Query: detect Detects suspicious files created via the OneNote application. This could indicate a potential malicious ".one"/".onepkg" in logs
Matching passage: Sigma rule: Detects suspicious files created via the OneNote application. This could indicate a potential malicious ".one"/".onepkg". Logsource: windows / file_event. Rule: title: Suspicious File Created Via OneNote Application id: fcc6d700-68d9-4241-9a1a-06874d621b06 status: test description: Detects suspicious files created via the OneNote application. This could indicate a potential malicious ".one"/".onepkg" file was executed as seen being used in malware activity in the wild references: - https://www.bleepingcomputer.com/news/security/hackers-now-use-microsoft-onenote-attachments-to-spread-malware/ - https://blog.osarmor.com/319/onenote-attachment-delivers-asyncrat-malware/ - https://twitter.com/MaD_c4t/status/1623414582382567424 - https://labs.withsecure.com/publications/detecting-onenote-abuse - https://www.trustedsec.com/blog/new-attacks-old-tricks-how-onenote-malware-is-evolving/ - https://app.any.run/tasks/17f2d378-6d11-4d6f-8340-954b04f35e83/ author: Nasreddine Bencherchali (Nextron Systems) date: 2023-02-09 modified: 2023-02-27 tags: - attack.stealth logsource: category: file_event product: windows detection: selection: Image|endswith: - \onenote.exe - \onenotem.exe - \onenoteim.exe TargetFilename|contains: \AppData\Local\Temp\OneNote\ TargetFilename|endswith: - .bat - .chm - .cmd - .dll - .exe - .hta - .htm - .html - .js - .lnk - .ps1 - .vbe - .vbs - .wsf condition: selection falsepositives: - False positives should be very low with the extensions list cited. Especially if you don't heavily utilize OneNote. - Occasional FPs might occur if OneNote is used internally to share different embedded documents level: high
Near-miss passage: Sigma rule: Detects execution of Advanced Installer MSIX Package Support Framework (PSF) components, specifically AI_STUBS executabl. Logsource: windows / process_creation. Rule: title: Windows MSIX Package Support Framework AI_STUBS Execution id: af5732ed-764e-489d-826d-0447c8b36242 status: experimental description: 'Detects execution of Advanced Installer MSIX Package Support Framework (PSF) components, specifically AI_STUBS executables with original filename ''popupwrapper.exe''. This activity may indicate malicious MSIX packages build with Advanced Installer leveraging the Package Support Framework to bypass application control restrictions. ' references: - https://redcanary.com/blog/threat-intelligence/msix-installers/ - https://redcanary.com/threat-detection-report/techniques/installer-packages/ - https://learn.microsoft.com/en-us/windows/msix/package/package-support-framework - https://www.splunk.com/en_us/blog/security/msix-weaponization-threat-detection-splunk.html author: Michael Haag, Swachchhanda Shrawan Poudel (Nextron Systems) date: 2025-11-03 tags: - attack.execution - attack.stealth - attack.defense-impairment - attack.t1218 - attack.t1553.005 - attack.t1204.002 logsource: category: process_creation product: windows detection: selection: Image|endswith: - \AI_STUBS\AiStubX64Elevated.exe - \AI_STUBS\AiStubX86Elevated.exe - \AI_STUBS\AiStubX64.exe - \AI_STUBS\AiStubX86.exe OriginalFileName: popupwrapper.exe condition: selection falsepositives: - Legitimate applications packaged with Advanced Installer using Package Support Framework level: low