Ntquerywnfstatedata Ntdlldll Better -

, a hidden publish-subscribe system used by Windows since version 8

: Historically targeted for local privilege escalation exploits (e.g., CVE-2021-31956 ). ntquerywnfstatedata ntdlldll better

if (status == 0) ULONG connectivity = 0; ULONG returned = 0; status = NtQueryWnfStateData(hState, NULL, 0, &connectivity, sizeof(connectivity), &returned); if (status == 0) printf("Current network connectivity state: %lu\n", connectivity); // 0 = Unknown, 1 = No connectivity, 2 = Local, 3 = Internet , a hidden publish-subscribe system used by Windows