CmdID

CmdID / Files

updatepolicy.dll

Update Policy Reader file version info

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

Is it the real updatepolicy.dll?

file version info and known copies
Installed inC:\Windows\system32\
C:\Windows\SysWOW64\
Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionUpdate Policy Reader

2 known copies

10.0.19041.508 (WinBuild.160101.0800) · C:\Windows\SysWOW64\updatepolicy.dll · signed by Microsoft Windows

cf306c5d8e3519e91c64460fe1d6d05808d150658cc57568f27b71648b6e544d

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

934087dd1f0cf54d70b34410e473258b2c7f3f615484c4fa171c48e03dec64c7

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