PE file dropped in Color Profile Folder
Id | f68a5046-b7eb-4f69-9519-1e99708bb9e0 |
Rulename | PE file dropped in Color Profile Folder |
Description | This query looks for writes of PE files to C:\Windows\System32\spool\drivers\color\. This is a common directory used by malware, as well as some legitimate programs, and writes of PE files to the folder should be monitored. Ref: https://www.microsoft.com/security/blog/2022/07/27/untangling-knotweed-european-private-sector-offensive-actor-using-0-day-exploits/ |
Severity | Medium |
Tactics | Execution |
Techniques | T1203 |
Required data connectors | MicrosoftThreatProtection |
Kind | Scheduled |
Query frequency | 1d |
Query period | 1d |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Detections/DeviceFileEvents/PEfiledroppedinColorDriversFolder.yaml |
Version | 1.0.1 |
Arm template | f68a5046-b7eb-4f69-9519-1e99708bb9e0.json |
DeviceFileEvents
| where ActionType =~ "FileCreated"
| where FolderPath has "C:\\Windows\\System32\\spool\\drivers\\color\\"
| where FileName endswith ".exe" or FileName endswith ".dll"
id: f68a5046-b7eb-4f69-9519-1e99708bb9e0
triggerOperator: gt
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/DeviceFileEvents/PEfiledroppedinColorDriversFolder.yaml
requiredDataConnectors:
- dataTypes:
- DeviceFileEvents
connectorId: MicrosoftThreatProtection
description: |
'This query looks for writes of PE files to C:\Windows\System32\spool\drivers\color\.
This is a common directory used by malware, as well as some legitimate programs, and writes of PE files to the folder should be monitored.
Ref: https://www.microsoft.com/security/blog/2022/07/27/untangling-knotweed-european-private-sector-offensive-actor-using-0-day-exploits/'
severity: Medium
queryPeriod: 1d
kind: Scheduled
tags:
- KNOTWEED
tactics:
- Execution
queryFrequency: 1d
query: |
DeviceFileEvents
| where ActionType =~ "FileCreated"
| where FolderPath has "C:\\Windows\\System32\\spool\\drivers\\color\\"
| where FileName endswith ".exe" or FileName endswith ".dll"
version: 1.0.1
triggerThreshold: 0
name: PE file dropped in Color Profile Folder
entityMappings:
- entityType: File
fieldMappings:
- columnName: FileName
identifier: Name
- entityType: Host
fieldMappings:
- columnName: DeviceName
identifier: HostName
relevantTechniques:
- T1203
metadata:
support:
tier: Community
categories:
domains:
- Security - Others
author:
name: Pete Bryan
source:
kind: Community
{
"$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/f68a5046-b7eb-4f69-9519-1e99708bb9e0')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/f68a5046-b7eb-4f69-9519-1e99708bb9e0')]",
"properties": {
"alertRuleTemplateName": "f68a5046-b7eb-4f69-9519-1e99708bb9e0",
"customDetails": null,
"description": "'This query looks for writes of PE files to C:\\Windows\\System32\\spool\\drivers\\color\\.\n This is a common directory used by malware, as well as some legitimate programs, and writes of PE files to the folder should be monitored.\n Ref: https://www.microsoft.com/security/blog/2022/07/27/untangling-knotweed-european-private-sector-offensive-actor-using-0-day-exploits/'\n",
"displayName": "PE file dropped in Color Profile Folder",
"enabled": true,
"entityMappings": [
{
"entityType": "File",
"fieldMappings": [
{
"columnName": "FileName",
"identifier": "Name"
}
]
},
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "DeviceName",
"identifier": "HostName"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Detections/DeviceFileEvents/PEfiledroppedinColorDriversFolder.yaml",
"query": "DeviceFileEvents\n | where ActionType =~ \"FileCreated\"\n | where FolderPath has \"C:\\\\Windows\\\\System32\\\\spool\\\\drivers\\\\color\\\\\" \n | where FileName endswith \".exe\" or FileName endswith \".dll\"\n",
"queryFrequency": "P1D",
"queryPeriod": "P1D",
"severity": "Medium",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Execution"
],
"tags": [
"KNOTWEED"
],
"techniques": [
"T1203"
],
"templateVersion": "1.0.1",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}