Function at 0x420673
Capabilities:
Check os version

Disassembly:
mov eax, 0x439310
call fcn.0040edc0
sub esp, 0x54
and dword [ebp - 0x10], 0
push ebx
mov ebx, dword [ebp + 8]
push esi
push edi
cmp ebx, 0x111
mov edi, ecx
jne 0x4206af
push dword [ebp + 0x10]
mov eax, dword [edi]
push dword [ebp + 0xc]
call dword [eax + pe_nt_image_headers32]
test eax, eax
je 0x4207f5
jmp 0x420ac7
cmp ebx, 0x4e
jne 0x4206d7
mov eax, dword [ebp + 0x10]
cmp dword [eax], 0
je 0x4207f5
mov edx, dword [edi]
lea ecx, [ebp - 0x10]
push ecx
push eax
push dword [ebp + 0xc]
mov ecx, edi
call dword [edx + 0x84]
jmp 0x420aeb
mov esi, dword [ebp + 0x10]
cmp ebx, 6
jne 0x4206ef
push esi
call fcn.0041f6f4
push eax
push dword [ebp + 0xc]
push edi
call fcn.0041f922
cmp ebx, 0x20
jne 0x42070c
mov eax, esi
shr eax, 0x10
push eax
movsx eax, si
push eax
push edi
call fcn.0041f983
test eax, eax
jne 0x420ac7
mov eax, dword [edi]
mov ecx, edi
call dword [eax + 0x30]
push 7
mov dword [ebp - 0x14], eax
call fcn.00436f96
mov edx, dword [ebp - 0x14]
mov eax, ebx
mov ecx, 0x1ff
and eax, ecx
and edx, ecx
mov ecx, dword [ebp + 8]
xor eax, edx
lea eax, [eax + eax*2]
cmp ecx, dword [eax*4 + 0x44d1d8]
lea ebx, [eax*4 + 0x44d1d8]
mov eax, dword [ebp - 0x14]
jne 0x420772
cmp eax, dword [ebx + 8]
jne 0x420772
mov ebx, dword [ebx + 4]
push 7
mov dword [ebp + 0x10], ebx
call fcn.00437006
test ebx, ebx
je 0x4207f5
cmp dword [ebp + 8], 0xc000
jb 0x420815
jmp 0x420b01
test eax, eax
mov dword [ebx], ecx
mov dword [ebx + 8], eax
je 0x4207ea
jmp 0x420783
mov ecx, dword [ebp + 8]
mov eax, dword [ebp - 0x14]
mov edx, 0xc000
push 0
cmp ecx, edx
push 0
jae 0x4207a2
push ecx
push dword [eax + 4]
call fcn.004205f1
test eax, eax
mov dword [ebp + 0x10], eax
jne 0x420808
jmp 0x4207de
push edx
push dword [eax + 4]
call fcn.004205f1
test eax, eax
mov dword [ebp + 0x10], eax
je 0x4207de
jmp 0x4207b7
mov eax, dword [ebp + 0x10]
mov ecx, dword [eax + 0x10]
mov edx, dword [ebp + 8]
cmp dword [ecx], edx
je 0x420af4
push 0
push 0
add eax, 0x18
push 0xc000
push eax
call fcn.004205f1
test eax, eax
mov dword [ebp + 0x10], eax
jne 0x4207b4
mov eax, dword [ebp - 0x14]
mov eax, dword [eax]
test eax, eax
mov dword [ebp - 0x14], eax
jne 0x42077d
and dword [ebx + 4], 0
push 7
call fcn.00437006
xor eax, eax
mov ecx, dword [ebp - 0xc]
pop edi
pop esi
mov dword fs:[0], ecx
pop ebx
leave
ret 0x10
push 7
mov dword [ebx + 4], eax
call fcn.00437006
mov ebx, dword [ebp + 0x10]
mov ecx, dword [ebp + 0x10]
mov ebx, dword [ebx + 0x14]
cmp dword [ecx + 8], 0x1a
mov eax, dword [ecx + 0x10]
jne 0x420836
call dword [sym.imp.KERNEL32.dll_GetVersion]
mov ecx, dword [ebp + 0x10]
cmp al, 4
sbb eax, eax
and al, 0xf0
add eax, 0x2f
dec eax
cmp eax, 0x30
ja case.0x420840.38
jmp dword [eax*4 + 0x420b21]
push dword [ebp + 0xc]
call fcn.00428f35
push eax
jmp 0x42094b
push dword [ebp + 0xc]
jmp 0x42094b
push esi
push esi
call fcn.0041f6f4
jmp 0x420a7b
lea ecx, [ebp - 0x24]
call fcn.00428e81
mov eax, dword [esi + 4]
and dword [ebp - 4], 0
lea ecx, [ebp - 0x60]
mov dword [ebp - 0x20], eax
call fcn.0041f38b
mov eax, dword [esi]
mov esi, dword [esi + 8]
push eax
mov byte [ebp - 4], 1
mov dword [ebp - 0x44], eax
call fcn.0041f71c
test eax, eax
jne 0x4208b5
mov eax, dword [edi + 0x34]
test eax, eax
je 0x4208b2
push dword [ebp - 0x44]
lea ecx, [eax + 0x20]
call fcn.0041ee53
test eax, eax
je 0x4208b2
mov dword [ebp - 0x28], eax
lea eax, [ebp - 0x60]
push esi
push eax
lea eax, [ebp - 0x24]
mov ecx, edi
push eax
call ebx
and dword [ebp - 0x20], 0
and dword [ebp - 0x44], 0
