Function at 0x4d3630
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0x3c
call fcn.004e47d0
mov eax, dword [0x54b2c0]
xor eax, esp
mov dword [esp + 0x38], eax
cmp dword [0x551b1c], 0
mov eax, dword [esp + 0x40]
push ebx
mov dword [esp + 0xc], eax
je 0x4d3740
push 0xdc
push 0x510f10
push 0x13
push 5
call fcn.004cacf0
call fcn.004cacd0
xor ebx, ebx
cmp dword [0x551b20], eax
push 0xde
sete bl
push 0x510f10
push 0x13
push 6
mov dword [esp + 0x24], ebx
call fcn.004cacf0
add esp, 0x20
test ebx, ebx
jne 0x4d36b2
push 0xe3
push 0x510f10
push 0x12
push 9
call fcn.004cacf0
add esp, 0x10
mov edx, dword [0x551b08]
mov eax, dword [0x551b0c]
mov ecx, dword [0x551b04]
mov dword [esp + 0x10], edx
mov edx, dword [0x551aec]
push esi
mov esi, dword [esp + 0x4c]
mov dword [esp + 0x18], eax
mov eax, dword [0x551af0]
mov dword [esp + 0x2c], edx
mov edx, dword [0x551af4]
push edi
mov edi, ecx
add ecx, esi
cmp ecx, 0x3ff
mov dword [esp + 0x34], eax
mov eax, dword [0x551af8]
mov dword [esp + 0x38], edx
mov edx, dword [0x551afc]
mov dword [esp + 0x3c], eax
mov dword [esp + 0x40], edx
mov dword [0x551b04], ecx
jl 0x4d3751
mov eax, 0x7fdff7fd
imul ecx
sub edx, ecx
sar edx, 9
mov eax, edx
shr eax, 0x1f
add eax, edx
imul eax, eax, 0x3ff
add ecx, eax
mov dword [0x551b04], ecx
mov dword [0x551b00], 0x3ff
jmp 0x4d3767
mov dword [esp + 4], 0
mov ebx, dword [esp + 4]
jmp 0x4d369c
mov eax, dword [0x551b00]
cmp eax, 0x3ff
jge 0x4d3767
cmp ecx, eax
jle 0x4d3767
mov dword [0x551b00], ecx
mov eax, 0x66666667
imul esi
sar edx, 3
mov eax, edx
shr eax, 0x1f
add eax, edx
lea ecx, [eax + eax*4]
add ecx, ecx
add ecx, ecx
mov edx, esi
sub edx, ecx
xor ecx, ecx
test edx, edx
setg cl
add ecx, eax
add dword [0x551b0c], ecx
test ebx, ebx
jne 0x4d37ac
push 0x103
push 0x510f10
push 0x12
push 0xa
call fcn.004cacf0
add esp, 0x10
lea edx, [esp + 0x20]
push edx
call fcn.004d8680
add esp, 4
test esi, esi
jle 0x4d38bf
push ebp
mov ebp, esi
dec esi
mov eax, 0xcccccccd
mul esi
shr edx, 4
inc edx
mov dword [esp + 0x14], edx
cmp ebp, 0x14
mov esi, ebp
jle 0x4d37e0
mov esi, 0x14
push 0
call fcn.004d89e0
push eax
lea eax, [esp + 0x2c]
push eax
call fcn.004d8760
push 0x14
lea ecx, [esp + 0x44]
push ecx
lea edx, [esp + 0x38]
push edx
call fcn.004d87f0
lea ebx, [esi + edi - 0x3ff]
add esp, 0x18
lea ecx, [edi + 0x5516d8]
lea edx, [esp + 0x24]
test ebx, ebx
jle 0x4d383c
mov eax, esi
sub eax, ebx
push eax
push ecx
push edx
call fcn.004d87f0
push ebx
lea eax, [esp + 0x34]
push 0x5516d8
push eax
call fcn.004d87f0
add esp, 0x18
jmp 0x4d3847
push esi
push ecx
push edx
call fcn.004d87f0
add esp, 0xc
mov ebx, dword [esp + 0x18]
push esi
lea eax, [esp + 0x28]
push ebx
push eax
call fcn.004d87f0
push 8
lea ecx, [esp + 0x2c]
push ecx
lea edx, [esp + 0x38]
push edx
call fcn.004d87f0
push 0
lea eax, [esp + 0x50]
push eax
lea ecx, [esp + 0x44]
push ecx
call fcn.004d8800
mov ecx, 1
add dword [esp + 0x44], ecx
add ebx, esi
add esp, 0x24
xor eax, eax
mov dword [esp + 0x18], ebx
test esi, esi
jle 0x4d38ad
mov dl, byte [esp + eax + 0x34]
xor byte [edi + 0x5516d8], dl
add edi, ecx
cmp edi, 0x3ff
jl 0x4d38a7
xor edi, edi
add eax, ecx
cmp eax, esi
jl 0x4d3891
sub ebp, 0x14
sub dword [esp + 0x14], ecx
jne 0x4d37d4
mov ebx, dword [esp + 0x10]
pop ebp
lea eax, [esp + 0x20]
push eax
call fcn.004d8880
add esp, 4
pop edi
pop esi
test ebx, ebx
jne 0x4d38e8
push 0x12e
push 0x510f10
push 0x12
push 9
call fcn.004cacf0
add esp, 0x10
xor eax, eax
lea ebx, [ebx]
movzx ecx, byte [esp + eax + 0x28]
xor byte [eax + 0x551aec], cl
movzx edx, byte [esp + eax + 0x29]
movzx ecx, byte [esp + eax + 0x2a]
xor byte [eax + 0x551aed], dl
xor byte [eax + 0x551aee], cl
movzx edx, byte [esp + eax + 0x2b]
movzx ecx, byte [esp + eax + 0x2c]
xor byte [eax + 0x551aef], dl
xor byte [eax + 0x551af0], cl
add eax, 5
cmp eax, 0x14
jl 0x4d38f0
fld qword [0x510f08]
fld qword [0x551b10]
fcom st(1)
fnstsw ax
fstp st(1)
test ah, 5
jp 0x4d3952
fadd qword [esp + 0x4c]
fstp qword [0x551b10]
jmp 0x4d3954
fstp st(0)
test ebx, ebx
pop ebx
jne 0x4d396f
push 0x139
push 0x510f10
push 0x12
push 0xa
call fcn.004cacf0
add esp, 0x10
mov ecx, dword [esp + 0x38]
xor ecx, esp
call fcn.004e0040
add esp, 0x3c
ret