NapiNSP.dll
E-mail Naming Shim Provider file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real NapiNSP.dll?
Installed in
C:\Windows\system32\C:\Windows\SysWOW64\Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionE-mail Naming Shim Provider
2 known copies
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\NapiNSP.dll · signed by Microsoft Windows
0303f120bdf3dc6d48f1f154819a4e137e01c54c0e16cc5c07b4ffebc43ff80a10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\NapiNSP.dll · signed by Microsoft Windows
6c3a4f980505d09d37e9d1baf1e3ccadef77004c64e13901fda3ace8efb6db1aFrom 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 NapiNSP.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.