Infoblox - TI - CommonSecurityLog Match Found - MalwareC2

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Id	5b0864a9-4577-4087-b9fa-de3e14a8a999
Rulename	Infoblox - TI - CommonSecurityLog Match Found - MalwareC2
Description	CommonSecurityLog (CEF) MalwareC2/MalwareC2DGA match found in your Infoblox TIDE Threat Intelligence. Customize query count, scheduling, responses and more. Modify data sources, types and threat properties as desired.
Severity	Medium
Tactics	Impact
Techniques	T1498 T1565
Required data connectors	CefAma ThreatIntelligence
Kind	Scheduled
Query frequency	1h
Query period	14d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-TI-CommonSecurityLogMatchFound-MalwareC2.yaml
Version	1.0.3
Arm template	5b0864a9-4577-4087-b9fa-de3e14a8a999.json

KQL

let dt_lookBack = 1h;
let ioc_lookBack = 14d;
let TI = ThreatIntelligenceIndicator
| where TimeGenerated >= ago(ioc_lookBack)
| summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by IndicatorId
| where Active == true and ExpirationDateTime > now()  
| where Description has_cs "Infoblox"
| where Description has_cs "MalwareC2"
| where isnotempty(DomainName)
;
let Data = CommonSecurityLog
| extend HitTime = TimeGenerated
| where TimeGenerated >= ago(dt_lookBack)
| where isnotempty(DestinationDnsDomain)
//Remove trailing period at end of domain
| extend DestinationDnsDomain = trim_end(@"\.$", DestinationDnsDomain)
;
TI | join kind=innerunique Data on $left.DomainName == $right.DestinationDnsDomain
| where HitTime >= TimeGenerated and HitTime < ExpirationDateTime
| project LatestIndicatorTime, HitTime, DeviceEventClassID, DestinationDnsDomain, DeviceAction, SourceIP, DeviceName, SourceMACAddress, SourceUserName, AdditionalExtensions, 
AdditionalInformation, Description, ThreatType, TrafficLightProtocolLevel, Type, ConfidenceScore, ExpirationDateTime, SourceSystem, Action, IndicatorId, ExternalIndicatorId, Tags

YAML

description: |
    'CommonSecurityLog (CEF) MalwareC2/MalwareC2DGA match found in your Infoblox TIDE Threat Intelligence. Customize query count, scheduling, responses and more. Modify data sources, types and threat properties as desired.'
kind: Scheduled
tactics:
- Impact
requiredDataConnectors:
- connectorId: ThreatIntelligence
  dataTypes:
  - ThreatIntelligenceIndicator
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
incidentConfiguration:
  createIncident: true
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Infoblox Cloud Data Connector/Analytic Rules/Infoblox-TI-CommonSecurityLogMatchFound-MalwareC2.yaml
severity: Medium
name: Infoblox - TI - CommonSecurityLog Match Found - MalwareC2
customDetails:
  SourceMACAddress: SourceMACAddress
triggerThreshold: 0
queryPeriod: 14d
query: |
  let dt_lookBack = 1h;
  let ioc_lookBack = 14d;
  let TI = ThreatIntelligenceIndicator
  | where TimeGenerated >= ago(ioc_lookBack)
  | summarize LatestIndicatorTime = arg_max(TimeGenerated, *) by IndicatorId
  | where Active == true and ExpirationDateTime > now()  
  | where Description has_cs "Infoblox"
  | where Description has_cs "MalwareC2"
  | where isnotempty(DomainName)
  ;
  let Data = CommonSecurityLog
  | extend HitTime = TimeGenerated
  | where TimeGenerated >= ago(dt_lookBack)
  | where isnotempty(DestinationDnsDomain)
  //Remove trailing period at end of domain
  | extend DestinationDnsDomain = trim_end(@"\.$", DestinationDnsDomain)
  ;
  TI | join kind=innerunique Data on $left.DomainName == $right.DestinationDnsDomain
  | where HitTime >= TimeGenerated and HitTime < ExpirationDateTime
  | project LatestIndicatorTime, HitTime, DeviceEventClassID, DestinationDnsDomain, DeviceAction, SourceIP, DeviceName, SourceMACAddress, SourceUserName, AdditionalExtensions, 
  AdditionalInformation, Description, ThreatType, TrafficLightProtocolLevel, Type, ConfidenceScore, ExpirationDateTime, SourceSystem, Action, IndicatorId, ExternalIndicatorId, Tags  
relevantTechniques:
- T1498
- T1565
id: 5b0864a9-4577-4087-b9fa-de3e14a8a999
queryFrequency: 1h
status: Available
version: 1.0.3
triggerOperator: gt
eventGroupingSettings:
  aggregationKind: SingleAlert
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: SourceIP
    identifier: Address
- entityType: Host
  fieldMappings:
  - columnName: DeviceName
    identifier: HostName
  - columnName: SourceUserName
    identifier: FullName
- entityType: DNS
  fieldMappings:
  - columnName: DestinationDnsDomain
    identifier: DomainName

ARM