physmem.sys
Physical Memory Access Driver file version info
Driver on Windows LOLDrivers vulnerable driver 3 Sigma rules name it
A known vulnerable driver
T1068Exploitation for Privilege Escalation
1 known sample
1.0.0.0 · its entry
c299063e3eae8ddc15839767e83b9808fd43418dc5a1af7e4f44b97ba53fbd3dFrom 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 physmem.sys?
ProductPhysical Memory Access Driver, Hilscher Gesellschaft für Systemaoutomation mbH
DescriptionPhysical Memory Access 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 physmem.sys in 3 rules in all, for every kind of event; this is the process creation rule CmdID evaluates.