Windows Base

Windows.Sigma.Base Model #

This model is designed for triage of dead disk, or file based live analysis. The rules that use this model will be evaluated once on all events.

After all relevant rules are evaluated, the collection is complete.

Log Sources #

Following is a list of recognized log sources.

Log SourceDesc
*/windows/applicationThis Log Source generates events from the Application Channel.
*/windows/applockerThis Log Source generates combined events from the Windows `AppLocker service`.
*/windows/appmodel-runtimeThis Log Source generates combined events from the Windows `AppModel Runtime`.
*/windows/appxdeployment-server
*/windows/appxpackaging-om
*/windows/bits-clientThis Log Source generates combined events from the Windows Bits Client service.
*/windows/capi2
*/windows/certificateservicesclient-lifecycle-system
*/windows/codeintegrity-operational
*/windows/diagnosis-scripted
*/windows/dns-client
*/windows/dns-server
*/windows/dns-server-analytic
*/windows/driver-framework
*/windows/firewall-as
*/windows/ldap_debug
*/windows/lsa-server
*/windows/microsoft-servicebus-client
*/windows/msexchange-management
*/windows/ntlm
*/windows/openssh
*/windows/powershell
*/windows/powershell-classic
*/windows/security
*/windows/security-mitigations
*/windows/shell-core
*/windows/smbclient-security
*/windows/sysmon
*/windows/system
*/windows/taskscheduler
*/windows/terminalservices-localsessionmanager
*/windows/vhdmp
*/windows/windefend
*/windows/wmi
process_creation/windows/*
ps_classic_provider_start/windows/*
ps_classic_start/windows/*
ps_module/windows/*
ps_script/windows/*
registry_add/windows/*
registry_event/windows/*
registry_set/windows/*
antivirus/windows/windefend

Field Mappings #

The following field mappings can be used to access fields within the event. Note that it is also possible to access the fields directly (e.g. EventData.AccessMask)

View all Field Mappings

*/windows/application #

This Log Source generates events from the Application Channel.

These are usually stored in the file C:\Windows\System32\WinEvt\Logs\Application.evtx

The channel stores a wide variety of system events from multiple services.

Details

*/windows/applocker #

This Log Source generates combined events from the Windows AppLocker service.

Events are usually stored in the files:

  • C:\Windows\System32\WinEvt\Logs\Microsoft-Windows-AppLocker%4MSI and Script.evtx
  • C:\Windows\System32\WinEvt\Logs\Microsoft-Windows-AppLocker%4EXE and DLL.evtx
  • C:\Windows\System32\WinEvt\Logs\Microsoft-Windows-AppLocker%4Packaged app-Deployment.evtx
  • C:\Windows\System32\WinEvt\Logs\Microsoft-Windows-AppLocker%4Packaged app-Execution.evtx
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*/windows/appmodel-runtime #

This Log Source generates combined events from the Windows AppModel Runtime.

Events are usually stored in the files:

  • C:\Windows\System32\WinEvt\Logs\Microsoft-Windows-AppModel-Runtime%4Admin.evtx
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*/windows/appxdeployment-server #

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*/windows/appxpackaging-om #

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*/windows/bits-client #

This Log Source generates combined events from the Windows Bits Client service.

Events are usually stored in the files:

  • C:\Windows\System32\WinEvt\Logs\Microsoft-Windows-Bits-Client%4Operational.evtx

The BITS service is used to download files and it is often misused by threat actors to download malicious payloads.

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*/windows/capi2 #

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*/windows/certificateservicesclient-lifecycle-system #

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*/windows/codeintegrity-operational #

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*/windows/diagnosis-scripted #

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*/windows/dns-client #

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*/windows/dns-server #

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*/windows/dns-server-analytic #

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*/windows/driver-framework #

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*/windows/firewall-as #

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*/windows/ldap_debug #

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*/windows/lsa-server #

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*/windows/microsoft-servicebus-client #

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*/windows/msexchange-management #

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*/windows/ntlm #

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*/windows/openssh #

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*/windows/powershell #

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*/windows/powershell-classic #

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*/windows/security #

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*/windows/security-mitigations #

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*/windows/shell-core #

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*/windows/smbclient-security #

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*/windows/sysmon #

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*/windows/system #

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*/windows/taskscheduler #

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*/windows/terminalservices-localsessionmanager #

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*/windows/vhdmp #

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*/windows/windefend #

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*/windows/wmi #

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process_creation/windows/* #

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ps_classic_provider_start/windows/* #

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ps_classic_start/windows/* #

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ps_module/windows/* #

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ps_script/windows/* #

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registry_add/windows/* #

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registry_event/windows/* #

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registry_set/windows/* #

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antivirus/windows/windefend #

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