Function at 0x43c765
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], 0x4453d0
mov dword [ebp - 4], 0x4453e8
mov al, byte [ebp + 0x14]
mov byte [0x4482a8], al
mov cl, byte [ebp + 0x10]
mov byte [0x4482a9], cl
mov edx, dword [ebp + 8]
mov dword [0x448294], edx
mov eax, dword [ebp + 0xc]
mov dword [0x448290], eax
mov ecx, dword [ebp + 0x18]
and ecx, 0xff
test ecx, ecx
je 0x43c7fc
mov edx, dword [ebp + 0x14]
and edx, 0xff
test edx, edx
jne 0x43c7fc
mov byte [0x4482ab], 1
lea eax, [ebp - 0x114]
push eax
push 0
push 0
push 0x43cc76
push 0
push 0
call dword [sym.imp.KERNEL32.dll_CreateThread]
xor ecx, ecx
mov cl, byte [0x4482ab]
test ecx, ecx
je 0x43c7f2
push 0
call dword [sym.imp.KERNEL32.dll_Sleep]
jmp 0x43c7dc
mov eax, 1
jmp 0x43ca44
xor edx, edx
mov dl, byte [0x4482aa]
test edx, edx
jne 0x43c8c5
mov dword [ebp - 0x13c], 0
mov dword [ebp - 0x138], 0x43ca48
mov dword [ebp - 0x134], 0
mov dword [ebp - 0x130], 0
push 0
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
mov dword [ebp - 0x12c], eax
mov dword [ebp - 0x128], 0
xor eax, eax
mov al, byte [0x4482a8]
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 0x43c899
mov edx, dword [ebp - 4]
mov dword [ebp - 0x144], edx
jmp 0x43c8a5
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 [0x4482aa], 1
mov eax, dword [ebp + 0x14]
and eax, 0xff
test eax, eax
je 0x43c907
mov dword [ebp - 0x140], 0
jmp 0x43c8ec
mov ecx, dword [ebp - 0x140]
add ecx, 1
mov dword [ebp - 0x140], ecx
cmp dword [ebp - 0x140], 0x100
jge 0x43c907
mov edx, dword [ebp - 0x140]
push edx
call dword [sym.imp.USER32.dll_GetAsyncKeyState]
jmp 0x43c8dd
push 0
call dword [sym.imp.USER32.dll_GetSystemMetrics]
sub eax, dword [0x448294]
cdq
sub eax, edx
sar eax, 1
mov dword [ebp - 0x110], eax
push 1
call dword [sym.imp.USER32.dll_GetSystemMetrics]
sub eax, dword [0x448290]
cdq
sub eax, edx
sar eax, 1
mov dword [ebp - 0x10c], eax
mov eax, dword [ebp + 0x14]
and eax, 0xff
test eax, eax
je 0x43c950
mov ecx, dword [ebp - 4]
mov dword [ebp - 0x148], ecx
jmp 0x43c95c
mov edx, dword [ebp - 0x108]
mov dword [ebp - 0x148], edx
push 0
push 0
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
push eax
push 0
push 0
mov eax, dword [0x448290]
push eax
mov ecx, dword [0x448294]
push ecx
mov edx, dword [ebp - 0x10c]
push edx
mov eax, dword [ebp - 0x110]
push eax
xor ecx, ecx
mov cl, byte [0x4482a8]
neg ecx
sbb ecx, ecx
and ecx, 0xf8000000
add ecx, 0x8000000
or ecx, 0x80000000
push ecx
push 0x445404
mov edx, dword [ebp - 0x148]
push edx
mov eax, dword [ebp + 0x10]
and eax, 0xff
neg eax
sbb eax, eax
and al, 0x88
add eax, 0x80
push eax
call dword [sym.imp.USER32.dll_CreateWindowExA]
mov dword [0x44829c], eax
push 4
mov ecx, dword [0x44829c]
push ecx
call dword [sym.imp.USER32.dll_ShowWindow]
mov edx, dword [0x44829c]
push edx
call dword [sym.imp.USER32.dll_UpdateWindow]
mov eax, dword [ebp + 0x14]
and eax, 0xff
test eax, eax
je 0x43ca0b
push 0
push 0x64
push 2
mov ecx, dword [0x44829c]
push ecx
call dword [sym.imp.USER32.dll_SetTimer]
mov edx, dword [0x44829c]
push edx
push 0x445410
lea eax, [ebp - 0x104]
push eax
call fcn.0043ef1f
add esp, 0xc
lea ecx, [ebp - 0x104]
push ecx
push 0x445418
call dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableA]
mov byte [0x4482ab], 0
mov eax, dword [0x44829c]
mov esp, ebp
pop ebp
ret