FXSRESM.dll
Microsoft Fax Resource DLL file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real FXSRESM.dll?
Installed in
C:\Windows\system32\C:\Windows\SysWOW64\Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionMicrosoft Fax Resource DLL
2 known copies
10.0.19041.117 (WinBuild.160101.0800) · C:\Windows\system32\FXSRESM.dll · signed by Microsoft Windows
f08a81727caa28e325fbc62acd15a61b97dfc17486d1385fcc56ac7effc4906a10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\FXSRESM.dll · signed by Microsoft Windows
6156860809b9db4f8b54abf80e88ea8b18f0229631cd7aba5cfd69be8dd10e90From 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 FXSRESM.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.