Function at 0x43de00
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
push ebx
push edi
push esi
sub esp, 0x18
mov ebx, dword [esp + 0x2c]
mov esi, dword [esp + 0x30]
mov eax, dword [esp + 0x34]
add eax, esi
sub eax, dword [esp + 0x3c]
mov dword [ebx + 8], 0
mov dword [ebx + 4], 0
mov dword [ebx], 0
mov dword [esp + 0x14], eax
cmp eax, esi
jbe 0x43e08a
mov edx, dword [esp + 0x40]
mov eax, dword [esp + 0x3c]
lea ebp, [eax - 1]
xor edi, edi
mov dword [esp + 4], 0
mov dword [esp + 0xc], 0
jmp 0x43de95
mov ebx, edi
mov ecx, edi
mov edi, dword [esp + 4]
sub ebx, edi
cmp ecx, dword [esp + 0xc]
je 0x43dee9
mov eax, edi
mov edi, ecx
mov ecx, dword [esp + 0x2c]
mov dword [eax + ebx], esi
add edi, 4
mov dword [ecx + 4], edi
mov eax, dword [esp + 0x3c]
add esi, eax
dec esi
mov ebx, ecx
inc esi
cmp esi, dword [esp + 0x14]
jae 0x43e08a
test edx, edx
je 0x43de9e
cmp byte [edx], 0x3f
je 0x43dea9
movzx ecx, byte [esi]
mov eax, dword [esp + 0x38]
cmp cl, byte [eax]
jne 0x43de8a
cmp dword [esp + 0x3c], 2
jb 0x43de60
xor ecx, ecx
jmp 0x43dedc
movzx edx, byte [esi + ecx + 1]
mov eax, dword [esp + 0x38]
cmp dl, byte [eax + ecx + 1]
mov edx, dword [esp + 0x40]
jne 0x43dfff
inc ecx
cmp ebp, ecx
je 0x43de60
test edx, edx
je 0x43dec0
cmp byte [edx + ecx + 1], 0x3f
jne 0x43dec0
jmp 0x43ded7
mov dword [esp + 8], ebx
mov eax, ebx
sar eax, 2
inc eax
mov ebx, ecx
xor ebx, edi
not edi
and edi, ecx
add edi, edi
sub edi, ebx
sar edi, 2
mov ebx, edi
shr ebx, 1
add ebx, edi
cmp ebx, eax
mov edi, ecx
ja 0x43df10
mov ebx, eax
lea eax, [ebx*4]
push eax
call fcn.0040c580
add esp, 4
mov edx, dword [esp + 4]
test edx, edx
mov ecx, dword [esp + 0x2c]
mov dword [esp], eax
je 0x43e063
mov dword [esp + 0xc], ebx
cmp eax, edx
mov ebx, dword [esp + 8]
jbe 0x43e006
cmp edi, eax
jbe 0x43e006
test ebx, ebx
je 0x43e04c
mov dword [esp + 0x10], edi
mov edx, dword [esp + 8]
mov eax, dword [esp]
add eax, edx
dec eax
mov ecx, dword [esp + 4]
add ecx, edx
dec ecx
mov edi, edx
and edi, 7
je 0x43df94
neg edi
xor edx, edx
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
movzx ebx, byte [ecx + edx]
mov byte [eax + edx], bl
dec edx
cmp edi, edx
jne 0x43df80
add ecx, edx
add eax, edx
add edx, dword [esp + 8]
mov edi, dword [esp + 4]
sub edi, dword [esp + 0x10]
cmp edi, 0xfffffff8
ja 0x43e04c
neg edx
xor edi, edi
nop
nop
nop
nop
nop
nop
nop
movzx ebx, byte [ecx + edi]
mov byte [eax + edi], bl
movzx ebx, byte [ecx + edi - 1]
mov byte [eax + edi - 1], bl
movzx ebx, byte [ecx + edi - 2]
mov byte [eax + edi - 2], bl
movzx ebx, byte [ecx + edi - 3]
mov byte [eax + edi - 3], bl
movzx ebx, byte [ecx + edi - 4]
mov byte [eax + edi - 4], bl
movzx ebx, byte [ecx + edi - 5]
mov byte [eax + edi - 5], bl
movzx ebx, byte [ecx + edi - 6]
mov byte [eax + edi - 6], bl
movzx ebx, byte [ecx + edi - 7]
mov byte [eax + edi - 7], bl
add edi, 0xfffffff8
cmp edx, edi
jne 0x43dfb0
jmp 0x43e04c
add esi, ecx
jmp 0x43de8a
mov ecx, ebx
shr ecx, 2
mov eax, edx
mov edi, dword [esp]
xchg esi, eax
rep movsd dword es:[edi], dword [esi]
xchg esi, eax
mov eax, edx
mov edx, ebx
and edx, 0xfffffffc
mov ecx, dword [esp]
lea edi, [ecx + edx]
add edx, eax
mov ecx, ebx
shr ecx, 1
and ecx, 1
mov eax, edx
mov dword [esp + 0x10], edi
xchg esi, eax
rep movsw word es:[edi], word [esi]
xchg esi, eax
test bl, 1
je 0x43e04c
mov eax, dword [esp + 8]
and eax, 2
movzx ecx, byte [edx + eax]
mov edx, dword [esp + 0x10]
mov byte [edx + eax], cl
push dword [esp + 4]
call fcn.0040c590
add esp, 4
mov ecx, dword [esp + 0x2c]
mov ebx, dword [esp + 0xc]
mov eax, dword [esp]
mov dword [ecx], eax
lea edx, [eax + ebx*4]
mov edi, eax
mov ebx, dword [esp + 8]
add edi, ebx
mov dword [esp + 0xc], edx
mov dword [ecx + 8], edx
mov eax, dword [esp]
mov dword [esp + 4], eax
mov eax, dword [esp]
mov edx, dword [esp + 0x40]
jmp 0x43de78
mov eax, ebx
add esp, 0x18
pop esi
pop edi
pop ebx
pop ebp
ret