Function at 0x4d6978
Capabilities:
Create thread
Hide graphical window
Log keystrokes via polling
Set environment variable

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x148
mov dword [ebp - 0x108], str.ArBase_Bitmap_Window
mov dword [ebp - 4], str.ArBase_Test_Bitmap_Window
mov al, byte [ebp + 0x14]
mov byte [0x5058c8], al
mov cl, byte [ebp + 0x10]
mov byte [0x5058c9], cl
mov edx, dword [ebp + 8]
mov dword [0x5058b4], edx
mov eax, dword [ebp + 0xc]
mov dword [0x5058b0], eax
mov ecx, dword [ebp + 0x18]
and ecx, 0xff
test ecx, ecx
je 0x4d6a2b
mov edx, dword [ebp + 0x14]
and edx, 0xff
test edx, edx
jne 0x4d6a2b
mov byte [0x5058d5], 1
call dword [sym.imp.KERNEL32.dll_GetTickCount]
add eax, 0xfa
mov dword [ebp - 0x114], eax
push 0x5058cc
push 0
push 0
push 0x4d6eb9
push 0
push 0
call dword [sym.imp.KERNEL32.dll_CreateThread]
xor eax, eax
mov al, byte [0x5058d5]
test eax, eax
je 0x4d6a21
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, dword [ebp - 0x114]
jae 0x4d6a21
push 1
call dword [sym.imp.KERNEL32.dll_Sleep]
jmp 0x4d69fe
mov eax, 1
jmp 0x4d6c79
call dword [sym.imp.KERNEL32.dll_GetCurrentThreadId]
mov dword [0x5058cc], eax
xor ecx, ecx
mov cl, byte [0x5058d4]
test ecx, ecx
jne 0x4d6afd
mov dword [ebp - 0x13c], 0
mov dword [ebp - 0x138], 0x4d6c7d
mov dword [ebp - 0x134], 0
mov dword [ebp - 0x130], 0
mov edx, dword [0x5058a4]
mov dword [ebp - 0x12c], edx
mov dword [ebp - 0x128], 0
xor eax, eax
mov al, byte [0x5058c8]
neg eax
sbb eax, eax
and al, 0xfe
add eax, 0x7f02
push eax
push 0
call dword [sym.imp.USER32.dll_LoadCursorA]
mov dword [ebp - 0x124], eax
mov dword [ebp - 0x120], 0
mov dword [ebp - 0x11c], 0
mov ecx, dword [ebp + 0x14]
and ecx, 0xff
test ecx, ecx
je 0x4d6ad1
mov edx, dword [ebp - 4]
mov dword [ebp - 0x144], edx
jmp 0x4d6add
mov eax, dword [ebp - 0x108]
mov dword [ebp - 0x144], eax
mov ecx, dword [ebp - 0x144]
mov dword [ebp - 0x118], ecx
lea edx, [ebp - 0x13c]
push edx
call dword [sym.imp.USER32.dll_RegisterClassA]
mov byte [0x5058d4], 1
mov eax, dword [ebp + 0x14]
and eax, 0xff
test eax, eax
je 0x4d6b3f
mov dword [ebp - 0x140], 0
jmp 0x4d6b24
mov ecx, dword [ebp - 0x140]
add ecx, 1
mov dword [ebp - 0x140], ecx
cmp dword [ebp - 0x140], 0x100
jge 0x4d6b3f
mov edx, dword [ebp - 0x140]
push edx
call dword [sym.imp.USER32.dll_GetAsyncKeyState]
jmp 0x4d6b15
push 0
call dword [sym.imp.USER32.dll_GetSystemMetrics]
sub eax, dword [0x5058b4]
cdq
sub eax, edx
sar eax, 1
mov dword [ebp - 0x110], eax
push 1
call dword [sym.imp.USER32.dll_GetSystemMetrics]
sub eax, dword [0x5058b0]
cdq
sub eax, edx
sar eax, 1
mov dword [ebp - 0x10c], eax
mov eax, dword [ebp + 0x14]
and eax, 0xff
test eax, eax
je 0x4d6b88
mov ecx, dword [ebp - 4]
mov dword [ebp - 0x148], ecx
jmp 0x4d6b94
mov edx, dword [ebp - 0x108]
mov dword [ebp - 0x148], edx
push 0
mov eax, dword [0x5058a4]
push eax
push 0
push 0
mov ecx, dword [0x5058b0]
push ecx
mov edx, dword [0x5058b4]
push edx
mov eax, dword [ebp - 0x10c]
push eax
mov ecx, dword [ebp - 0x110]
push ecx
xor edx, edx
mov dl, byte [0x5058c8]
neg edx
sbb edx, edx
and edx, 0xf8000000
add edx, 0x8000000
or edx, 0x80000000
push edx
push 0
mov eax, dword [ebp - 0x148]
push eax
mov ecx, dword [ebp + 0x10]
and ecx, 0xff
neg ecx
sbb ecx, ecx
and ecx, 0xffffff88
add ecx, 0x80
push ecx
call dword [sym.imp.USER32.dll_CreateWindowExA]
mov dword [0x5058bc], eax
push 4
mov edx, dword [0x5058bc]
push edx
call dword [sym.imp.USER32.dll_ShowWindow]
mov eax, dword [0x5058bc]
push eax
call dword [sym.imp.USER32.dll_UpdateWindow]
mov ecx, dword [ebp + 0x14]
and ecx, 0xff
test ecx, ecx
je 0x4d6c41
push 0
push 0x64
push 2
mov edx, dword [0x5058bc]
push edx
call dword [sym.imp.USER32.dll_SetTimer]
mov eax, dword [0x5058bc]
push eax
push str._08X
lea ecx, [ebp - 0x104]
push ecx
call fcn.004e91e0
add esp, 0xc
lea edx, [ebp - 0x104]
push edx
push str.LOADINGWINDOW
call dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableA]
mov byte [0x5058d5], 0
mov eax, dword [0x5058bc]
mov esp, ebp
pop ebp
ret