Function at 0x4186da
Capabilities:
Check os version
Get common file path

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xec0
and byte [ebp - 0x24], 0
push ebx
push esi
push edi
mov dword [ebp - 4], ecx
push 7
pop ecx
xor eax, eax
lea edi, [ebp - 0x23]
and byte [ebp - 0x6c0], 0
rep stosd dword es:[edi], eax
stosb byte es:[edi], al
push 0x7f
xor eax, eax
pop ecx
lea edi, [ebp - 0x6bf]
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
lea eax, [ebp - 0x6c0]
push eax
lea eax, [ebp - 0x24]
push eax
push str.Msi.DLL
call fcn.004297b1
lea eax, [ebp - 0x24]
push eax
push dword [ebp + 8]
call fcn.0042a097
add esp, 0x14
test eax, eax
jge 0x418943
mov ecx, dword [ebp - 4]
call fcn.00401046
mov edi, eax
mov ecx, edi
call fcn.0041ed29
mov ecx, edi
mov esi, eax
call fcn.00420ecf
push 2
test eax, eax
pop ebx
je 0x4187a6
cmp dword [esi + 8], 5
jne 0x418767
cmp dword [esi + 0xc], ebx
jae 0x418770
call fcn.0042ee23
test eax, eax
je 0x41879f
call fcn.0042ee23
test eax, eax
jne 0x41893e
lea eax, [ebp - 0xc0]
mov dword [ebp - 0xc0], 0x9c
push eax
call dword [sym.imp.KERNEL32.dll_GetVersionExA]
cmp word [ebp - 0x2c], 1
jae 0x41893e
mov eax, str.SupportOSMsi30
jmp 0x4187bb
mov ecx, edi
call fcn.00420eb2
test eax, eax
mov eax, str.SupportOSMsi12
jne 0x4187bb
mov eax, str.SupportOS
push edi
push eax
call fcn.0042af61
pop ecx
test eax, eax
pop ecx
je 0x41886b
cmp dword [esi], ebx
jne 0x418864
call fcn.0042a3dc
test eax, eax
jne 0x4187f5
mov eax, 0x4b2
push eax
mov dword [0x450be0], eax
call fcn.00429600
pop ecx
push 1
jmp 0x418945
and byte [ebp - 0x4c0], 0
mov ecx, 0xff
xor eax, eax
lea edi, [ebp - 0x4bf]
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
lea eax, [ebp - 0x4c0]
mov esi, 0x400
push eax
push esi
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
test eax, eax
je 0x418838
mov ecx, dword [ebp - 4]
lea eax, [ebp - 0x4c0]
push eax
call fcn.004183e8
test eax, eax
je 0x41885d
lea eax, [ebp - 0x4c0]
push esi
push eax
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
test eax, eax
je 0x418864
mov ecx, dword [ebp - 4]
lea eax, [ebp - 0x4c0]
push eax
call fcn.004183e8
test eax, eax
jne 0x418864
mov eax, ebx
jmp 0x418946
xor eax, eax
jmp 0x418946
cmp dword [esi + 0x14], ebx
jne 0x418876
cmp dword [esi + 8], 4
je 0x418881
mov ecx, edi
call fcn.00420ecf
test eax, eax
je 0x41888f
mov ecx, edi
call fcn.00420e79
push 3
jmp 0x418945
mov esi, 0x400
lea eax, [ebp - 0xec0]
push esi
push eax
push 0x44dbd0
lea ecx, [edi + 0x4030]
push dword [0x44069c]
push dword [0x440694]
call fcn.0040239d
cmp byte [ebp - 0xec0], 0x79
je 0x41893e
cmp byte [ebp - 0xec0], 0x59
je 0x41893e
and byte [ebp - 0x4c0], 0
mov ebx, 0xff
mov ecx, ebx
xor eax, eax
lea edi, [ebp - 0x4bf]
mov edx, 0x4b7
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
lea eax, [ebp - 0x4c0]
push esi
push eax
push edx
mov dword [0x450be0], edx
call fcn.00429677
and byte [ebp - 0xac0], 0
mov ecx, ebx
xor eax, eax
lea edi, [ebp - 0xabf]
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
add esp, 0xc
stosb byte es:[edi], al
lea eax, [ebp - 0x24]
push eax
lea eax, [ebp - 0x4c0]
push eax
lea eax, [ebp - 0xac0]
push eax
call dword [sym.imp.USER32.dll_wsprintfA]
lea eax, [ebp - 0xac0]
push eax
call fcn.004294a8
add esp, 0x10
or eax, 0xffffffff
jmp 0x418946
push 0xfffffffffffffffe
pop eax
pop edi
pop esi
pop ebx
leave
ret 4