userenv.dll
Userenv file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real userenv.dll?
Installed in
C:\Windows\system32\C:\Windows\SysWOW64\Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionUserenv
2 known copies
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\userenv.dll · signed by Microsoft Windows
aa31b667d7d742060117c1b409cd7c76d65a4e94aa20e6488f3185082910e4af10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\userenv.dll · signed by Microsoft Windows
af7ab9c5819489f89fa29784f1d08ae9de3281f0828c6ecdeb4c23c5eca6c605From 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.
What detects it
Sigma names userenv.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.