{"id":"0b0cd537-fc77-4e6e-a973-e53495c1083d","title":"Renamed Office Binary Execution","description":"Detects the execution of a renamed office binary","author":"Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"high","date":"2022-12-20","modified":"2025-12-09","tags":["attack.stealth","attack.t1036.003"],"technique_ids":["T1036.003"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://infosec.exchange/@sbousseaden/109542254124022664"],"source_path":"rules/windows/process_creation/proc_creation_win_renamed_office_processes.yml","source_sha256":"e0d13615ffcba73e255afd40c6e1ab1954feef473d9db237ed2a135301903497","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_renamed_office_processes.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Renamed Office Binary Execution\nid: 0b0cd537-fc77-4e6e-a973-e53495c1083d\nstatus: test\ndescription: Detects the execution of a renamed office binary\nreferences:\n    - https://infosec.exchange/@sbousseaden/109542254124022664\nauthor: Nasreddine Bencherchali (Nextron Systems)\ndate: 2022-12-20\nmodified: 2025-12-09\ntags:\n    - attack.stealth\n    - attack.t1036.003\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        - OriginalFileName:\n              - 'Excel.exe'\n              - 'MSACCESS.EXE'\n              - 'MSPUB.EXE'\n              - 'OneNote.exe'\n              - 'OneNoteM.exe'\n              - 'OUTLOOK.EXE'\n              - 'POWERPNT.EXE'\n              - 'WinWord.exe'\n              - 'Olk.exe'\n        - Description:\n              - 'Microsoft Access'\n              - 'Microsoft Excel'\n              - 'Microsoft OneNote'\n              - 'Microsoft Outlook'\n              - 'Microsoft PowerPoint'\n              - 'Microsoft Publisher'\n              - 'Microsoft Word'\n              - 'Sent to OneNote Tool'\n    filter_main_legit_names:\n        Image|endswith:\n            - '\\EXCEL.exe'\n            - '\\excelcnv.exe'\n            - '\\MSACCESS.exe'\n            - '\\MSPUB.EXE'\n            - '\\ONENOTE.EXE'\n            - '\\ONENOTEM.EXE'\n            - '\\OUTLOOK.EXE'\n            - '\\POWERPNT.EXE'\n            - '\\WINWORD.exe'\n            - '\\OLK.EXE'\n    condition: selection and not 1 of filter_main_*\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1036.003","id":"T1036.003","name":"Rename Legitimate Utilities","page":"techniques/enterprise/T1036.003/"}],"data_path":"data/detection-rules/0b0cd537-fc77-4e6e-a973-e53495c1083d.json","kind":"sigma"}