sapi_onecore.dll
Speech API file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real sapi_onecore.dll?
sapi.dll in the file’s header: a renamed copy still carries itC:\Windows\system32\Speech_OneCore\common\C:\Windows\SysWOW64\Speech_OneCore\Common\2 known copies
5.3.19041.423 (WinBuild.160101.0800) · C:\Windows\SysWOW64\Speech_OneCore\Common\sapi_onecore.dll · signed by Microsoft Windows
0edf972ea550cd8ef177904152aab32f61f45729b99f3449a45e1c9293a7892f5.3.19041.423 (WinBuild.160101.0800) · C:\Windows\system32\Speech_OneCore\common\sapi_onecore.dll · signed by Microsoft Windows
cbbe3aec5fb911682afa624162a42868bc7ae4220c6f18343fb79df003d8bae6From 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 sapi_onecore.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.