Function at 0x43ef40
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
push ebx
push edi
push esi
sub esp, 0x1c
mov ebx, dword [esp + 0x30]
mov esi, dword [esp + 0x34]
mov eax, dword [esp + 0x38]
add eax, esi
sub eax, dword [esp + 0x40]
mov dword [ebx + 8], 0
mov dword [ebx + 4], 0
mov dword [ebx], 0
mov dword [esp + 0x18], eax
cmp eax, esi
jbe 0x43f1d0
mov edx, dword [esp + 0x44]
mov eax, dword [esp + 0x40]
lea ebp, [eax - 1]
xor ecx, ecx
mov dword [esp + 0xc], 0
mov dword [esp + 0x10], 0
jmp 0x43efcc
mov ecx, dword [esp]
mov edi, ecx
mov eax, dword [esp + 0xc]
sub edi, eax
cmp ecx, dword [esp + 0x10]
je 0x43f025
mov dword [eax + edi], esi
add ecx, 4
mov dword [ebx + 4], ecx
mov eax, dword [esp + 0x40]
add esi, eax
dec esi
inc esi
cmp esi, dword [esp + 0x18]
jae 0x43f1d0
mov dword [esp], ecx
test edx, edx
je 0x43efd8
cmp byte [edx], 0x3f
je 0x43efe3
movzx ecx, byte [esi]
mov eax, dword [esp + 0x3c]
cmp cl, byte [eax]
jne 0x43f020
cmp dword [esp + 0x40], 2
jb 0x43efa0
xor ecx, ecx
jmp 0x43f00c
movzx edx, byte [esi + ecx + 1]
mov eax, dword [esp + 0x3c]
cmp dl, byte [eax + ecx + 1]
mov edx, dword [esp + 0x44]
jne 0x43f12f
inc ecx
cmp ebp, ecx
je 0x43efa0
test edx, edx
je 0x43eff0
cmp byte [edx + ecx + 1], 0x3f
jne 0x43eff0
jmp 0x43f007
mov ecx, dword [esp]
jmp 0x43efc1
mov dword [esp + 4], edi
sar edi, 2
lea eax, [edi + 1]
mov edx, edi
shr edx, 1
add edx, edi
cmp edx, eax
ja 0x43f03b
mov edx, eax
mov eax, edx
and eax, 0xfffffffb
mov ecx, edx
and ecx, 4
mov edi, edx
mov dword [esp + 0x10], edx
or edx, 4
imul edx, ecx
xor ecx, 4
imul ecx, eax
add edx, ecx
push edx
call fcn.0040cda0
add esp, 4
mov edx, dword [esp + 0xc]
test edx, edx
mov dword [esp + 8], eax
je 0x43f19d
cmp eax, edx
mov ebx, eax
mov eax, dword [esp]
jbe 0x43f139
cmp eax, ebx
jbe 0x43f139
cmp dword [esp + 4], 0
je 0x43f189
mov eax, dword [esp + 0xc]
mov edx, dword [esp + 4]
add eax, edx
dec eax
mov ecx, dword [esp + 8]
add ecx, edx
dec ecx
mov edi, edx
and edi, 7
je 0x43f0c4
neg edi
xor edx, edx
nop
movzx ebx, byte [eax + edx]
mov byte [ecx + edx], bl
dec edx
cmp edi, edx
jne 0x43f0b0
add eax, edx
add ecx, edx
add edx, dword [esp + 4]
mov edi, dword [esp + 0xc]
sub edi, dword [esp]
cmp edi, 0xfffffff8
ja 0x43f189
neg edx
xor edi, edi
nop
nop
nop
nop
nop
nop
nop
nop
movzx ebx, byte [eax + edi]
mov byte [ecx + edi], bl
movzx ebx, byte [eax + edi - 1]
mov byte [ecx + edi - 1], bl
movzx ebx, byte [eax + edi - 2]
mov byte [ecx + edi - 2], bl
movzx ebx, byte [eax + edi - 3]
mov byte [ecx + edi - 3], bl
movzx ebx, byte [eax + edi - 4]
mov byte [ecx + edi - 4], bl
movzx ebx, byte [eax + edi - 5]
mov byte [ecx + edi - 5], bl
movzx ebx, byte [eax + edi - 6]
mov byte [ecx + edi - 6], bl
movzx ebx, byte [eax + edi - 7]
mov byte [ecx + edi - 7], bl
add edi, 0xfffffff8
cmp edx, edi
jne 0x43f0e0
jmp 0x43f189
add esi, ecx
mov ecx, dword [esp]
jmp 0x43efc1
mov ecx, dword [esp + 4]
shr ecx, 2
mov eax, edx
mov edi, ebx
xchg esi, eax
rep movsd dword es:[edi], dword [esi]
xchg esi, eax
mov eax, edx
mov ecx, dword [esp + 4]
mov edx, ecx
and edx, 0xfffffffc
lea edi, [ebx + edx]
add edx, eax
mov eax, ecx
not eax
or eax, 3
add eax, ecx
inc eax
mov ecx, eax
shr ecx, 1
mov dword [esp], edx
mov dword [esp + 0x14], edi
mov ebx, dword [esp]
xchg esi, ebx
rep movsw word es:[edi], word [esi]
xchg esi, ebx
test al, 1
je 0x43f189
and eax, 0xfffffffe
movzx ecx, byte [edx + eax]
mov edx, dword [esp + 0x14]
mov byte [edx + eax], cl
push dword [esp + 0xc]
call fcn.0040cdb0
add esp, 4
mov ebx, dword [esp + 0x30]
mov eax, dword [esp + 8]
mov dword [ebx], eax
mov eax, dword [esp + 0x10]
mov ecx, dword [esp + 8]
lea eax, [ecx + eax*4]
mov ecx, dword [esp + 8]
mov edi, dword [esp + 4]
add ecx, edi
mov dword [esp + 0x10], eax
mov dword [ebx + 8], eax
mov eax, dword [esp + 8]
mov dword [esp + 0xc], eax
mov eax, dword [esp + 8]
mov edx, dword [esp + 0x44]
jmp 0x43efb1
mov eax, ebx
add esp, 0x1c
pop esi
pop edi
pop ebx
pop ebp
ret