BCP47Langs.dll
BCP47 Language Classes file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real BCP47Langs.dll?
Original name
BCP47Lang.dll in the file’s header: a renamed copy still carries itInstalled in
C:\Windows\system32\C:\Windows\SysWOW64\Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionBCP47 Language Classes
2 known copies
10.0.19041.84 (WinBuild.160101.0800) · C:\Windows\system32\BCP47Langs.dll · signed by Microsoft Windows
e741d2045e892d234a6a0498cc4ba7166f206e666789b9427ac4796f79b4a9dd10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\BCP47Langs.dll · signed by Microsoft Windows
35be3ab56e9896b203da54c8ab0c10f08791944008d0475f4b2faf9277bdacb3From 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 BCP47Langs.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.