Function at 0x43fa44
Capabilities:
Encode data using xor
Encrypt data using rc4 ksa

Disassembly:
push ebp
mov ebp, esp
mov eax, dword [esi + 0xb4]
push ebx
push edi
mov edi, dword [esi + 0x7c]
sub edi, dword [ebp + 0xc]
mov ecx, eax
imul ecx, dword [ebp + 8]
dec edi
imul edi, dword [esi + 0xac]
add edi, ecx
add edi, dword [esi + 0xa8]
xor edx, edx
cmp dword [esi + 0xc0], edx
jne 0x43fe9b
cmp dword [esi + 0xc4], edx
jne 0x43fe9b
mov ecx, dword [esi + 0xb8]
test cl, 2
je 0x43fac3
cmp dword [ebp + 0x10], edx
je 0x43febd
mov al, byte [esi + 0xcc]
xor byte [edi + 2], al
mov al, byte [esi + 0xd0]
xor byte [edi + 1], al
mov al, byte [esi + 0xd4]
xor byte [edi], al
add edi, dword [esi + 0xb4]
dec dword [ebp + 0x10]
jne 0x43fa99
jmp 0x43febd
test cx, 0x100
je 0x43fb03
cmp dword [ebp + 0x10], edx
je 0x43febd
mov al, byte [esi + 0xcc]
mov byte [edi + 2], al
mov al, byte [esi + 0xd0]
mov byte [edi + 1], al
mov al, byte [esi + 0xd4]
mov byte [edi], al
mov al, byte [esi + 0xd8]
mov byte [edi + 3], al
add edi, 4
dec dword [ebp + 0x10]
jne 0x43fad3
jmp 0x43febd
test cl, 8
je 0x43fb32
cmp eax, 4
jne 0x43febd
cmp dword [ebp + 0x10], edx
je 0x43febd
add edi, 3
mov al, byte [esi + 0xd8]
mov byte [edi], al
add edi, 4
dec dword [ebp + 0x10]
jne 0x43fb1d
jmp 0x43febd
test cl, 0x10
je 0x43fce7
cmp eax, 4
jne 0x43fc87
cmp dword [ebp + 0x10], edx
je 0x43febd
mov ebx, dword [esi + 0xd8]
test ebx, ebx
movzx edx, byte [edi + 3]
jne 0x43fb61
movzx eax, byte [edi + 2]
jmp 0x43fba0
test edx, edx
jne 0x43fb70
mov eax, dword [esi + 0xcc]
cdq
idiv ebx
jmp 0x43fba0
movzx eax, byte [edi + 2]
imul ebx, ebx, 0xff
mov ecx, dword [esi + 0xdc]
imul eax, ecx
imul eax, edx
mov edx, dword [esi + 0xcc]
imul edx, edx, 0xff
add eax, edx
movzx edx, byte [edi + 3]
imul ecx, edx
cdq
add ecx, ebx
idiv ecx
mov byte [edi + 2], al
mov ebx, dword [esi + 0xd8]
test ebx, ebx
jne 0x43fbb3
movzx eax, byte [edi + 1]
jmp 0x43fbf6
movzx edx, byte [edi + 3]
test edx, edx
jne 0x43fbc6
mov eax, dword [esi + 0xd0]
cdq
idiv ebx
jmp 0x43fbf6
movzx eax, byte [edi + 1]
imul ebx, ebx, 0xff
mov ecx, dword [esi + 0xdc]
imul eax, ecx
imul eax, edx
mov edx, dword [esi + 0xd0]
imul edx, edx, 0xff
add eax, edx
movzx edx, byte [edi + 3]
imul ecx, edx
cdq
add ecx, ebx
idiv ecx
mov byte [edi + 1], al
mov ebx, dword [esi + 0xd8]
test ebx, ebx
jne 0x43fc08
movzx eax, byte [edi]
jmp 0x43fc4e
movzx eax, byte [edi + 3]
test eax, eax
jne 0x43fc1b
mov eax, dword [esi + 0xd4]
cdq
idiv ebx
jmp 0x43fc4e
movzx eax, byte [edi]
imul ebx, ebx, 0xff
mov ecx, dword [esi + 0xdc]
movzx edx, byte [edi + 3]
imul eax, ecx
imul eax, edx
mov edx, dword [esi + 0xd4]
imul edx, edx, 0xff
add eax, edx
movzx edx, byte [edi + 3]
imul ecx, edx
cdq
add ecx, ebx
idiv ecx
movzx ecx, byte [edi + 3]
mov byte [edi], al
mov eax, dword [esi + 0xdc]
imul eax, ecx
mov ecx, dword [esi + 0xd8]
imul ecx, ecx, 0xff
add eax, ecx
cdq
mov ecx, 0xff
idiv ecx
add edi, 4
dec dword [ebp + 0x10]
mov byte [edi - 1], al
jne 0x43fb4d
