Query: Sigma YAML for windows / registry_set
Matching passage: Sigma rule: Detects modification of autostart extensibility point (ASEP) in registry. Adversaries may modify these keys to execute m. Logsource: windows / registry_set. Rule: title: Office Autorun Keys Modification id: baecf8fb-edbf-429f-9ade-31fc3f22b970 related: - id: 17f878b8-9968-4578-b814-c4217fc5768c type: obsolete status: test description: 'Detects modification of autostart extensibility point (ASEP) in registry. Adversaries may modify these keys to execute malicious code when Office files are opened. There are various legitimate add-ins that also use these keys and this filter list might not be exhaustive. Thus, it is recommended to review and tune filters for your environment to reduce false positives before deploying to production. ' references: - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.001/T1547.001.md - https://learn.microsoft.com/en-us/sysinternals/downloads/autoruns - https://gist.github.com/GlebSukhodolskiy/0fc5fa5f482903064b448890db1eaf9d author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split) date: 2019-10-25 modified: 2026-01-09 tags: - attack.privilege-escalation - attack.persistence - attack.t1547.001 logsource: category: registry_set product: windows detection: selection_office_root: TargetObject|contains: - \Software\Wow6432Node\Microsoft\Office - \Software\Microsoft\Office selection_office_details: TargetObject|contains: - \Word\Addins - \PowerPoint\Addins - \Outlook\Addins - \Onenote\Addins - \Excel\Addins - \Access\Addins - test\Special\Perf filter_main_empty: Details: (Empty) filter_main_null: Details: null filter_main_known_addins: Image|startswith: - C:\Program Files\Microsoft Office\ - C:\Program Files (x86)\Microsoft Office\ - C:\PROGRA~2\MICROS~2\Office - C:\Windows\System32\msiexec.exe - C:\Windows\SysWOW64\msiexec.exe - C:\Windows\System32\regsvr32.exe - 'C:\Windows\SysWOW64\regsvr32.exe ' TargetObject|contains: - \Excel\Addins\AdHocReportingExcelClientLib.AdHocReportingExcelClientAddIn.1\ - \Excel\Addins\ExcelPlugInShell.PowerMapConnect\ - \Excel\Addins\NativeShim\ - \Excel\Addins\NativeShim.InquireConnector.1\ - \Excel\Addins\PowerPivotExcelClientAddIn.NativeEntry.1\ - \Outlook\AddIns\AccessAddin.DC\ - \Outlook\AddIns\ColleagueImport.ColleagueImportAddin\ - \Outlook\AddIns\EvernoteCC.EvernoteContactConnector\ - \Outlook\AddIns\EvernoteOLRD.Connect\ - \Outlook\Addins\\OneNote.OutlookAddin - \Outlook\Addins\DriveFSExtensionLib.Connect\ - \Outlook\Addins\GoogleAppsSync.Connect\ - \Outlook\Addins\Microsoft.VbaAddinForOutlook.1\ - \Outlook\Addins\OcOffice.OcFo
Near-miss passage: Sigma rule: Detects the image load of vss_ps.dll by uncommon executables. This DLL is used by the Volume Shadow Copy Service (VSS) t. Logsource: windows / image_load. Rule: title: Suspicious Volume Shadow Copy VSS_PS.dll Load id: 333cdbe8-27bb-4246-bf82-b41a0dca4b70 related: - id: 48bfd177-7cf2-412b-ad77-baf923489e82 type: similar - id: 37774c23-25a1-4adb-bb6d-8bb9fd59c0f8 type: similar status: test description: 'Detects the image load of vss_ps.dll by uncommon executables. This DLL is used by the Volume Shadow Copy Service (VSS) to manage shadow copies of files and volumes. It is often abused by attackers to delete or manipulate shadow copies, which can hinder forensic investigations and data recovery efforts. The fact that it is loaded by processes that are not typically associated with VSS operations can indicate suspicious activity. ' references: - https://www.virustotal.com/gui/file/ba88ca45589fae0139a40ca27738a8fc2dfbe1be5a64a9558f4e0f52b35c5add - https://twitter.com/am0nsec/status/1412232114980982787 author: Markus Neis, @markus_neis date: 2021-07-07 modified: 2025-07-11 tags: - attack.impact - attack.t1490 logsource: category: image_load product: windows detection: selection: ImageLoaded|endswith: \vss_ps.dll filter_main_legit: Image|startswith: C:\Windows\ Image|endswith: - \clussvc.exe - \dismhost.exe - \dllhost.exe - \inetsrv\appcmd.exe - \inetsrv\iissetup.exe - \msiexec.exe - \rundll32.exe - \searchindexer.exe - \srtasks.exe - \svchost.exe - \System32\SystemPropertiesAdvanced.exe - \taskhostw.exe - \thor.exe - \thor64.exe - \tiworker.exe - \vssvc.exe - \vssadmin.exe - \WmiPrvSE.exe - \wsmprovhost.exe filter_main_update: CommandLine|startswith: C:\$WinREAgent\Scratch\ CommandLine|contains: \dismhost.exe { filter_main_image_null: Image: null filter_optional_programfiles: Image|startswith: - C:\Program Files\ - C:\Program Files (x86)\ condition: selection and not 1 of filter_main_* and not 1 of filter_optional_* falsepositives: - Unknown level: high