Function at 0x42a650
Capabilities:
Check if file exists
Create process on windows
Get file attributes

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x4986b8
mov eax, dword fs:[0]
push eax
sub esp, 0x48
push ebx
push esi
push edi
mov eax, dword [0x4ce4e0]
xor eax, ebp
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov eax, dword [section..data]
mov edx, dword [eax + 0xc]
mov ecx, section..data
call edx
add eax, 0x10
mov dword [ebp - 0x10], eax
xor edi, edi
mov dword [ebp - 4], edi
mov eax, dword [section..data]
mov edx, dword [eax + 0xc]
mov ecx, section..data
call edx
lea esi, [eax + 0x10]
mov dword [ebp - 0x14], esi
lea eax, [ebp - 0x18]
mov bl, 1
push eax
mov byte [ebp - 4], bl
call fcn.0043ed50
mov byte [ebp - 4], 2
mov ecx, dword [eax]
push ecx
lea edx, [ebp - 0x10]
push str._sFunNail.dll
push edx
call fcn.0040c2b0
mov byte [ebp - 4], bl
mov eax, dword [ebp - 0x18]
add eax, 0xfffffff0
add esp, 0xc
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x42a6ef
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
mov eax, dword [edx + 4]
call eax
mov ebx, dword [ebp - 0x10]
push ebx
call dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
cmp eax, 0xffffffff
je 0x42a7d7
test al, 0x10
jne 0x42a7d7
push ebx
lea ecx, [ebp - 0x14]
push str.__s__startup
push ecx
call fcn.0040c2b0
add esp, 0xc
push str.rundll32.exe
lea ecx, [ebp - 0x18]
call fcn.00401ba0
push 0x38
lea edx, [ebp - 0x50]
push edi
push edx
call fcn.00478ba0
mov eax, dword [ebp - 0x18]
mov esi, dword [ebp - 0x14]
add esp, 0xc
lea ecx, [ebp - 0x54]
push ecx
mov dword [ebp - 0x54], 0x3c
mov dword [ebp - 0x50], 0x100
mov dword [ebp - 0x44], eax
mov dword [ebp - 0x40], esi
mov dword [ebp - 0x38], edi
call dword [sym.imp.SHELL32.dll_ShellExecuteExW]
mov edi, eax
mov eax, dword [ebp - 0x18]
add eax, 0xfffffff0
lea edx, [eax + 0xc]
or ecx, 0xffffffff
lock xadd dword [edx], ecx
dec ecx
test ecx, ecx
jg 0x42a780
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
mov eax, dword [edx + 4]
call eax
lea eax, [esi - 0x10]
mov byte [ebp - 4], 0
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x42a7a0
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
mov eax, dword [edx + 4]
call eax
lea eax, [ebx - 0x10]
mov dword [ebp - 4], 0xffffffff
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x42a7c3
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
mov eax, dword [edx + 4]
call eax
mov eax, edi
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
lea eax, [esi - 0x10]
mov byte [ebp - 4], 0
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x42a7f7
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
mov eax, dword [edx + 4]
call eax
lea eax, [ebx - 0x10]
mov dword [ebp - 4], 0xffffffff
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x42a81a
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
mov eax, dword [edx + 4]
call eax
xor eax, eax
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret