cryptnet.dll
Crypto Network Related API file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real cryptnet.dll?
Installed in
C:\Windows\system32\C:\Windows\SysWOW64\Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionCrypto Network Related API
2 known copies
10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\cryptnet.dll · signed by Microsoft Windows
75a12c7a3c37b0e5631a12d9b6f198561ba956bb93bf4daea0a6b0d9d9efc5c710.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\cryptnet.dll · signed by Microsoft Windows
8c47e170b0ad256334ddb34c74d74e10c47fdf3f2b18ae3017decd0b9e363a9bFrom 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 cryptnet.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.