Function at 0x4459a6
Capabilities:
Check os version

Disassembly:
mov eax, 0x47d91b
call fcn.0045381c
sub esp, 0xe4
cmp byte [0x4b4654], 0
push esi
mov esi, ecx
je 0x4459b2
xor al, al
jmp 0x445c61
push edi
mov ecx, esi
call fcn.004456ca
or dword [ebp - 0x1c], 0xffffffff
lea eax, [ebp - 0xf0]
xor edi, edi
push eax
mov dword [ebp - 0x14], edi
mov dword [ebp - 0xf0], 0x94
call dword [sym.imp.KERNEL32.dll_GetVersionExA]
cmp dword [ebp - 0xec], 5
je 0x4459f1
mov byte [0x4b4654], 1
xor al, al
jmp 0x445c60
mov eax, dword [ebp - 0xe8]
cmp eax, edi
je 0x445a00
cmp eax, 1
jne 0x4459e3
mov dword [0x4b4650], eax
mov byte [esi], 0
call fcn.0044518a
test eax, eax
je 0x445c40
lea eax, [ebp - 0x18]
push eax
call fcn.00445307
test al, al
pop ecx
je 0x445c40
push ebx
mov ebx, dword [ebp - 0x18]
cmp dword [ebx], 0
jle 0x445af7
lea eax, [ebx + 0x20]
mov dword [ebp - 0x10], eax
push dword [ebp - 0x10]
lea ecx, [ebp - 0x5c]
call fcn.00401790
and dword [ebp - 4], 0
push eax
lea eax, [ebp - 0x40]
push eax
call fcn.004455fa
pop ecx
pop ecx
push 0
push 1
lea ecx, [ebp - 0x5c]
mov byte [ebp - 4], 2
call fcn.00401c80
cmp dword [ebp - 0x28], 0x10
mov eax, dword [ebp - 0x3c]
jae 0x445a71
lea eax, [ebp - 0x3c]
push str.ntoskrnl.exe
push eax
call fcn.00461f00
test eax, eax
pop ecx
pop ecx
je 0x445ac1
cmp dword [ebp - 0x28], 0x10
mov eax, dword [ebp - 0x3c]
jae 0x445a8e
lea eax, [ebp - 0x3c]
push str.ntkrnlpa.exe
push eax
call fcn.00461f00
test eax, eax
pop ecx
pop ecx
je 0x445ac8
or dword [ebp - 4], 0xffffffff
push 0
push 1
lea ecx, [ebp - 0x40]
call fcn.00401c80
add dword [ebp - 0x10], 0x11c
inc edi
cmp edi, dword [ebx]
jl 0x445a3a
jmp 0x445af7
push str.ntoskrnl.exe
jmp 0x445acd
push str.ntkrnlpa.exe
lea ecx, [esi + 0x30]
call fcn.00401a80
imul edi, edi, 0x11c
mov eax, dword [edi + ebx + 0xc]
or dword [ebp - 4], 0xffffffff
push 0
sub eax, 0x80000000
lea ecx, [ebp - 0x40]
push 1
mov dword [esi + 0x4c], eax
call fcn.00401c80
push ebx
call fcn.00451464
cmp dword [esi + 0x44], 0
pop ecx
je 0x445c3f
cmp dword [esi + 0x48], 0x10
jb 0x445b13
mov eax, dword [esi + 0x34]
jmp 0x445b16
lea eax, [esi + 0x34]
push eax
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
mov edi, eax
test edi, edi
mov dword [ebp - 0x10], edi
je 0x445c3f
push str.KeServiceDescriptorTable
push edi
call fcn.00445056
mov edx, eax
xor ebx, ebx
cmp edx, ebx
pop ecx
pop ecx
je 0x445c36
push edi
call fcn.0044539f
cmp eax, ebx
pop ecx
mov dword [ebp - 0x18], eax
je 0x445c36
mov eax, dword [esi + 0x4c]
mov ecx, eax
sub ecx, dword [ebp - 0x18]
add eax, edx
push ebx
mov dword [esi + 0x2c], ecx
mov dword [ebp - 0x24], eax
mov edi, eax
mov dword [ebp - 0x20], 0x2000
call fcn.0044524e
cmp eax, 0xffffffff
pop ecx
mov dword [ebp - 0x1c], eax
je 0x445c36
push ebx
lea ecx, [ebp - 0x14]
push ecx
lea ecx, [ebp - 0x20]
push ecx
lea ecx, [ebp - 0x24]
push ecx
push eax
call fcn.004452a6
add esp, 0x14
test eax, eax
je 0x445c36
sub edi, dword [ebp - 0x24]
mov ecx, dword [ebp - 0x20]
mov eax, edi
sub ecx, eax
cmp ecx, 0xc
jb 0x445c36
mov ecx, dword [ebp - 0x14]
add eax, ecx
mov edi, dword [eax]
mov eax, dword [eax + 8]
push ecx
mov dword [esi + 0x24], eax
call fcn.004452fa
mov eax, dword [esi + 0x24]
cmp eax, 0x12c
pop ecx
mov dword [ebp - 0x14], ebx
jae 0x445c36
lea ecx, [esi + 4]
push ecx
push eax
push dword [ebp - 0x10]
call fcn.00445789
add esp, 0xc
test al, al
je 0x445c36
lea eax, [edi - 0x80000000]
mov edi, dword [sym.imp.KERNEL32.dll_IsBadReadPtr]
mov dword [esi + 0x28], eax
sub eax, dword [esi + 0x2c]
push 4
sub eax, dword [ebp - 0x18]
add eax, dword [ebp - 0x10]
mov ebx, eax
push ebx
call edi
test eax, eax
jne 0x445c36
mov eax, dword [esi + 0x24]
push 4
lea eax, [ebx + eax*4 - 4]
push eax
call edi
test eax, eax
jne 0x445c36
xor edi, edi
cmp dword [esi + 0x24], edi
jle 0x445c33
push ebx
lea ecx, [esi + 0x14]
call fcn.0044568a
inc edi
add ebx, 4
cmp edi, dword [esi + 0x24]
jl 0x445c21
mov byte [esi], 1
push dword [ebp - 0x10]
call dword [sym.imp.KERNEL32.dll_FreeLibrary]
pop ebx
cmp dword [ebp - 0x14], 0
je 0x445c4f
push dword [ebp - 0x14]
call fcn.004452fa
pop ecx
cmp dword [ebp - 0x1c], 0xffffffff
je 0x445c5e
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov al, byte [esi]
pop edi
mov ecx, dword [ebp - 0xc]
pop esi
mov dword fs:[0], ecx
leave
ret