Function at 0x420d45
Capabilities:
Encode data using xor
Encrypt data using rc4 prga

Disassembly:
cmp dword [ecx], 0xffffffff
je 0x420db7
push ebp
mov ebp, esp
push ebx
push edi
push esi
and esp, 0xfffffff8
sub esp, 0x38
mov edi, ecx
push 0xadeee8f4
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
lea ecx, [esp + 0x10]
push 8
push 2
push ecx
push dword [edi]
call eax
test eax, eax
jg 0x420dbc
cmp dword [edi], 0xffffffff
je 0x420dbc
push 0x59ea2086
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push 2
push dword [edi]
call eax
push 0x2e775759
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push dword [edi]
call eax
mov dword [edi], 0xffffffff
jmp 0x420ffe
xor eax, eax
ret 4
test eax, eax
jle 0x420ffe
movzx eax, byte [esp + 0x11]
mov ecx, eax
and ecx, 0x7f
mov dword [esp + 0x18], ecx
mov dword [esp + 0x1c], 0
cmp ecx, 0x7f
je 0x420e6e
cmp ecx, 0x7e
jne 0x420efb
mov word [esp], 0
push 0xadeee8f4
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
mov ecx, esp
push 8
push 2
push ecx
push dword [edi]
call eax
test eax, eax
setg bl
jg 0x420e52
cmp dword [edi], 0xffffffff
je 0x420e52
push 0x59ea2086
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push 2
push dword [edi]
call eax
push 0x2e775759
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push dword [edi]
call eax
mov dword [edi], 0xffffffff
movzx eax, word [esp]
rol ax, 8
movzx eax, ax
mov dword [esp + 0x18], eax
mov dword [esp + 0x1c], 0
jmp 0x420ef0
mov dword [esp + 4], 0
mov dword [esp], 0
push 0xadeee8f4
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
mov ecx, esp
push 8
push 8
push ecx
push dword [edi]
call eax
test eax, eax
setg bl
jg 0x420edd
cmp dword [edi], 0xffffffff
je 0x420edd
push 0x59ea2086
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push 2
push dword [edi]
call eax
push 0x2e775759
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push dword [edi]
call eax
mov dword [edi], 0xffffffff
mov eax, dword [esp]
mov ecx, dword [esp + 4]
bswap ecx
bswap eax
mov dword [esp + 0x1c], eax
mov dword [esp + 0x18], ecx
movzx eax, byte [esp + 0x11]
test al, al
jns 0x420f63
jmp 0x420f01
xor ebx, ebx
test al, al
jns 0x420f63
lea esi, [esp + 0x20]
push 0xadeee8f4
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push 8
push 4
push esi
push dword [edi]
call eax
test eax, eax
setg al
jg 0x420f65
cmp dword [edi], 0xffffffff
je 0x420f65
push 0x59ea2086
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push 2
push dword [edi]
call eax
push 0x2e775759
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push dword [edi]
call eax
mov dword [edi], 0xffffffff
xor eax, eax
test bl, bl
je 0x420ffe
mov dword [esp + 0x2c], eax
mov dword [esp + 0x28], edi
push dword [esp + 0x18]
call fcn.00408c10
add esp, 4
mov dword [esp + 0x24], eax
xor edi, edi
xor ecx, ecx
jmp 0x420fa1
add edi, ecx
mov ecx, dword [esp + 0x30]
adc ecx, 0
test eax, eax
jle 0x421040
mov esi, dword [esp + 0x18]
cmp edi, esi
mov eax, ecx
sbb eax, dword [esp + 0x1c]
jae 0x421040
mov dword [esp + 0x30], ecx
sub esi, edi
cmp esi, 0xffff
jl 0x420fc6
mov esi, 0xffff
mov ebx, dword [esp + 0x24]
add ebx, edi
push 0xadeee8f4
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push 8
push esi
push ebx
mov esi, dword [esp + 0x34]
push dword [esi]
call eax
test eax, eax
jg 0x420ff4
cmp dword [esi], 0xffffffff
jne 0x42100a
mov ecx, eax
test eax, eax
jg 0x420f90
xor ecx, ecx
jmp 0x420f90
xor eax, eax
lea esp, [ebp - 0xc]
pop esi
pop edi
pop ebx
pop ebp
ret 4
push 0x59ea2086
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push 2
push dword [esi]
call eax
push 0x2e775759
push dword [0x44bccc]
call fcn.0043fb60
add esp, 8
push dword [esi]
call eax
mov dword [esi], 0xffffffff
mov eax, dword [esp + 0x18]
or eax, dword [esp + 0x1c]
setne al
mov ecx, dword [esp + 0x2c]
and cl, al
cmp cl, 1
jne 0x421083
xor eax, eax
xor ecx, ecx
nop
nop
nop
nop
nop
nop
mov edx, dword [esp + 0x24]
mov esi, eax
and esi, 3
movzx ebx, byte [esp + esi + 0x20]
xor byte [edx + eax], bl
add eax, 1
adc ecx, 0
cmp eax, dword [esp + 0x18]
mov edx, ecx
sbb edx, dword [esp + 0x1c]
jb 0x421060
mov ecx, dword [esp + 0x28]
cmp byte [ecx + 5], 0
je 0x42109c
mov eax, esp
lea edx, [esp + 0x10]
push edx
push eax
call fcn.004224b0
jmp 0x4210a9
mov eax, esp
lea edx, [esp + 0x10]
push edx
push eax
call fcn.00422330
mov eax, dword [esp + 0xc]
mov edx, dword [ebp + 8]
mov dword [edx + 0xc], eax
mov eax, dword [esp + 8]
mov dword [edx + 8], eax
mov eax, dword [esp]
mov ecx, dword [esp + 4]
mov dword [edx + 4], ecx
mov dword [edx], eax
mov al, 1
jmp 0x421000