cpuz_x64.sys
CPUID Driver file version info
Driver on Windows LOLDrivers vulnerable driver 1 Sigma rule names it
A known vulnerable driver
T1068Exploitation for Privilege Escalation
From LOLDrivers (Apache 2.0). A driver is known by its hash: a sample under another name is the same driver. In Ceplin, "<sha256>".whatis() says which sample a hash is.
Is it the real cpuz_x64.sys?
ProductWindows (R) Server 2003 DDK driver, Windows (R) Server 2003 DDK provider
DescriptionCPUID Driver
From the file’s version info, as 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.
What detects it
Sigma names cpuz_x64.sys in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.