CmdID

CmdID / Files

ifmon.dll

IF Monitor DLL file version info

Library on Windows 2 known copies with hashes 1 Sigma rule names it

Is it the real ifmon.dll?

file version info and known copies
Installed inC:\Windows\system32\
C:\Windows\SysWOW64\
Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionIF Monitor DLL

2 known copies

10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\ifmon.dll · signed by Microsoft Windows

abfc652f0e77b5bb9241f8b75bf60189b49608e0b453c478795caa982152b1ad

10.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\ifmon.dll · signed by Microsoft Windows

b818524eacaabf3de2a119419fc2b158425a0fa7723d120b49ebefa40f689858

From 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

Sigma names ifmon.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.