Function at 0x4399f0
Capabilities:
Check if file exists
Query or enumerate registry value

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x52a59c
mov eax, dword fs:[0]
push eax
sub esp, 0x454
mov eax, dword [0x583bb4]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov ebx, ecx
call fcn.0040cb40
mov ecx, eax
test ecx, ecx
je 0x439d55
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x454], eax
push str.__PID
lea ecx, [ebp - 0x454]
mov dword [ebp - 4], 0
call fcn.0040e140
test al, al
jne 0x439a80
mov ecx, str.__PID
lea edx, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x439a60
sub ecx, edx
sar ecx, 1
push ecx
push str.__PID
lea ecx, [ebp - 0x454]
call fcn.0040d780
lea esi, [ebx + 0x44]
mov dword [ebp - 4], 1
push esi
lea eax, [ebp - 0x454]
mov ecx, ebx
push eax
call fcn.00437d20
mov edx, dword [ebp - 0x454]
or edi, 0xffffffff
mov dword [ebp - 4], 0xffffffff
add edx, 0xfffffff0
mov eax, edi
lock xadd dword [edx + 0xc], eax
dec eax
test eax, eax
jg 0x439ac0
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
mov eax, dword [esi]
cmp dword [eax - 0xc], 0
jne 0x439b67
call fcn.0040cb40
mov ecx, eax
test ecx, ecx
je 0x439d5f
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x454], eax
push 0xd0
lea ecx, [ebp - 0x454]
mov dword [ebp - 4], 2
call fcn.0040e140
test al, al
jne 0x439b30
mov ecx, 0xd0
lea edx, [ecx + 2]
nop dword [eax]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x439b10
sub ecx, edx
sar ecx, 1
push ecx
push 0xd0
lea ecx, [ebp - 0x454]
call fcn.0040d780
lea eax, [ebp - 0x454]
mov dword [ebp - 4], 3
push eax
mov ecx, esi
call fcn.0041c1d0
mov edx, dword [ebp - 0x454]
mov dword [ebp - 4], 0xffffffff
add edx, 0xfffffff0
lock xadd dword [edx + 0xc], edi
dec edi
test edi, edi
jg 0x439b67
mov ecx, dword [edx]
push edx
mov eax, dword [ecx]
call dword [eax + 4]
push 0x208
lea eax, [ebp - 0x218]
push 0
push eax
call fcn.004d1a10
lea eax, [ebp - 0x438]
mov dword [ebp - 0x45c], 1
push 1
push eax
mov dword [ebp - 0x458], 0x208
call fcn.00433360
add esp, 0x14
cmp dword [eax + 0x14], 8
jb 0x439ba7
mov eax, dword [eax]
mov edi, dword [sym.imp.SHLWAPI.dll_SHGetValueW]
lea ecx, [ebp - 0x458]
push ecx
lea ecx, [ebp - 0x218]
push ecx
lea ecx, [ebp - 0x45c]
push ecx
push str.Setup_Path
push eax
push reloc.OLEAUT32.dll_SysReAllocString
call edi
mov edx, dword [ebp - 0x424]
cmp edx, 8
jb 0x439c0f
mov ecx, dword [ebp - 0x438]
lea edx, [edx*2 + 2]
mov eax, ecx
cmp edx, 0x1000
jb 0x439c05
mov ecx, dword [ecx - 4]
add edx, 0x23
sub eax, ecx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x439d69
push edx
push ecx
call fcn.0049a03e
add esp, 8
cmp word [ebp - 0x218], 0
je 0x439c2b
push 0x54196c
lea eax, [ebp - 0x218]
push eax
call dword [sym.imp.SHLWAPI.dll_PathAppendW]
lea eax, [ebp - 0x218]
push eax
call dword [sym.imp.SHLWAPI.dll_PathFileExistsW]
test eax, eax
je 0x439d30
push 0x208
lea eax, [ebp - 0x420]
push 0
push eax
call fcn.004d1a10
lea eax, [ebp - 0x450]
mov dword [ebp - 0x460], 1
push 1
push eax
mov dword [ebp - 0x454], 0x208
call fcn.00433360
add esp, 0x14
cmp dword [eax + 0x14], 8
jb 0x439c80
mov eax, dword [eax]
lea ecx, [ebp - 0x454]
push ecx
lea ecx, [ebp - 0x420]
push ecx
lea ecx, [ebp - 0x460]
push ecx
push str.VendorID
push eax
push reloc.OLEAUT32.dll_SysReAllocString
call edi
lea ecx, [ebp - 0x450]
call fcn.00425e20
lea ecx, [ebp - 0x420]
lea edx, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x439cb6
sub ecx, edx
sar ecx, 1
je 0x439d39
push ecx
lea eax, [ebp - 0x420]
push eax
lea ecx, [ebx + 0x18]
call fcn.0040d780
lea ecx, [ebx + 0x18]
call fcn.00436280
lea ecx, [ebx + 0x18]
call fcn.00436180
mov eax, dword [ebx + 0x18]
mov ecx, 0x5426b8
nop
mov dx, word [eax]
cmp dx, word [ecx]
jne 0x439d16
test dx, dx
je 0x439d12
mov dx, word [eax + 2]
cmp dx, word [ecx + 2]
jne 0x439d16
add eax, 4
add ecx, 4
test dx, dx
jne 0x439cf0
xor eax, eax
jmp 0x439d1b
sbb eax, eax
or eax, 1
test eax, eax
jne 0x439d39
push 7
push str.ludashi
lea ecx, [ebx + 0x18]
call fcn.0040d780
jmp 0x439d39
push esi
lea ecx, [ebx + 0x18]
call fcn.0041c1d0
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.0049a028
mov esp, ebp
pop ebp
ret
push 0x80004005
call fcn.0040ab80
push 0x80004005
call fcn.0040ab80
call fcn.004ee7a3
int3