CmdID

CmdID / Files

System.IO.FileSystem.dll

System.IO.FileSystem file version info

Library on Windows 1 known copy with hashes

Is it the real System.IO.FileSystem.dll?

file version info and known copies
Installed inC:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.8\Facades\
Signed byMicrosoft Corporation
ProductMicrosoft .NET Framework, Microsoft Corporation
DescriptionSystem.IO.FileSystem

1 known copy

4.8.4084.0 · C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.8\Facades\System.IO.FileSystem.dll · signed by Microsoft Corporation

3ba97e0e0911afe9e0de0b5ace0a921f7e92c8efbc2e195fc0e90a5672c79628

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.