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efsext.dll

EFSEXT.DLL file version info

Library on Windows 2 known copies with hashes

Is it the real efsext.dll?

file version info and known copies
Installed inC:\Windows\system32\
C:\Windows\SysWOW64\
Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionEFSEXT.DLL

2 known copies

10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\efsext.dll · signed by Microsoft Windows

3c572652582f0cf58eb42a42d491f83864fe3d6431abae04504265eb52f32146

10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\efsext.dll · signed by Microsoft Windows

8f912550f884f09679df073701bbb827f149bdc2e21e98d0202ff3a5ba7b2710

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.