jmp 0x43febd
cmp dword [ebp + 0x10], edx
je 0x43febd
movzx eax, byte [edi + 2]
imul eax, dword [esi + 0xdc]
add eax, dword [esi + 0xcc]
mov ecx, 0xff
cdq
mov ebx, ecx
idiv ebx
mov byte [edi + 2], al
movzx eax, byte [edi + 1]
imul eax, dword [esi + 0xdc]
add eax, dword [esi + 0xd0]
cdq
idiv ebx
mov byte [edi + 1], al
movzx eax, byte [edi]
imul eax, dword [esi + 0xdc]
add eax, dword [esi + 0xd4]
cdq
idiv ecx
mov byte [edi], al
add edi, 3
dec dword [ebp + 0x10]
jne 0x43fc90
jmp 0x43febd
test cl, 0x20
je 0x43fe6f
cmp eax, 4
jne 0x43fe12
cmp dword [ebp + 0x10], edx
je 0x43febd
mov ebx, dword [esi + 0xd8]
test ebx, ebx
movzx edx, byte [edi + 3]
jne 0x43fd16
movzx eax, byte [edi + 2]
jmp 0x43fd55
test edx, edx
jne 0x43fd25
mov eax, dword [esi + 0xcc]
cdq
idiv ebx
jmp 0x43fd55
movzx eax, byte [edi + 2]
imul ebx, ebx, 0xff
mov ecx, dword [esi + 0xdc]
imul eax, ecx
imul eax, edx
mov edx, dword [esi + 0xcc]
imul edx, edx, 0xff
add eax, edx
movzx edx, byte [edi + 3]
imul ecx, edx
cdq
add ecx, ebx
idiv ecx
mov byte [edi + 2], al
mov ebx, dword [esi + 0xd8]
test ebx, ebx
jne 0x43fd68
movzx eax, byte [edi + 1]
jmp 0x43fdab
movzx edx, byte [edi + 3]
test edx, edx
jne 0x43fd7b
mov eax, dword [esi + 0xd0]
cdq
idiv ebx
jmp 0x43fdab
movzx eax, byte [edi + 1]
imul ebx, ebx, 0xff
mov ecx, dword [esi + 0xdc]
imul eax, ecx
imul eax, edx
mov edx, dword [esi + 0xd0]
imul edx, edx, 0xff
add eax, edx
movzx edx, byte [edi + 3]
imul ecx, edx
cdq
add ecx, ebx
idiv ecx
mov byte [edi + 1], al
mov ebx, dword [esi + 0xd8]
test ebx, ebx
jne 0x43fdbd
movzx eax, byte [edi]
jmp 0x43fdff
movzx edx, byte [edi + 3]
test edx, edx
jne 0x43fdd0
mov eax, dword [esi + 0xd4]
cdq
idiv ebx
jmp 0x43fdff
movzx eax, byte [edi]
imul ebx, ebx, 0xff
mov ecx, dword [esi + 0xdc]
imul eax, ecx
imul eax, edx
mov edx, dword [esi + 0xd4]
imul edx, edx, 0xff
add eax, edx
movzx edx, byte [edi + 3]
imul ecx, edx
cdq
add ecx, ebx
idiv ecx
mov byte [edi], al
add edi, 4
dec dword [ebp + 0x10]
jne 0x43fd02
jmp 0x43febd
cmp dword [ebp + 0x10], edx
je 0x43febd
movzx eax, byte [edi + 2]
imul eax, dword [esi + 0xdc]
add eax, dword [esi + 0xcc]
mov ecx, 0xff
cdq
mov ebx, ecx
idiv ebx
mov byte [edi + 2], al
movzx eax, byte [edi + 1]
imul eax, dword [esi + 0xdc]
add eax, dword [esi + 0xd0]
cdq
idiv ebx
mov byte [edi + 1], al
movzx eax, byte [edi]
imul eax, dword [esi + 0xdc]
add eax, dword [esi + 0xd4]
cdq
idiv ecx
mov byte [edi], al
add edi, 3
dec dword [ebp + 0x10]
jne 0x43fe1b
jmp 0x43febd
cmp dword [ebp + 0x10], edx
je 0x43febd
mov al, byte [esi + 0xcc]
mov byte [edi + 2], al
mov al, byte [esi + 0xd0]
mov byte [edi + 1], al
mov al, byte [esi + 0xd4]
mov byte [edi], al
add edi, dword [esi + 0xb4]
dec dword [ebp + 0x10]
jne 0x43fe74
jmp 0x43febd
cmp dword [ebp + 0x10], edx
je 0x43febd
push dword [ebp + 0xc]
mov eax, esi
push dword [ebp + 8]
call fcn.0043f5ab
add edi, dword [esi + 0xb4]
inc dword [ebp + 8]
dec dword [ebp + 0x10]
pop ecx
pop ecx
jne 0x43fea0
pop edi
pop ebx
pop ebp
ret