and byte [ebp - 4], 0
lea ecx, [ebp - 0x60]
mov dword [ebp - 0x10], eax
call fcn.0041fdd5
or dword [ebp - 4], 0xffffffff
lea ecx, [ebp - 0x24]
jmp 0x42090d
lea ecx, [ebp - 0x24]
call fcn.00428e81
mov eax, dword [esi + 4]
push dword [esi + 8]
mov dword [ebp - 0x20], eax
lea eax, [ebp - 0x24]
push eax
mov ecx, edi
mov dword [ebp - 4], 2
call ebx
and dword [ebp - 0x20], 0
or dword [ebp - 4], 0xffffffff
mov dword [ebp - 0x10], eax
lea ecx, [ebp - 0x24]
call fcn.00428fb3
jmp case.0x420840.38
mov eax, dword [ebp + 0xc]
shr eax, 0x10
push eax
push esi
call fcn.0041f6f4
jmp 0x420961
mov eax, dword [ebp + 0xc]
shr eax, 0x10
push eax
movzx eax, word [ebp + 0xc]
jmp 0x420a7b
mov eax, esi
shr eax, 0x10
push eax
movsx eax, si
push eax
push dword [ebp + 0xc]
call fcn.0041f6f4
jmp 0x420966
push esi
mov ecx, edi
call ebx
jmp 0x420b0a
push esi
call fcn.00423d7b
push eax
mov eax, dword [ebp + 0xc]
shr eax, 0x10
push eax
movzx eax, word [ebp + 0xc]
push eax
mov ecx, edi
call ebx
jmp 0x420b0a
mov ecx, edi
call ebx
jmp case.0x420840.38
push dword [ebp + 0xc]
jmp 0x420a96
mov eax, esi
shr eax, 0x10
movsx eax, ax
push eax
movsx eax, si
jmp 0x420a25
mov eax, esi
shr eax, 0x10
push eax
movzx eax, si
jmp 0x420ab5
push dword [ebp + 0xc]
call fcn.0041f6f4
push eax
push esi
call fcn.0041f6f4
push eax
xor eax, eax
cmp dword [edi + 0x1c], esi
sete al
jmp 0x420aa8
push dword [ebp + 0xc]
call fcn.00428f35
jmp 0x4209f3
push dword [ebp + 0xc]
call fcn.00423d7b
jmp 0x4209f3
mov eax, esi
shr eax, 0x10
push eax
movzx eax, si
push eax
push dword [ebp + 0xc]
call fcn.00423d7b
jmp 0x420aa8
push dword [ebp + 0xc]
jmp 0x4209ee
push esi
call fcn.0041f6f4
push eax
jmp 0x420a96
mov eax, esi
shr eax, 0x10
push eax
movzx eax, si
jmp 0x420a0e
movsx eax, si
shr esi, 0x10
movsx ecx, si
push ecx
push eax
push dword [ebp + 0xc]
call fcn.0041f6f4
jmp 0x420aa8
push esi
push dword [ebp + 0xc]
call fcn.0041f6f4
push eax
jmp 0x420a8f
push esi
call fcn.0041f6f4
push eax
jmp 0x420a8c
mov eax, dword [ebp + 0xc]
shr eax, 0x10
push eax
push esi
call fcn.0041f6f4
jmp 0x420aa3
mov eax, dword [ebp + 0xc]
movsx edx, ax
shr eax, 0x10
cmp dword [ecx + 0x10], 0x1d
mov dword [ebp + 8], edx
movsx eax, ax
mov dword [ebp + 0xc], eax
jne 0x420a67
push esi
call fcn.0041f6f4
push eax
push dword [ebp + 0xc]
push dword [ebp + 8]
jmp 0x420ab9
push eax
push edx
jmp 0x420a8f
push esi
push dword [ebp + 0xc]
jmp 0x420a7c
movsx eax, si
shr esi, 0x10
movsx ecx, si
push ecx
push eax
mov ecx, edi
call ebx
jmp 0x420b0a
mov ecx, edi
call ebx
jmp 0x420b0a
push esi
push dword [ebp + 0xc]
mov ecx, edi
call ebx
jmp case.0x420840.38
push esi
mov ecx, edi
call ebx
jmp case.0x420840.38
mov eax, dword [ebp + 0xc]
push esi
shr eax, 0x10
push eax
movzx eax, word [ebp + 0xc]
push eax
jmp 0x420ab9
movsx eax, si
shr esi, 0x10
movsx ecx, si
push ecx
push eax
push dword [ebp + 0xc]
mov ecx, edi
call ebx
jmp case.0x420840.38
push esi
mov ecx, edi
push dword [ebp + 0xc]
call ebx
mov dword [ebp - 0x10], 1
jmp case.0x420840.38
movzx eax, si
shr esi, 0x10
push esi
push eax
mov eax, dword [ebp + 0xc]
mov ecx, edi
shr eax, 0x10
push eax
movzx eax, word [ebp + 0xc]
push eax
call ebx
mov dword [ebp - 0x10], eax
test eax, eax
jne case.0x420840.38
jmp 0x4207f5
push 7
mov dword [ebx + 4], eax
call fcn.00437006
mov ebx, dword [ebp + 0x10]
push esi
mov ecx, edi
push dword [ebp + 0xc]
call dword [ebx + 0x14]
mov dword [ebp - 0x10], eax
mov eax, dword [ebp + 0x14]
test eax, eax
je 0x420b19
mov ecx, dword [ebp - 0x10]
mov dword [eax], ecx
push 1
pop eax
jmp 0x4207f7