Function at 0x4257cf
Capabilities:
Check os version

Disassembly:
mov eax, 0x4452d4
call fcn.004115c0
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 0x42580b
push dword [ebp + 0x10]
mov eax, dword [edi]
push dword [ebp + 0xc]
call dword [eax + pe_nt_image_headers32]
test eax, eax
je 0x425951
jmp 0x425c23
cmp ebx, 0x4e
jne 0x425833
mov eax, dword [ebp + 0x10]
cmp dword [eax], 0
je 0x425951
mov edx, dword [edi]
lea ecx, [ebp - 0x10]
push ecx
push eax
push dword [ebp + 0xc]
mov ecx, edi
call dword [edx + 0x84]
jmp 0x425c47
mov esi, dword [ebp + 0x10]
cmp ebx, 6
jne 0x42584b
push esi
call fcn.004248a4
push eax
push dword [ebp + 0xc]
push edi
call fcn.00424ad2
cmp ebx, 0x20
jne 0x425868
mov eax, esi
shr eax, 0x10
push eax
movsx eax, si
push eax
push edi
call fcn.00424b33
test eax, eax
jne 0x425c23
mov eax, dword [edi]
mov ecx, edi
call dword [eax + 0x30]
push 7
mov dword [ebp - 0x14], eax
call fcn.0043e144
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 + 0x45c2c0]
lea ebx, [eax*4 + 0x45c2c0]
mov eax, dword [ebp - 0x14]
jne 0x4258ce
cmp eax, dword [ebx + 8]
jne 0x4258ce
mov ebx, dword [ebx + 4]
push 7
mov dword [ebp + 0x10], ebx
call fcn.0043e1b4
test ebx, ebx
je 0x425951
cmp dword [ebp + 8], 0xc000
jb 0x425971
jmp 0x425c5d
test eax, eax
mov dword [ebx], ecx
mov dword [ebx + 8], eax
je 0x425946
jmp 0x4258df
mov ecx, dword [ebp + 8]
mov eax, dword [ebp - 0x14]
mov edx, 0xc000
push 0
cmp ecx, edx
push 0
jae 0x4258fe
push ecx
push dword [eax + 4]
call fcn.0042574d
test eax, eax
mov dword [ebp + 0x10], eax
jne 0x425964
jmp 0x42593a
push edx
push dword [eax + 4]
call fcn.0042574d
test eax, eax
mov dword [ebp + 0x10], eax
je 0x42593a
jmp 0x425913
mov eax, dword [ebp + 0x10]
mov ecx, dword [eax + 0x10]
mov edx, dword [ebp + 8]
cmp dword [ecx], edx
je 0x425c50
push 0
push 0
add eax, 0x18
push 0xc000
push eax
call fcn.0042574d
test eax, eax
mov dword [ebp + 0x10], eax
jne 0x425910
mov eax, dword [ebp - 0x14]
mov eax, dword [eax]
test eax, eax
mov dword [ebp - 0x14], eax
jne 0x4258d9
and dword [ebx + 4], 0
push 7
call fcn.0043e1b4
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.0043e1b4
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 0x425992
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.0x42599c.38
jmp dword [eax*4 + 0x425c7d]
push dword [ebp + 0xc]
call fcn.0042acfc
push eax
jmp 0x425aa7
push dword [ebp + 0xc]
jmp 0x425aa7
push esi
push esi
call fcn.004248a4
jmp 0x425bd7
lea ecx, [ebp - 0x24]
call fcn.0042ac48
mov eax, dword [esi + 4]
and dword [ebp - 4], 0
lea ecx, [ebp - 0x60]
mov dword [ebp - 0x20], eax
call fcn.0042453b
mov eax, dword [esi]
mov esi, dword [esi + 8]
push eax
mov byte [ebp - 4], 1
mov dword [ebp - 0x44], eax
call fcn.004248cc
test eax, eax
jne 0x425a11
mov eax, dword [edi + 0x34]
test eax, eax
je 0x425a0e
push dword [ebp - 0x44]
lea ecx, [eax + 0x20]
call fcn.00422d36
