Function at 0x420e5d
Capabilities:
Check os version
Get common file path

Disassembly:
mov eax, 0x4756bd
call fcn.00444d58
sub esp, 0x784
and byte [ebp - 0x2c], 0
push ebx
push esi
push edi
mov ebx, ecx
push 7
pop ecx
xor eax, eax
lea edi, [ebp - 0x2b]
and byte [ebp - 0x390], 0
rep stosd dword es:[edi], eax
stosb byte es:[edi], al
push 0x7f
xor eax, eax
pop ecx
lea edi, [ebp - 0x38f]
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
lea eax, [ebp - 0x390]
push eax
lea eax, [ebp - 0x2c]
push eax
push str.Msi.DLL
call fcn.00440429
lea eax, [ebp - 0x2c]
push eax
push dword [ebp + 8]
call fcn.00440d95
add esp, 0x14
test eax, eax
jge 0x421143
mov ecx, ebx
call fcn.0040104a
mov edi, eax
mov ecx, edi
call fcn.0042dced
mov ecx, edi
mov esi, eax
call fcn.00431f9b
test eax, eax
je 0x420f2f
cmp dword [esi + 8], 5
jne 0x420eed
cmp dword [esi + 0xc], 2
jae 0x420ef6
call fcn.0045753f
test al, al
je 0x420f28
call fcn.0045753f
test al, al
jne 0x42113e
lea eax, [ebp - 0x190]
mov dword [ebp - 0x190], 0x9c
push eax
call dword [sym.imp.KERNEL32.dll_GetVersionExA]
cmp word [ebp - 0xfc], 1
jae 0x42113e
mov eax, str.SupportOSMsi30
jmp 0x420f44
mov ecx, edi
call fcn.00431f46
test eax, eax
mov eax, str.SupportOSMsi12
jne 0x420f44
mov eax, str.SupportOS
push edi
push eax
call fcn.00441ef0
pop ecx
test eax, eax
pop ecx
je 0x420ff3
cmp dword [esi], 2
jne 0x420fec
call fcn.004412cf
test eax, eax
jne 0x420f7f
mov eax, 0x4b2
push eax
mov dword [0x49b6ec], eax
call fcn.00440087
pop ecx
push 1
jmp 0x421145
and byte [ebp - 0x790], 0
mov ecx, 0xff
xor eax, eax
lea edi, [ebp - 0x78f]
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
lea eax, [ebp - 0x790]
mov esi, 0x400
push eax
push esi
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
test eax, eax
je 0x420fc1
lea eax, [ebp - 0x790]
mov ecx, ebx
push eax
call fcn.00420b71
test eax, eax
je 0x420fe5
lea eax, [ebp - 0x790]
push esi
push eax
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
test eax, eax
je 0x420fec
lea eax, [ebp - 0x790]
mov ecx, ebx
push eax
call fcn.00420b71
test eax, eax
jne 0x420fec
push 2
jmp 0x421145
xor eax, eax
jmp 0x421146
cmp dword [esi + 0x14], 2
jne 0x420fff
cmp dword [esi + 8], 4
je 0x42100a
mov ecx, edi
call fcn.00431f9b
test eax, eax
je 0x421018
mov ecx, edi
call fcn.00431f0d
push 3
jmp 0x421145
lea eax, [ebp + 0xb]
push 1
push eax
lea ecx, [ebp - 0x7c]
push dword [0x47b700]
call fcn.0040175f
and dword [ebp - 4], 0
lea eax, [ebp - 0xe]
push 1
push eax
push dword [0x47b6f8]
lea ecx, [ebp - 0xa4]
call fcn.0040175f
lea eax, [ebp - 0x7c]
push 0
push eax
lea eax, [ebp - 0xa4]
push eax
mov ecx, edi
mov byte [ebp - 4], 1
call fcn.0043247c
and byte [ebp - 4], 0
lea ecx, [ebp - 0xa4]
mov bl, al
call fcn.00401bc2
or dword [ebp - 4], 0xffffffff
lea ecx, [ebp - 0x7c]
call fcn.00401bc2
test bl, bl
je 0x42113e
lea eax, [ebp + 0xb]
mov esi, 0x4b7
push 0
push eax
lea ecx, [ebp - 0x54]
mov dword [0x49b6ec], esi
mov dword [ebp - 0x54], 0x47b560
mov dword [ebp - 0x34], 0x47b558
call fcn.004017e1
lea eax, [ebp - 0xd]
push 1
push eax
lea eax, [ebp - 0x2c]
push eax
lea ecx, [ebp - 0xcc]
mov dword [ebp - 4], 2
call fcn.0040175f
mov eax, dword [eax + 8]
mov edi, 0x47b578
test eax, eax
mov byte [ebp - 4], 3
mov ebx, edi
je 0x4210db
mov ebx, eax
lea eax, [ebp - 0xf4]
push esi
push eax
call fcn.004401b9
pop ecx
pop ecx
mov eax, dword [eax + 8]
mov byte [ebp - 4], 4
test eax, eax
jne 0x4210f7
mov eax, edi
push ebx
push eax
lea eax, [ebp - 0x54]
push eax
call fcn.00414de0
add esp, 0xc
lea ecx, [ebp - 0xf4]
mov byte [ebp - 4], 3
call fcn.00401bc2
lea ecx, [ebp - 0xcc]
mov byte [ebp - 4], 2
call fcn.00401bc2
lea ecx, [ebp - 0x54]
call fcn.0040198d
push eax
call fcn.0043fe7d
or dword [ebp - 4], 0xffffffff
pop ecx
lea ecx, [ebp - 0x54]
call fcn.00401bc2
or eax, 0xffffffff
jmp 0x421146
push 0xfffffffffffffffe
pop eax
mov ecx, dword [ebp - 0xc]
pop edi
pop esi
pop ebx
mov dword fs:[0], ecx
leave
ret 4