CmdID / Files

System.IO.Compression.FileSystem.dll

System.IO.Compression.FileSystem.dll file version info

Library on Windows 1 known copy with hashes

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

file version info and known copies

Installed inC:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.8\

Signed byMicrosoft Corporation

ProductMicrosoft .NET Framework, Microsoft Corporation

DescriptionSystem.IO.Compression.FileSystem.dll

1 known copy

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

19cf9cc66791ec6693c6be579980d758abdde2b4f387b238c531ccabd6a7d6d6

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.