Function at 0x4f8490
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0x48
call fcn.0049f020
mov eax, dword [0x621810]
xor eax, esp
mov dword [esp + 0x44], eax
mov eax, dword [esp + 0x4c]
push ebx
push ebp
mov ebp, dword [esp + 0x58]
xor ebx, ebx
cmp ebp, ebx
mov dword [esp + 8], eax
je 0x4f881d
cmp dword [0x634c5c], ebx
push esi
push edi
je 0x4f85ba
lea ecx, [esp + 0x18]
push ecx
call fcn.004fb500
push 0xdf
push str..crypto_randmd_rand.c
push 0x13
push 5
call fcn.004fb8f0
lea edx, [esp + 0x2c]
push edx
push 0x634810
call fcn.004fb540
mov edi, eax
push 0xe1
neg edi
push str..crypto_randmd_rand.c
sbb edi, edi
push 0x13
add edi, 1
push 6
mov dword [esp + 0x40], edi
call fcn.004fb8f0
add esp, 0x2c
cmp edi, ebx
jne 0x4f8534
push 0xe6
push str..crypto_randmd_rand.c
push 0x12
push 9
call fcn.004fb8f0
add esp, 0x10
mov eax, dword [0x634c48]
mov edx, dword [0x634c4c]
mov ecx, dword [0x634c44]
mov dword [esp + 0x20], eax
mov eax, dword [0x634c2c]
mov dword [esp + 0x24], edx
mov edx, dword [0x634c30]
mov dword [esp + 0x40], eax
mov eax, dword [0x634c34]
mov esi, ecx
add ecx, ebp
cmp ecx, 0x3ff
mov dword [esp + 0x44], edx
mov edx, dword [0x634c38]
mov dword [esp + 0x48], eax
mov eax, dword [0x634c3c]
mov dword [esp + 0x4c], edx
mov dword [esp + 0x50], eax
mov dword [0x634c44], ecx
jb 0x4f85c5
mov eax, 0x401005
mul ecx
mov eax, ecx
sub eax, edx
shr eax, 1
add eax, edx
shr eax, 9
imul eax, eax, 0xfffffc01
add ecx, eax
mov dword [0x634c44], ecx
mov dword [0x634c40], 0x3ff
jmp 0x4f85db
mov dword [esp + 0x14], ebx
mov edi, ebx
jmp 0x4f851e
mov eax, dword [0x634c40]
cmp eax, 0x3ff
jae 0x4f85db
cmp ecx, eax
jbe 0x4f85db
mov dword [0x634c40], ecx
mov eax, 0x66666667
imul ebp
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, ebp
sub edx, ecx
xor ecx, ecx
test edx, edx
setg cl
add ecx, eax
add dword [0x634c4c], ecx
cmp edi, ebx
jne 0x4f8620
push 0x106
push str..crypto_randmd_rand.c
push 0x12
push 0xa
call fcn.004fb8f0
add esp, 0x10
lea edx, [esp + 0x28]
push edx
call fcn.004fb9c0
add esp, 4
cmp ebp, ebx
mov dword [esp + 0x18], ebx
jle 0x4f876d
lea esp, [esp]
cmp ebp, 0x14
mov edi, ebp
jle 0x4f864c
mov edi, 0x14
push 0
call fcn.004fcd00
push eax
lea eax, [esp + 0x30]
push eax
call fcn.004fba10
add esp, 0xc
test eax, eax
je 0x4f880e
push 0x14
lea ecx, [esp + 0x44]
push ecx
lea edx, [esp + 0x30]
push edx
call fcn.004fbbc0
add esp, 0xc
test eax, eax
je 0x4f880e
lea ebx, [edi + esi - 0x3ff]
test ebx, ebx
lea ecx, [esi + 0x634818]
lea edx, [esp + 0x28]
jle 0x4f86be
mov eax, edi
sub eax, ebx
push eax
push ecx
push edx
call fcn.004fbbc0
add esp, 0xc
test eax, eax
je 0x4f880e
push ebx
push 0x634818
lea eax, [esp + 0x30]
push eax
jmp 0x4f86c1
push edi
push ecx
push edx
call fcn.004fbbc0
add esp, 0xc
test eax, eax
je 0x4f880e
mov eax, dword [esp + 0x10]
push edi
push eax
lea ecx, [esp + 0x30]
push ecx
call fcn.004fbbc0
add esp, 0xc
test eax, eax
je 0x4f880e
push 8
lea edx, [esp + 0x24]
push edx
lea eax, [esp + 0x30]
push eax
call fcn.004fbbc0
add esp, 0xc
test eax, eax
je 0x4f880e
push 0
lea ecx, [esp + 0x44]
push ecx
lea edx, [esp + 0x30]
push edx
call fcn.004fbbd0
add esp, 0xc
test eax, eax
je 0x4f880e
add dword [esp + 0x24], 1
add dword [esp + 0x10], edi
xor eax, eax
test edi, edi
jle 0x4f8751
mov cl, byte [esp + eax + 0x40]
xor byte [esi + 0x634818], cl
add esi, 1
cmp esi, 0x3ff
jl 0x4f874a
xor esi, esi
add eax, 1
cmp eax, edi
jl 0x4f8733
mov eax, dword [esp + 0x18]
add eax, 0x14
sub ebp, 0x14
cmp eax, dword [esp + 0x60]
mov dword [esp + 0x18], eax
jl 0x4f8640
mov edi, dword [esp + 0x14]
test edi, edi
jne 0x4f8787
push 0x13b
push str..crypto_randmd_rand.c
push 0x12
push 9
call fcn.004fb8f0
add esp, 0x10
xor eax, eax
lea esp, [esp]
movzx edx, byte [esp + eax + 0x40]
xor byte [eax + 0x634c2c], dl
movzx ecx, byte [esp + eax + 0x41]
movzx edx, byte [esp + eax + 0x42]
xor byte [eax + 0x634c2d], cl
xor byte [eax + 0x634c2e], dl
movzx ecx, byte [esp + eax + 0x43]
movzx edx, byte [esp + eax + 0x44]
xor byte [eax + 0x634c2f], cl
xor byte [eax + 0x634c30], dl
add eax, 5
cmp eax, 0x14
jl 0x4f8790
fld qword [0x5bb940]
fld qword [0x634c50]
fcom st(1)
fnstsw ax
fstp st(1)
test ah, 5
jp 0x4f87f2
fadd qword [esp + 0x64]
fstp qword [0x634c50]
jmp 0x4f87f4
fstp st(0)
test edi, edi
jne 0x4f880e
push 0x148
push str..crypto_randmd_rand.c
push 0x12
push 0xa
call fcn.004fb8f0
add esp, 0x10
lea eax, [esp + 0x28]
push eax
call fcn.004fbc50
add esp, 4
pop edi
pop esi
mov ecx, dword [esp + 0x4c]
pop ebp
pop ebx
xor ecx, esp
call fcn.0048b951
add esp, 0x48
ret