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ONBttnIE.dll

Microsoft OneNote Internet Explorer Add-in file version info

Library on Windows 2 known copies with hashes

Is it the real ONBttnIE.dll?

file version info and known copies
Installed inC:\Program Files (x86)\Microsoft Office\root\Office16\
C:\Program Files (x86)\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Office\Office16\
Signed byMicrosoft Corporation
ProductMicrosoft OneNote, Microsoft Corporation
DescriptionMicrosoft OneNote Internet Explorer Add-in

2 known copies

16.0.12527.20470 · C:\Program Files (x86)\Microsoft Office\root\Office16\ONBttnIE.dll · signed by Microsoft Corporation

a521a144ed4fa0e900b0a320ba268cbece1eafb6db8ebf4d3b9794bb634441a9

16.0.12527.20470 · C:\Program Files (x86)\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Office\Office16\ONBttnIE.dll · signed by Microsoft Corporation

b772166fed9df7d30c3aa7fa76c73d815f8e855d3c03b0dadefe17dafb2623ee

From the file’s version info and the copies recorded by xCyclopedia (MIT). A copy in another folder, signed by someone else or with another hash is not necessarily malicious, but it is worth a closer look. In Ceplin, "<sha256>".whatis() says which known copy a hash is.