AV detections related to Zinc actors

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Id	3705158d-e008-49c9-92dd-e538e1549090
Rulename	AV detections related to Zinc actors
Description	This query looks for Microsoft Defender AV detections related to Zinc threat actor. 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, 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/2022/09/29/zinc-weaponizing-open-source-software/
Severity	High
Tactics	Impact
Techniques	T1486
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/Zinc Open Source/Analytic Rules/ZincOctober2022_AVHits_IOC.yaml
Version	1.0.2
Arm template	3705158d-e008-49c9-92dd-e538e1549090.json

KQL

let Zinc_threats = dynamic(["Trojan:Win32/ZetaNile.A", "Trojan:Win32/EventHorizon.A", "Trojan:Win32/FoggyBrass.A", "Trojan:Win32/FoggyBrass.B", "Trojan:Win32/PhantomStar.A","Trojan:Win32/PhantomStar.C","TrojanDropper:Win32/PhantomStar.A"]);
DeviceInfo
| extend DeviceName = tolower(DeviceName)
| join kind=inner ( SecurityAlert
| where ProviderName == "MDATP"
| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
| extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)
| where ThreatName in~ (Zinc_threats) or ThreatFamilyName in~ (Zinc_threats)
| extend CompromisedEntity = tolower(CompromisedEntity)
) on $left.DeviceName == $right.CompromisedEntity
| summarize by DisplayName, ThreatName, ThreatFamilyName, PublicIP, AlertSeverity, Description, tostring(LoggedOnUsers), DeviceId, TenantId , bin(TimeGenerated, 1d), CompromisedEntity, tostring(LoggedOnUsers), ProductName, Entities
| extend HostName = tostring(split(CompromisedEntity, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(CompromisedEntity, '.'), 1, -1), '.'))

YAML

tags:
- Zinc
description: |
  'This query looks for Microsoft Defender AV detections related to  Zinc threat actor. 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, 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/2022/09/29/zinc-weaponizing-open-source-software/'  
triggerThreshold: 0
queryPeriod: 1d
triggerOperator: gt
kind: Scheduled
relevantTechniques:
- T1486
query: |
  let Zinc_threats = dynamic(["Trojan:Win32/ZetaNile.A", "Trojan:Win32/EventHorizon.A", "Trojan:Win32/FoggyBrass.A", "Trojan:Win32/FoggyBrass.B", "Trojan:Win32/PhantomStar.A","Trojan:Win32/PhantomStar.C","TrojanDropper:Win32/PhantomStar.A"]);
  DeviceInfo
  | extend DeviceName = tolower(DeviceName)
  | join kind=inner ( SecurityAlert
  | where ProviderName == "MDATP"
  | extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
  | extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)
  | where ThreatName in~ (Zinc_threats) or ThreatFamilyName in~ (Zinc_threats)
  | extend CompromisedEntity = tolower(CompromisedEntity)
  ) on $left.DeviceName == $right.CompromisedEntity
  | summarize by DisplayName, ThreatName, ThreatFamilyName, PublicIP, AlertSeverity, Description, tostring(LoggedOnUsers), DeviceId, TenantId , bin(TimeGenerated, 1d), CompromisedEntity, tostring(LoggedOnUsers), ProductName, Entities
  | extend HostName = tostring(split(CompromisedEntity, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(CompromisedEntity, '.'), 1, -1), '.'))  
queryFrequency: 1d
requiredDataConnectors:
- connectorId: MicrosoftThreatProtection
  dataTypes:
  - SecurityAlert
  - DeviceInfo
name: AV detections related to Zinc actors
severity: High
entityMappings:
- fieldMappings:
  - identifier: HostName
    columnName: HostName
  - identifier: DnsDomain
    columnName: DnsDomain
  entityType: Host
- fieldMappings:
  - identifier: Address
    columnName: PublicIP
  entityType: IP
version: 1.0.2
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Zinc Open Source/Analytic Rules/ZincOctober2022_AVHits_IOC.yaml
status: Available
id: 3705158d-e008-49c9-92dd-e538e1549090
tactics:
- Impact

ARM