Function at 0x43f3d0
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
push ebx
push edi
push esi
sub esp, 0x1c
mov dword [esp + 4], 0x7e7f7c7d
mov dword [esp], 0
mov eax, dword [esp]
cmp eax, 3
ja 0x43f431
nop
nop
mov eax, dword [esp]
mov ecx, dword [esp]
movzx ecx, byte [esp + ecx + 4]
lea edx, [eax - 0x4a552c98]
lea esi, [eax + ecx]
add esi, 0xb5aad368
add eax, 0x68
or eax, edx
and eax, ecx
add eax, eax
sub esi, eax
mov dword [esp + 0xc], esi
mov eax, dword [esp + 0xc]
add al, 0xea
mov ecx, dword [esp]
mov byte [esp + ecx + 4], al
inc dword [esp]
mov eax, dword [esp]
cmp eax, 4
jb 0x43f3f0
mov ebp, dword [esp + 0x34]
mov esi, dword [esp + 4]
mov eax, dword [0x44996c]
test eax, eax
je 0x43f495
xor ecx, ecx
mov edx, dword [0x449970]
nop
nop
nop
nop
nop
nop
cmp dword [edx + ecx*8], 0x84aa3bd1
je 0x43f46a
mov edi, ecx
and edi, 1
xor ecx, 1
lea ecx, [ecx + edi*2]
cmp ecx, eax
jb 0x43f450
jmp 0x43f495
mov eax, dword [edx + ecx*8 + 4]
cmp eax, esi
je 0x43f495
lea ecx, [esp + 0x14]
push ecx
push 0
push 0
push 0
push ebp
push dword [esp + 0x44]
push 6
push dword [0x449974]
push eax
call fcn.0043c800
add esp, 0x24
mov esi, eax
mov dword [esp + 0xc], 0x501312ca
mov dword [esp + 0x10], 0
mov dword [esp + 4], 0
mov eax, dword [esp + 4]
cmp eax, 7
ja 0x43f4fd
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
mov eax, dword [esp + 4]
mov ecx, dword [esp + 4]
movzx ecx, byte [esp + ecx + 0xc]
lea edx, [eax + 0xdf]
and edx, ecx
add eax, ecx
add edx, edx
sub eax, edx
add eax, 0x93c0b4df
mov dword [esp], eax
mov eax, dword [esp]
add al, 0xe
mov ecx, dword [esp + 4]
mov byte [esp + ecx + 0xc], al
inc dword [esp + 4]
mov eax, dword [esp + 4]
cmp eax, 8
jb 0x43f4c0
cmp esi, dword [esp + 0xc]
jne 0x43f6e2
push dword [esp + 0x14]
call fcn.0043a6f0
add esp, 4
mov dword [esp + 8], eax
mov ecx, dword [esp + 0x14]
mov dword [esp + 4], 0x7e7f7c7d
mov dword [esp], 0
mov edx, dword [esp]
cmp edx, 3
ja 0x43f582
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
mov edx, dword [esp]
mov esi, dword [esp]
movzx esi, byte [esp + esi + 4]
lea edi, [edx - 0x4a552c98]
lea ebx, [edx + esi]
add ebx, 0xb5aad368
add edx, 0x68
or edx, edi
and edx, esi
add edx, edx
sub ebx, edx
mov dword [esp + 0xc], ebx
mov edx, dword [esp + 0xc]
add dl, 0xea
mov esi, dword [esp]
mov byte [esp + esi + 4], dl
inc dword [esp]
mov edx, dword [esp]
cmp edx, 4
jb 0x43f540
mov edi, dword [esp + 0x3c]
mov esi, dword [esp + 4]
mov edx, dword [0x44996c]
test edx, edx
je 0x43f5e1
mov eax, edi
xor edi, edi
mov ebx, dword [0x449970]
nop
nop
cmp dword [ebx + edi*8], 0x84aa3bd1
je 0x43f5b2
inc edi
cmp edx, edi
jne 0x43f5a0
mov edi, eax
jmp 0x43f5e1
mov edx, dword [ebx + edi*8 + 4]
cmp edx, esi
mov edi, eax
je 0x43f5e1
lea esi, [esp + 0x14]
push esi
push ecx
mov eax, dword [esp + 0x10]
push eax
push 0
push ebp
push dword [esp + 0x44]
push 6
push dword [0x449974]
push edx
call fcn.0043c800
add esp, 0x24
mov esi, eax
test edi, edi
je 0x43f6d6
test esi, esi
js 0x43f6d6
mov ecx, dword [esp + 0x38]
test ecx, ecx
je 0x43f6cb
mov eax, dword [esp + 8]
mov edx, dword [eax + 0xc]
shr edx, 1
mov eax, dword [edi]
cmp eax, edx
jb 0x43f60e
mov eax, edx
test eax, eax
je 0x43f6c6
mov edx, dword [esp + 8]
add edx, 0x10
mov ebx, eax
and ebx, 3
je 0x43f65c
mov dword [esp + 0x18], eax
xor edi, edi
nop
nop
nop
nop
nop
nop
movzx ebp, word [edx]
xor eax, eax
test bp, bp
setne al
lea edx, [edx + eax*2]
mov word [ecx], bp
add ecx, 2
inc edi
cmp ebx, edi
jne 0x43f630
mov eax, dword [esp + 0x18]
mov ebp, eax
sub ebp, edi
mov edi, dword [esp + 0x3c]
cmp eax, 4
jae 0x43f670
jmp 0x43f6c6
mov ebp, eax
cmp eax, 4
jb 0x43f6c6
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
movzx eax, word [edx]
xor ebx, ebx
test ax, ax
setne bl
lea edi, [edx + ebx*2]
mov word [ecx], ax
movzx eax, word [edx + ebx*2]
xor edx, edx
test ax, ax
setne dl
lea ebx, [edi + edx*2]
mov word [ecx + 2], ax
movzx eax, word [edi + edx*2]
xor edx, edx
test ax, ax
setne dl
lea edi, [ebx + edx*2]
mov word [ecx + 4], ax
movzx eax, word [ebx + edx*2]
xor edx, edx
test ax, ax
setne dl
mov word [ecx + 6], ax
add ecx, 8
lea edx, [edi + edx*2]
add ebp, 0xfffffffc
jne 0x43f670
mov edi, dword [esp + 0x3c]
mov word [ecx], 0
mov eax, dword [esp + 8]
mov eax, dword [eax + 0xc]
shr eax, 1
mov dword [edi], eax
push dword [esp + 8]
call fcn.0043a780
add esp, 4
mov eax, esi
add esp, 0x1c
pop esi
pop edi
pop ebx
pop ebp
ret