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System.Data.DataSetExtensions.dll

.NET Framework file version info

Library on Windows 1 known copy with hashes

Is it the real System.Data.DataSetExtensions.dll?

file version info and known copies
Original namesystem.data.entity.dll in the file’s header: a renamed copy still carries it
Installed inC:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.8\
Signed byMicrosoft Corporation
ProductMicrosoft .NET Framework, Microsoft Corporation
Description.NET Framework

1 known copy

4.8.4084.0 built by: NET48REL1 · C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.8\System.Data.DataSetExtensions.dll · signed by Microsoft Corporation

9a7c83761191ecb06472a5c582f7705eaa923a955544ee9a2b260c003ad7f14a

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.