Function at 0x404520
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push edi
mov edi, eax
push esi
push ebx
sub esp, 0x6c
fld xword [ebp + 8]
fld st(0)
fstp xword [ebp - 0x40]
fxam
wait
fnstsw ax
and ax, 0x4500
cmp ax, 0x100
je 0x404a65
movzx edx, word [ebp - 0x38]
mov ebx, edx
and ebx, 0x8000
jne 0x4046a0
fxam
wait
fnstsw ax
fstp st(0)
and ax, 0x4500
cmp ax, 0x500
je 0x404a83
and dx, 0x7fff
je 0x404730
lea esi, [edx - 0x3fff]
mov eax, dword [ebp - 0x40]
mov edx, dword [ebp - 0x3c]
mov ebx, dword [edi + 0xc]
cmp ebx, 0xe
jbe 0x4046b6
mov ecx, edx
or ecx, eax
je 0x404a96
lea ecx, [ebp - 0x2a]
mov dword [ebp - 0x5c], ecx
mov dword [ebp - 0x54], ecx
mov dword [ebp - 0x58], edi
jmp 0x404606
mov ecx, dword [ebp - 0x58]
mov ecx, dword [ecx + 0xc]
test ecx, ecx
jle 0x4045bb
mov ebx, dword [ebp - 0x58]
sub ecx, 1
mov dword [ebx + 0xc], ecx
mov ecx, dword [ebp - 0x54]
shrd eax, edx, 4
shr edx, 4
test edi, edi
mov dword [ebp - 0x50], ecx
je 0x404678
mov ecx, dword [ebp - 0x50]
add ecx, 1
cmp edi, 9
mov dword [ebp - 0x54], ecx
jle 0x404697
lea ecx, [edi + 0x37]
mov edi, dword [ebp - 0x58]
mov edi, dword [edi + 4]
mov dword [ebp - 0x60], edi
movzx ebx, byte [ebp - 0x60]
and ebx, 0x20
or ecx, ebx
mov edi, dword [ebp - 0x50]
mov byte [edi], cl
mov edi, edx
or edi, eax
je 0x404766
mov edi, eax
mov ecx, eax
and edi, 0xf
mov ebx, edi
xor ecx, edi
sar ebx, 0x1f
xor ebx, edx
or ebx, ecx
jne 0x4045a8
mov ecx, dword [ebp - 0x5c]
cmp dword [ebp - 0x54], ecx
ja 0x404640
mov ecx, dword [ebp - 0x58]
test byte [ecx + 5], 8
jne 0x404640
mov ecx, dword [ebp - 0x54]
mov dword [ebp - 0x50], ecx
mov ecx, dword [ebp - 0x58]
mov ebx, dword [ecx + 0xc]
test ebx, ebx
jle 0x40464c
nop
lea esi, [esi]
mov ecx, dword [ebp - 0x54]
lea ebx, [ecx + 1]
mov dword [ebp - 0x50], ebx
mov byte [ecx], 0x2e
mov ecx, eax
xor ecx, 1
or ecx, edx
je 0x40466c
lea ecx, [esi - 1]
shrd eax, edx, 1
mov esi, ecx
mov ebx, eax
shr edx, 1
xor ebx, 1
or ebx, edx
lea ecx, [esi - 1]
jne 0x404658
xor eax, eax
xor edx, edx
test edi, edi
jne 0x4045d0
mov ecx, dword [ebp - 0x5c]
cmp dword [ebp - 0x50], ecx
ja 0x40468e
mov ecx, dword [ebp - 0x58]
mov ecx, dword [ecx + 0xc]
test ecx, ecx
js 0x404845
mov ecx, dword [ebp - 0x50]
add ecx, 1
mov dword [ebp - 0x54], ecx
lea ecx, [edi + 0x30]
jmp 0x4045f7
or dword [edi + 4], 0x80
jmp 0x404558
shld edx, eax, 1
add eax, eax
test edx, edx
jns 0x4046b0
mov ecx, 0xe
shrd eax, edx, 1
sub ecx, ebx
shr edx, 1
shl ecx, 2
mov dword [ebp - 0x50], eax
mov eax, 4
mov dword [ebp - 0x4c], edx
xor edx, edx
shld edx, eax, cl
shl eax, cl
test cl, 0x20
je 0x4046e5
mov edx, eax
xor eax, eax
add dword [ebp - 0x50], eax
adc dword [ebp - 0x4c], edx
