CmdID

CmdID / Files

WinSync.dll

Synchronization Framework file version info

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

Is it the real WinSync.dll?

file version info and known copies
Installed inC:\Windows\system32\
C:\Windows\SysWOW64\
Signed byMicrosoft Windows
ProductMicrosoft Synchronization Framework, Microsoft Corporation
DescriptionSynchronization Framework

2 known copies

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

cfd73ce89e88c8efb209dac0734ebac14940656e0bc9ed91bc083956dba2310d

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

e5d3335e3c17d7e0da2a85dea0b1f8ec9ba3c98802e796154ddfb41d1f3bcfe2

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