CmdID

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profapi.dll

User Profile Basic API file version info

Library on Windows 2 known copies with hashes 2 Sigma rules name it

Is it the real profapi.dll?

file version info and known copies
Installed inC:\Windows\system32\
C:\Windows\SysWOW64\
Signed byMicrosoft Windows
ProductMicrosoft Windows Operating System, Microsoft Corporation
DescriptionUser Profile Basic API

2 known copies

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

b153cb86921d2a69501c442308bb6c5e63fad37181e90f63f867f66b7aee03b5

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

b35370e5c957fa0fb0bb3379a11f296e1f859f898c74a8308ab671cbf576bb4d

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 profapi.dll in 2 rules, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.