Function at 0x457d18
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], 0x4816dc
mov dword [ebp - 4], 0x4816c0
mov al, byte [ebp + 0x14]
mov byte [0x487634], al
mov cl, byte [ebp + 0x10]
mov byte [0x487635], cl
mov edx, dword [ebp + 8]
mov dword [0x487620], edx
mov eax, dword [ebp + 0xc]
mov dword [0x48761c], eax
mov ecx, dword [ebp + 0x18]
and ecx, 0xff
test ecx, ecx
je 0x457dcb
mov edx, dword [ebp + 0x14]
and edx, 0xff
test edx, edx
jne 0x457dcb
mov byte [0x487641], 1
call dword [sym.imp.KERNEL32.dll_GetTickCount]
add eax, 0xfa
mov dword [ebp - 0x114], eax
push 0x487638
push 0
push 0
push 0x458259
push 0
push 0
call dword [sym.imp.KERNEL32.dll_CreateThread]
xor eax, eax
mov al, byte [0x487641]
test eax, eax
je 0x457dc1
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, dword [ebp - 0x114]
jae 0x457dc1
push 1
call dword [sym.imp.KERNEL32.dll_Sleep]
jmp 0x457d9e
mov eax, 1
jmp 0x458019
call dword [sym.imp.KERNEL32.dll_GetCurrentThreadId]
mov dword [0x487638], eax
xor ecx, ecx
mov cl, byte [0x487640]
test ecx, ecx
jne 0x457e9d
mov dword [ebp - 0x13c], 0
mov dword [ebp - 0x138], 0x45801d
mov dword [ebp - 0x134], 0
mov dword [ebp - 0x130], 0
mov edx, dword [0x487610]
mov dword [ebp - 0x12c], edx
mov dword [ebp - 0x128], 0
xor eax, eax
mov al, byte [0x487634]
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 0x457e71
mov edx, dword [ebp - 4]
mov dword [ebp - 0x144], edx
jmp 0x457e7d
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 [0x487640], 1
mov eax, dword [ebp + 0x14]
and eax, 0xff
test eax, eax
je 0x457edf
mov dword [ebp - 0x140], 0
jmp 0x457ec4
mov ecx, dword [ebp - 0x140]
add ecx, 1
mov dword [ebp - 0x140], ecx
cmp dword [ebp - 0x140], 0x100
jge 0x457edf
mov edx, dword [ebp - 0x140]
push edx
call dword [sym.imp.USER32.dll_GetAsyncKeyState]
jmp 0x457eb5
push 0
call dword [sym.imp.USER32.dll_GetSystemMetrics]
sub eax, dword [0x487620]
cdq
sub eax, edx
sar eax, 1
mov dword [ebp - 0x110], eax
push 1
call dword [sym.imp.USER32.dll_GetSystemMetrics]
sub eax, dword [0x48761c]
cdq
sub eax, edx
sar eax, 1
mov dword [ebp - 0x10c], eax
mov eax, dword [ebp + 0x14]
and eax, 0xff
test eax, eax
je 0x457f28
mov ecx, dword [ebp - 4]
mov dword [ebp - 0x148], ecx
jmp 0x457f34
mov edx, dword [ebp - 0x108]
mov dword [ebp - 0x148], edx
push 0
mov eax, dword [0x487610]
push eax
push 0
push 0
mov ecx, dword [0x48761c]
push ecx
mov edx, dword [0x487620]
push edx
mov eax, dword [ebp - 0x10c]
push eax
mov ecx, dword [ebp - 0x110]
push ecx
xor edx, edx
mov dl, byte [0x487634]
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 [0x487628], eax
push 4
mov edx, dword [0x487628]
push edx
call dword [sym.imp.USER32.dll_ShowWindow]
mov eax, dword [0x487628]
push eax
call dword [sym.imp.USER32.dll_UpdateWindow]
mov ecx, dword [ebp + 0x14]
and ecx, 0xff
test ecx, ecx
je 0x457fe1
push 0
push 0x64
push 2
mov edx, dword [0x487628]
push edx
call dword [sym.imp.USER32.dll_SetTimer]
mov eax, dword [0x487628]
push eax
push 0x481594
lea ecx, [ebp - 0x104]
push ecx
call fcn.0046a1e1
add esp, 0xc
lea edx, [ebp - 0x104]
push edx
push 0x4816b0
call dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableA]
mov byte [0x487641], 0
mov eax, dword [0x487628]
mov esp, ebp
pop ebp
ret