A threat actor may use these policies to deploy files or scripts to all hosts in a domain. |
Severity | High |
Tactics | Execution LateralMovement |
Techniques | T1072 T1570 |
Required data connectors | SecurityEvents WindowsSecurityEvents |
Kind | Scheduled |
Query frequency | 1d |
Query period | 14d |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Windows Security Events/Analytic Rules/NewEXEdeployedviaDefaultDomainorDefaultDomainControllerPolicies.yaml |
Version | 1.0.2 |
Arm template | 05b4bccd-dd12-423d-8de4-5a6fb526bb4f.json |
let known_processes = (
SecurityEvent
// If adjusting Query Period or Frequency update these
| where TimeGenerated between(ago(14d)..ago(1d))
| where EventID == 4688
| where NewProcessName has_any ("Policies\\{6AC1786C-016F-11D2-945F-00C04fB984F9}", "Policies\\{31B2F340-016D-11D2-945F-00C04FB984F9}")
| summarize by Process);
SecurityEvent
// If adjusting Query Period or Frequency update these
| where TimeGenerated > ago(1d)
| where EventID == 4688
| where NewProcessName has_any ("Policies\\{6AC1786C-016F-11D2-945F-00C04fB984F9}", "Policies\\{31B2F340-016D-11D2-945F-00C04FB984F9}")
| where Process !in (known_processes)
// This will likely apply to multiple hosts so summarize these data
| summarize FirstSeen=min(TimeGenerated), LastSeen=max(TimeGenerated) by Process, NewProcessName, CommandLine, Computer
| extend HostName = tostring(split(Computer, ".")[0]), DomainIndex = toint(indexof(Computer, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(Computer, DomainIndex + 1), Computer)
name: New EXE deployed via Default Domain or Default Domain Controller Policies
relevantTechniques:
- T1072
- T1570
queryPeriod: 14d
queryFrequency: 1d
description: |
'This detection highlights executables deployed to hosts via either the Default Domain or Default Domain Controller Policies. These policies apply to all hosts or Domain Controllers and best practice is that these policies should not be used for deployment of files.
A threat actor may use these policies to deploy files or scripts to all hosts in a domain.'
severity: High
kind: Scheduled
tactics:
- Execution
- LateralMovement
triggerOperator: gt
entityMappings:
- entityType: Host
fieldMappings:
- identifier: FullName
columnName: Computer
- identifier: HostName
columnName: HostName
- identifier: DnsDomain
columnName: HostNameDomain
version: 1.0.2
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Windows Security Events/Analytic Rules/NewEXEdeployedviaDefaultDomainorDefaultDomainControllerPolicies.yaml
status: Available
id: 05b4bccd-dd12-423d-8de4-5a6fb526bb4f
query: |
let known_processes = (
SecurityEvent
// If adjusting Query Period or Frequency update these
| where TimeGenerated between(ago(14d)..ago(1d))
| where EventID == 4688
| where NewProcessName has_any ("Policies\\{6AC1786C-016F-11D2-945F-00C04fB984F9}", "Policies\\{31B2F340-016D-11D2-945F-00C04FB984F9}")
| summarize by Process);
SecurityEvent
// If adjusting Query Period or Frequency update these
| where TimeGenerated > ago(1d)
| where EventID == 4688
| where NewProcessName has_any ("Policies\\{6AC1786C-016F-11D2-945F-00C04fB984F9}", "Policies\\{31B2F340-016D-11D2-945F-00C04FB984F9}")
| where Process !in (known_processes)
// This will likely apply to multiple hosts so summarize these data
| summarize FirstSeen=min(TimeGenerated), LastSeen=max(TimeGenerated) by Process, NewProcessName, CommandLine, Computer
| extend HostName = tostring(split(Computer, ".")[0]), DomainIndex = toint(indexof(Computer, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(Computer, DomainIndex + 1), Computer)
requiredDataConnectors:
- connectorId: SecurityEvents
dataTypes:
- SecurityEvent
- connectorId: WindowsSecurityEvents
dataTypes:
- SecurityEvent
{
"$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/05b4bccd-dd12-423d-8de4-5a6fb526bb4f')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/05b4bccd-dd12-423d-8de4-5a6fb526bb4f')]",
"properties": {
"alertRuleTemplateName": "05b4bccd-dd12-423d-8de4-5a6fb526bb4f",
"customDetails": null,
"description": "'This detection highlights executables deployed to hosts via either the Default Domain or Default Domain Controller Policies. These policies apply to all hosts or Domain Controllers and best practice is that these policies should not be used for deployment of files.\nA threat actor may use these policies to deploy files or scripts to all hosts in a domain.'\n",
"displayName": "New EXE deployed via Default Domain or Default Domain Controller Policies",
"enabled": true,
"entityMappings": [
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "Computer",
"identifier": "FullName"
},
{
"columnName": "HostName",
"identifier": "HostName"
},
{
"columnName": "HostNameDomain",
"identifier": "DnsDomain"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Windows Security Events/Analytic Rules/NewEXEdeployedviaDefaultDomainorDefaultDomainControllerPolicies.yaml",
"query": "let known_processes = (\n SecurityEvent\n // If adjusting Query Period or Frequency update these\n | where TimeGenerated between(ago(14d)..ago(1d))\n | where EventID == 4688\n | where NewProcessName has_any (\"Policies\\\\{6AC1786C-016F-11D2-945F-00C04fB984F9}\", \"Policies\\\\{31B2F340-016D-11D2-945F-00C04FB984F9}\")\n | summarize by Process);\n SecurityEvent\n // If adjusting Query Period or Frequency update these\n | where TimeGenerated > ago(1d)\n | where EventID == 4688\n | where NewProcessName has_any (\"Policies\\\\{6AC1786C-016F-11D2-945F-00C04fB984F9}\", \"Policies\\\\{31B2F340-016D-11D2-945F-00C04FB984F9}\")\n | where Process !in (known_processes)\n // This will likely apply to multiple hosts so summarize these data\n | summarize FirstSeen=min(TimeGenerated), LastSeen=max(TimeGenerated) by Process, NewProcessName, CommandLine, Computer\n | extend HostName = tostring(split(Computer, \".\")[0]), DomainIndex = toint(indexof(Computer, '.'))\n | extend HostNameDomain = iff(DomainIndex != -1, substring(Computer, DomainIndex + 1), Computer)\n",
"queryFrequency": "P1D",
"queryPeriod": "P14D",
"severity": "High",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Execution",
"LateralMovement"
],
"techniques": [
"T1072",
"T1570"
],
"templateVersion": "1.0.2",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}