AV detections related to Tarrask malware
Id | 1785d372-b9fe-4283-96a6-3a1d83cabfd1 |
Rulename | AV detections related to Tarrask malware |
Description | This query looks for Microsoft Defender AV detections related to Tarrask malware. In Microsoft Sentinel the SecurityAlerts table includes only the Device Name of the affected device, this query joins the DeviceInfo table to clearly connect other information such as Device group, ip, logged on users etc. This would allow the Microsoft Sentinel analyst to have more context related to the alert, if available. Reference: https://www.microsoft.com/security/blog/2022/04/12/tarrask-malware-uses-scheduled-tasks-for-defense-evasion/ |
Severity | High |
Tactics | Persistence |
Techniques | T1053 |
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/Solutions/Microsoft 365 Defender/Analytic Rules/AVTarrask.yaml |
Version | 1.0.1 |
Arm template | 1785d372-b9fe-4283-96a6-3a1d83cabfd1.json |
let Tarrask_threats = dynamic(["HackTool:Win64/Tarrask!MS", "HackTool:Win64/Ligolo!MSR", "Behavior:Win32/ScheduledTaskHide.A", "Tarrask"]);
DeviceInfo
| extend DeviceName = tolower(DeviceName)
| join kind=rightouter ( SecurityAlert
| where ProviderName == "MDATP"
| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
| extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)
| where ThreatName in~ (Tarrask_threats) or ThreatFamilyName in~ (Tarrask_threats)
| extend CompromisedEntity = tolower(CompromisedEntity)
) on $left.DeviceName == $right.CompromisedEntity
triggerOperator: gt
id: 1785d372-b9fe-4283-96a6-3a1d83cabfd1
queryFrequency: 1d
entityMappings:
- entityType: Host
fieldMappings:
- columnName: CompromisedEntity
identifier: FullName
- entityType: IP
fieldMappings:
- columnName: PublicIP
identifier: Address
requiredDataConnectors:
- dataTypes:
- SecurityAlert
connectorId: MicrosoftThreatProtection
severity: High
triggerThreshold: 0
kind: Scheduled
status: Available
queryPeriod: 1d
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft 365 Defender/Analytic Rules/AVTarrask.yaml
query: |
let Tarrask_threats = dynamic(["HackTool:Win64/Tarrask!MS", "HackTool:Win64/Ligolo!MSR", "Behavior:Win32/ScheduledTaskHide.A", "Tarrask"]);
DeviceInfo
| extend DeviceName = tolower(DeviceName)
| join kind=rightouter ( SecurityAlert
| where ProviderName == "MDATP"
| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
| extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)
| where ThreatName in~ (Tarrask_threats) or ThreatFamilyName in~ (Tarrask_threats)
| extend CompromisedEntity = tolower(CompromisedEntity)
) on $left.DeviceName == $right.CompromisedEntity
description: |
'This query looks for Microsoft Defender AV detections related to Tarrask malware. In Microsoft Sentinel the SecurityAlerts table
includes only the Device Name of the affected device, this query joins the DeviceInfo table to clearly connect other information such as Device group, ip, logged on users etc.
This would allow the Microsoft Sentinel analyst to have more context related to the alert, if available.
Reference: https://www.microsoft.com/security/blog/2022/04/12/tarrask-malware-uses-scheduled-tasks-for-defense-evasion/'
name: AV detections related to Tarrask malware
relevantTechniques:
- T1053
tactics:
- Persistence
version: 1.0.1
{
"$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/1785d372-b9fe-4283-96a6-3a1d83cabfd1')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/1785d372-b9fe-4283-96a6-3a1d83cabfd1')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01",
"properties": {
"displayName": "AV detections related to Tarrask malware",
"description": "'This query looks for Microsoft Defender AV detections related to Tarrask malware. In Microsoft Sentinel the SecurityAlerts table \n includes only the Device Name of the affected device, this query joins the DeviceInfo table to clearly connect other information such as Device group, ip, logged on users etc. \n This would allow the Microsoft Sentinel analyst to have more context related to the alert, if available.\n Reference: https://www.microsoft.com/security/blog/2022/04/12/tarrask-malware-uses-scheduled-tasks-for-defense-evasion/'\n",
"severity": "High",
"enabled": true,
"query": "let Tarrask_threats = dynamic([\"HackTool:Win64/Tarrask!MS\", \"HackTool:Win64/Ligolo!MSR\", \"Behavior:Win32/ScheduledTaskHide.A\", \"Tarrask\"]);\nDeviceInfo\n| extend DeviceName = tolower(DeviceName)\n| join kind=rightouter ( SecurityAlert\n| where ProviderName == \"MDATP\"\n| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)\n| extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)\n| where ThreatName in~ (Tarrask_threats) or ThreatFamilyName in~ (Tarrask_threats)\n| extend CompromisedEntity = tolower(CompromisedEntity)\n) on $left.DeviceName == $right.CompromisedEntity\n",
"queryFrequency": "P1D",
"queryPeriod": "P1D",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Persistence"
],
"techniques": [
"T1053"
],
"alertRuleTemplateName": "1785d372-b9fe-4283-96a6-3a1d83cabfd1",
"customDetails": null,
"entityMappings": [
{
"fieldMappings": [
{
"identifier": "FullName",
"columnName": "CompromisedEntity"
}
],
"entityType": "Host"
},
{
"fieldMappings": [
{
"identifier": "Address",
"columnName": "PublicIP"
}
],
"entityType": "IP"
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft 365 Defender/Analytic Rules/AVTarrask.yaml",
"templateVersion": "1.0.1",
"status": "Available"
}
}
]
}