mov edx, dword [ebp - 0x4c]
mov eax, dword [ebp - 0x50]
test edx, edx
js 0x404a5d
shld edx, eax, 1
add eax, eax
mov dword [ebp - 0x50], eax
mov dword [ebp - 0x4c], edx
mov edx, dword [ebp - 0x4c]
mov ecx, 0xf
mov eax, dword [ebp - 0x50]
sub ecx, ebx
shl ecx, 2
shrd eax, edx, cl
shr edx, cl
test cl, 0x20
je 0x40459a
mov eax, edx
xor edx, edx
jmp 0x40459a
mov edx, dword [ebp - 0x3c]
mov eax, dword [ebp - 0x40]
mov esi, edx
or esi, eax
je 0x404a17
test edx, edx
js 0x404acc
mov ecx, 0xffffc001
lea esi, [esi]
shld edx, eax, 1
mov ebx, ecx
add eax, eax
sub ecx, 1
test edx, edx
jns 0x404750
mov esi, ebx
jmp 0x404584
mov eax, dword [ebp - 0x5c]
cmp dword [ebp - 0x54], eax
mov edi, dword [ebp - 0x58]
je 0x404ac7
mov eax, dword [edi + 4]
mov dword [ebp - 0x50], eax
mov eax, dword [edi + 8]
test eax, eax
mov dword [ebp - 0x60], eax
jle 0x404a05
mov edx, dword [edi + 0xc]
movsx esi, si
mov eax, dword [ebp - 0x54]
sub eax, dword [ebp - 0x5c]
mov dword [ebp - 0x58], esi
test edx, edx
jle 0x40479e
add eax, edx
mov edx, dword [ebp - 0x50]
and edx, 0x1c0
cmp edx, 1
sbb edx, edx
lea esi, [eax + edx + 6]
mov eax, dword [ebp - 0x58]
mov edx, 0x66666667
imul edx
mov eax, dword [ebp - 0x58]
sar edx, 2
sar eax, 0x1f
sub edx, eax
mov ecx, edx
je 0x404abb
mov ebx, 2
mov eax, 0x66666667
add esi, 1
imul ecx
add ebx, 1
sar ecx, 0x1f
sar edx, 2
sub edx, ecx
mov ecx, edx
jne 0x4047d2
movsx eax, bx
mov dword [ebp - 0x64], eax
cmp dword [ebp - 0x60], esi
jle 0x404850
mov eax, dword [ebp - 0x60]
sub eax, esi
test dword [ebp - 0x50], 0x600
jne 0x404a22
lea edx, [eax - 1]
test eax, eax
mov dword [edi + 8], edx
jle 0x404857
mov edx, edi
mov eax, 0x20
call fcn.00403650
mov eax, dword [edi + 8]
lea edx, [eax - 1]
test eax, eax
mov dword [edi + 8], edx
jg 0x404812
mov eax, dword [edi + 4]
mov dword [ebp - 0x50], eax
test byte [ebp - 0x50], 0x80
je 0x40485d
mov edx, edi
mov eax, 0x2d
call fcn.00403650
jmp 0x404874
mov edi, dword [ebp - 0x50]
mov dword [ebp - 0x54], edi
jmp 0x4045fc
mov dword [edi + 8], 0xffffffff
test byte [ebp - 0x50], 0x80
jne 0x404837
test dword [ebp - 0x50], 0x100
jne 0x404a2a
test byte [ebp - 0x50], 0x40
jne 0x404a4c
mov edx, edi
mov eax, 0x30
call fcn.00403650
mov eax, dword [edi + 4]
mov edx, edi
and eax, 0x20
or eax, 0x58
call fcn.00403650
mov eax, dword [edi + 8]
test eax, eax
jle 0x4048bc
test byte [edi + 5], 2
je 0x4048bc
sub eax, 1
mov dword [edi + 8], eax
mov edx, edi
mov eax, 0x30
call fcn.00403650
mov eax, dword [edi + 8]
lea edx, [eax - 1]
test eax, eax
mov dword [edi + 8], edx
jg 0x4048a3
mov eax, dword [ebp - 0x5c]
cmp dword [ebp - 0x54], eax
mov ebx, dword [ebp - 0x54]
ja 0x4048e0
jmp 0x40496d
mov edx, edi