test eax, eax
je 0x425a0e
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.00424f85
or dword [ebp - 4], 0xffffffff
lea ecx, [ebp - 0x24]
jmp 0x425a69
lea ecx, [ebp - 0x24]
call fcn.0042ac48
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.0042ad90
jmp case.0x42599c.38
mov eax, dword [ebp + 0xc]
shr eax, 0x10
push eax
push esi
call fcn.004248a4
jmp 0x425abd
mov eax, dword [ebp + 0xc]
shr eax, 0x10
push eax
movzx eax, word [ebp + 0xc]
jmp 0x425bd7
mov eax, esi
shr eax, 0x10
push eax
movsx eax, si
push eax
push dword [ebp + 0xc]
call fcn.004248a4
jmp 0x425ac2
push esi
mov ecx, edi
call ebx
jmp 0x425c66
push esi
call fcn.0042a042
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 0x425c66
mov ecx, edi
call ebx
jmp case.0x42599c.38
push dword [ebp + 0xc]
jmp 0x425bf2
mov eax, esi
shr eax, 0x10
movsx eax, ax
push eax
movsx eax, si
jmp 0x425b81
mov eax, esi
shr eax, 0x10
push eax
movzx eax, si
jmp 0x425c11
push dword [ebp + 0xc]
call fcn.004248a4
push eax
push esi
call fcn.004248a4
push eax
xor eax, eax
cmp dword [edi + 0x1c], esi
sete al
jmp 0x425c04
push dword [ebp + 0xc]
call fcn.0042acfc
jmp 0x425b4f
push dword [ebp + 0xc]
call fcn.0042a042
jmp 0x425b4f
mov eax, esi
shr eax, 0x10
push eax
movzx eax, si
push eax
push dword [ebp + 0xc]
call fcn.0042a042
jmp 0x425c04
push dword [ebp + 0xc]
jmp 0x425b4a
push esi
call fcn.004248a4
push eax
jmp 0x425bf2
mov eax, esi
shr eax, 0x10
push eax
movzx eax, si
jmp 0x425b6a
movsx eax, si
shr esi, 0x10
movsx ecx, si
push ecx
push eax
push dword [ebp + 0xc]
call fcn.004248a4
jmp 0x425c04
push esi
push dword [ebp + 0xc]
call fcn.004248a4
push eax
jmp 0x425beb
push esi
call fcn.004248a4
push eax
jmp 0x425be8
mov eax, dword [ebp + 0xc]
shr eax, 0x10
push eax
push esi
call fcn.004248a4
jmp 0x425bff
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 0x425bc3
push esi
call fcn.004248a4
push eax
push dword [ebp + 0xc]
push dword [ebp + 8]
jmp 0x425c15
push eax
push edx
jmp 0x425beb
push esi
push dword [ebp + 0xc]
jmp 0x425bd8
movsx eax, si
shr esi, 0x10
movsx ecx, si
push ecx
push eax
mov ecx, edi
call ebx
jmp 0x425c66
mov ecx, edi
call ebx
jmp 0x425c66
push esi
push dword [ebp + 0xc]
mov ecx, edi
call ebx
jmp case.0x42599c.38
push esi
mov ecx, edi
call ebx
jmp case.0x42599c.38
mov eax, dword [ebp + 0xc]
push esi
shr eax, 0x10
push eax
movzx eax, word [ebp + 0xc]
push eax
jmp 0x425c15
movsx eax, si
shr esi, 0x10
movsx ecx, si
push ecx
push eax
push dword [ebp + 0xc]
mov ecx, edi
call ebx
jmp case.0x42599c.38
push esi
mov ecx, edi
push dword [ebp + 0xc]
call ebx
mov dword [ebp - 0x10], 1
jmp case.0x42599c.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.0x42599c.38
jmp 0x425951
push 7
mov dword [ebx + 4], eax
call fcn.0043e1b4
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 0x425c75
mov ecx, dword [ebp - 0x10]
mov dword [eax], ecx
push 1
pop eax
jmp 0x425953