ADSI-Cache File Creation By Uncommon Tool

Last updated on:

Applies to: Log360Log360 Cloud

About the rule

Rule Type

Standard

Rule Description

Detects the creation of an "Active Directory Schema Cache File" (.sch) file by an uncommon tool.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "File Created or Modified" AND ((FILENAME contains "\Local\Microsoft\Windows\SchCache" OR OBJECTNAME contains "\Local\Microsoft\Windows\SchCache") AND (FILENAME endswith ".sch" OR OBJECTNAME endswith ".sch")) AND ((PROCESSNAME notendswith ":\Program Files\Cylance\Desktop\CylanceSvc.exe,:\Windows\CCM\CcmExec.exe,:\windows\system32\dllhost.exe,:\Windows\system32\dsac.exe,:\Windows\system32\efsui.exe,:\windows\system32\mmc.exe,:\windows\system32\svchost.exe,:\Windows\System32\wbem\WmiPrvSE.exe,:\windows\system32\WindowsPowerShell\v1.0\powershell.exe" AND PROCESSNAME notcontains ":\Windows\ccmsetup\autoupgrade\ccmsetup,:\Program Files\SentinelOne\Sentinel Agent") AND ((PROCESSNAME notcontains ":\Program Files" OR PROCESSNAME notcontains "\Microsoft Office") OR PROCESSNAME notendswith "\OUTLOOK.EXE")) AND PROCESSNAME notendswith "\LANDesk\LDCLient\ldapwhoami.exe,:\Program Files\Citrix\Receiver StoreFront\Services\DefaultDomainServices\Citrix.DeliveryServices.DomainServices.ServiceHost.exe" select Action1.HOSTNAME,Action1.MESSAGE,Action1.USERNAME,Action1.DOMAIN,Action1.OBJECTNAME,Action1.FILENAME,Action1.PROCESSNAME,Action1.FILETYPE,Action1.ACCESSLIST

Detection

Execution Mode

realtime

Log Sources

Active Directory

Author

xknow @xknow_infosec, Tim Shelton