Nt(Zw)QuerySystemEnvironmentVariable() equivalent for KernelMode???

Hi everyone,

OK, undocumented Nt(Zw)QuerySystemEnvironmentVariable() exported by
ntdll.dll is accessable from UserMode only, HalGetEnvironmentValue seems to
check for “LastKnownGood” string and do some I/O port reads/writes (IDA
disassembler told this)… So, how to read “USERNAME” (for example)
environment variable from KernelMode driver? Any ideas?

Thanks for help,
Anton


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