Phymemx64.sys
Driver on Windows LOLDrivers vulnerable driver 1 Sigma rule names it
A known vulnerable driver
T1068Exploitation for Privilege Escalation
2 known samples
19a212e6fc324f4cb9ee5eba60f5c1fc0191799a4432265cbeaa3307c76a7fc088df37ede18bea511f1782c1a6c4915690b29591cf2c1bf5f52201fbbb4fa2b9From 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.
What detects it
Sigma names Phymemx64.sys in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.