cmpbk32.dll
Microsoft Connection Manager Phonebook file version info
Library on Windows 2 known copies with hashes 1 Sigma rule names it
Is it the real cmpbk32.dll?
Installed in
C:\Windows\system32\C:\Windows\SysWOW64\Signed byMicrosoft Windows
ProductMicrosoft(R) Connection Manager, Microsoft Corporation
DescriptionMicrosoft Connection Manager Phonebook
2 known copies
7.2.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\cmpbk32.dll · signed by Microsoft Windows
967d7b8bf5b4644553af34ea53f8184dcb414e2a7fdad2e3ac4e9e2c718c28037.2.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\cmpbk32.dll · signed by Microsoft Windows
a710718720d40b8116e44d78e1b9c8a2f078d27a0bd941e8aa34863e5ee409f7From 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 cmpbk32.dll in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.