CmdID

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AppxAllUserStore.dll

AppX All User Store DLL file version info

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

Is it the real AppxAllUserStore.dll?

file version info and known copies
Installed inC:\Windows\system32\
C:\Windows\SysWOW64\
Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionAppX All User Store DLL

2 known copies

10.0.19041.488 (WinBuild.160101.0800) · C:\Windows\SysWOW64\AppxAllUserStore.dll · signed by Microsoft Windows

56ec0d7b827d99f429e73df2f8413eef1d9e05ec463e35565f1d1efa9ef74b58

10.0.19041.488 (WinBuild.160101.0800) · C:\Windows\system32\AppxAllUserStore.dll · signed by Microsoft Windows

c0ac0051ea72c718dcc0d249bbc92058cdc60cf5628bf14f7cf21834bddfc09a

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