mswsock.dll
Microsoft Windows Sockets 2.0 Service Provider file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real mswsock.dll?
C:\Windows\system32\C:\Windows\SysWOW64\2 known copies
10.0.19041.423 (WinBuild.160101.0800) · C:\Windows\SysWOW64\mswsock.dll · signed by Microsoft Windows
e0f01dd26a8b27592142b202758f1ddbe390c39cedb59db2e425df5ebb2e59e410.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\mswsock.dll · signed by Microsoft Windows
09bd659afe986b56f54f33783f1a58df60a12976d7b23061e3b84bb463623e67From 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 mswsock.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.