call fcn.00403650
cmp ebx, dword [ebp - 0x5c]
je 0x40496d
sub ebx, 1
movsx eax, byte [ebx]
cmp eax, 0x2e
jne 0x4048d0
cmp dword [edi + 0x10], 0xfffffffd
je 0x4049c1
movzx edx, word [edi + 0x14]
test dx, dx
je 0x4049b0
mov eax, dword [edi + 0x10]
mov dword [ebp - 0x50], esp
add eax, 0xf
and eax, 0xfffffff0
call fcn.00401ee0
sub esp, eax
lea esi, [esp + 0x10]
lea eax, [ebp - 0x44]
mov dword [ebp - 0x44], 0
mov dword [esp + 8], eax
mov dword [esp + 4], edx
mov dword [esp], esi
call fcn.00405910
test eax, eax
jle 0x404a3b
add eax, esi
mov dword [ebp - 0x54], ebx
mov ebx, esi
mov esi, eax
add ebx, 1
movsx eax, byte [ebx - 1]
mov edx, edi
call fcn.00403650
cmp ebx, esi
jne 0x404944
mov ebx, dword [ebp - 0x54]
mov esp, dword [ebp - 0x50]
jmp 0x4048d7
mov edx, edi
mov eax, 0x30
call fcn.00403650
mov eax, dword [edi + 0xc]
lea edx, [eax - 1]
test eax, eax
mov dword [edi + 0xc], edx
jg 0x404961
mov eax, dword [edi + 4]
mov edx, edi
and eax, 0x20
or eax, 0x50
call fcn.00403650
mov eax, dword [ebp - 0x64]
mov ecx, edi
add dword [edi + 8], eax
mov eax, dword [ebp - 0x58]
or dword [edi + 4], 0x1c0
cdq
call fcn.00403900
lea esp, [ebp - 0xc]
pop ebx
pop esi
pop edi
pop ebp
ret
mov edx, edi
mov eax, 0x2e
call fcn.00403650
jmp 0x4048d7
mov dword [ebp - 0x44], 0
lea esi, [ebp - 0x44]
call sub.msvcrt.dll_localeconv
mov dword [esp + 0xc], esi
mov dword [esp + 8], 0x10
mov eax, dword [eax]
mov dword [esp + 4], eax
lea eax, [ebp - 0x46]
mov dword [esp], eax
call fcn.004055e0
test eax, eax
jle 0x404a7a
movzx edx, word [ebp - 0x46]
mov word [edi + 0x14], dx
mov dword [edi + 0x10], eax
jmp 0x4048f9
movsx eax, si
mov dword [ebp - 0x64], 2
mov dword [ebp - 0x58], eax
jmp 0x404857
xor esi, esi
xor eax, eax
xor edx, edx
jmp 0x404584
mov dword [edi + 8], eax
jmp 0x404857
mov edx, edi
mov eax, 0x2b
call fcn.00403650
jmp 0x404874
mov edx, edi
mov eax, 0x2e
call fcn.00403650
jmp 0x404959
mov edx, edi
mov eax, 0x20
call fcn.00403650
jmp 0x404874
add esi, 1
jmp 0x404705
fstp st(0)
mov ecx, edi
mov edx, 0x40a40c
xor eax, eax
call fcn.00403870
jmp 0x4049a2
movzx edx, word [edi + 0x14]
jmp 0x4049fd
mov ecx, edi
mov edx, 0x40a410
mov eax, ebx
call fcn.00403870
jmp 0x4049a2
lea eax, [ebp - 0x2a]
mov dword [ebp - 0x5c], eax
test ebx, ebx
mov eax, dword [edi + 4]
jle 0x404ad6
mov dword [ebp - 0x50], eax
mov byte [ebp - 0x2a], 0x2e
lea eax, [ebp - 0x29]
lea edx, [eax + 1]
mov dword [ebp - 0x54], edx
mov byte [eax], 0x30
jmp 0x40477b
mov dword [ebp - 0x64], 2
jmp 0x4047f1
mov ebx, dword [edi + 0xc]
jmp 0x404a9c
mov esi, 0xffffc002
jmp 0x404584
mov edx, eax
and dh, 8
mov dword [ebp - 0x50], eax
mov eax, dword [ebp - 0x5c]
je 0x404aad
jmp 0x404aa6