Function at 0x58c530
Capabilities:
Parse credit card information

Disassembly:
mov ecx, dword fs:[0x14]
mov ecx, dword [ecx]
cmp esp, dword [ecx + 8]
jbe 0x58cb47
sub esp, 0x40
mov eax, dword [esp + 0x48]
test eax, eax
je 0x58c5a6
lea ecx, [0x63efa0]
mov dword [esp], ecx
mov dword [esp + 4], 0
shr eax, 1
mov dword [esp + 0x28], eax
mov dword [esp + 8], eax
call fcn.00447490
mov eax, dword [esp + 0xc]
mov ecx, dword [esp + 0x44]
cmp byte [ecx], 0x22
jne 0x58c59a
mov edx, dword [esp + 0x48]
dec edx
mov ebx, edx
neg edx
sar edx, 0x1f
and edx, 1
add ecx, edx
mov edx, dword [esp + 0x28]
xor ebp, ebp
jmp 0x58c90a
mov edx, dword [esp + 0x28]
mov ebx, dword [esp + 0x48]
xor ebp, ebp
jmp 0x58c5ee
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 0
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov byte [esp + 0x5c], 0
add esp, 0x40
ret
xchg ebp, ecx
mov byte [ebx + eax - 1], cl
xchg ebp, ecx
lea esi, [edi - 1]
mov edi, esi
xchg esi, ebx
neg ebx
xchg esi, ebx
sar esi, 0x1f
and esi, 1
add ecx, esi
mov ebp, ebx
mov ebx, edi
test ebx, ebx
je 0x58c76a
movzx esi, byte [ecx]
xchg esi, eax
cmp al, 0x5c
xchg esi, eax
jne 0x58c621
lea esi, [ebx - 1]
mov edi, esi
xchg esi, ebx
neg ebx
xchg esi, ebx
sar esi, 0x1f
and esi, 1
add ecx, esi
cmp ebx, 1
jne 0x58c6e5
jmp 0x58c741
lea edi, [esi - 0x30]
xchg edi, eax
cmp al, 9
xchg edi, eax
jbe 0x58c6e3
lea edi, [esi - 0x61]
xchg edi, eax
cmp al, 0x19
xchg edi, eax
jbe 0x58c6e3
lea edi, [esi - 0x41]
xchg edi, eax
cmp al, 0x19
xchg edi, eax
jbe 0x58c6e3
xchg esi, eax
cmp al, 0x21
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x23
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x24
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x25
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x26
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x27
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x2a
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x2b
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x2d
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x2f
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x3d
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x3f
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x5e
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x5f
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x60
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x7b
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x7c
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x7d
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x7e
xchg esi, eax
je 0x58c6e3
xchg esi, eax
cmp al, 0x2e
xchg esi, eax
jne 0x58c76a
mov edi, ebx
lea ebx, [ebp + 1]
movzx ebp, byte [ecx]
cmp edx, ebx
jae 0x58c5cf
mov dword [esp + 0x30], edi
xchg ebp, eax
mov byte [esp + 0x21], al
xchg ebp, eax
mov dword [esp + 0x3c], ecx
mov dword [esp], eax
mov dword [esp + 4], ebx
mov dword [esp + 8], edx
mov dword [esp + 0xc], 1
lea eax, [0x63efa0]
mov dword [esp + 0x10], eax
call fcn.00447550
mov eax, dword [esp + 0x14]
mov ebx, dword [esp + 0x18]
mov edx, dword [esp + 0x1c]
mov ecx, dword [esp + 0x3c]
movzx ebp, byte [esp + 0x21]
mov edi, dword [esp + 0x30]
jmp 0x58c5cf
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 0
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov byte [esp + 0x5c], 0
add esp, 0x40
ret
test ebp, ebp
je 0x58c809
mov word [esp + 0x22], 0
mov word [esp + 0x22], 0x2e2e
cmp byte [eax], 0x2e
je 0x58c7ce
lea esi, [ebp + eax - 1]
cmp byte [esi], 0x2e
je 0x58c7ce
mov dword [esp + 0x2c], ebx
mov dword [esp + 0x34], eax
mov dword [esp + 0x24], ebp
mov dword [esp + 0x38], ecx
nop
mov dword [esp], eax
mov dword [esp + 4], ebp
mov dword [esp + 8], edx
lea ecx, [esp + 0x22]
mov dword [esp + 0xc], ecx
mov dword [esp + 0x10], 2
mov dword [esp + 0x14], 2
call fcn.00484380
cmp dword [esp + 0x18], 0xffffffff
je 0x58c7f7
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 0
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov byte [esp + 0x5c], 0
add esp, 0x40
ret
mov eax, dword [esp + 0x2c]
mov ecx, dword [esp + 0x38]
mov edx, dword [esp + 0x24]
mov ebx, dword [esp + 0x34]
jmp 0x58c832
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 0
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov byte [esp + 0x5c], 0
add esp, 0x40
ret
test eax, eax
je 0x58c83b
cmp byte [ecx], 0x40
je 0x58c864
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 0
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov byte [esp + 0x5c], 0
add esp, 0x40
ret
mov dword [esp + 0x24], edx
mov dword [esp + 0x34], ebx
dec eax
mov dword [esp + 0x30], eax
mov edx, eax
neg eax
sar eax, 0x1f
and eax, 1
add eax, ecx
mov dword [esp + 0x3c], eax
mov dword [esp], eax
mov dword [esp + 4], edx
call fcn.0058cb60
movzx eax, byte [esp + 0x14]
test al, al
je 0x58c8db
mov dword [esp], 0
mov eax, dword [esp + 0x34]
mov dword [esp + 4], eax
mov eax, dword [esp + 0x24]
mov dword [esp + 8], eax
call fcn.0044afd0
mov eax, dword [esp + 0xc]
mov ecx, dword [esp + 0x10]
mov dword [esp + 0x4c], eax
mov dword [esp + 0x50], ecx
mov eax, dword [esp + 0x3c]
mov dword [esp + 0x54], eax
mov eax, dword [esp + 0x30]
mov dword [esp + 0x58], eax
mov byte [esp + 0x5c], 1
add esp, 0x40
ret
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 0
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov byte [esp + 0x5c], 0
add esp, 0x40
ret
mov ebx, ecx
mov ecx, eax
mov eax, esi
test ebx, ebx
je 0x58cb1e
mov dword [esp + 0x34], eax
movzx esi, byte [ecx]
lea edi, [ebx - 1]
mov dword [esp + 0x30], edi
xchg edi, ebx
neg ebx
xchg edi, ebx
sar edi, 0x1f
and edi, 1
lea eax, [edi + ecx]
xchg esi, eax
cmp al, 0x22
xchg esi, eax
je 0x58cb0d
mov dword [esp + 0x3c], eax
xchg esi, eax
cmp al, 0x5c
xchg esi, eax
jne 0x58c9e8
cmp ebx, 1
je 0x58cabb
movzx ecx, byte [ecx + edi]
cmp cl, 0xb
je 0x58c978
cmp cl, 0xc
je 0x58c978
lea esi, [ecx - 1]
xchg esi, eax
cmp al, 8
xchg esi, eax
jbe 0x58c978
lea esi, [ecx - 0xe]
xchg esi, eax
cmp al, 0x71
xchg esi, eax
ja 0x58ca92
inc ebp
cmp edx, ebp
jb 0x58c983
mov esi, dword [esp + 0x34]
jmp 0x58c9cc
mov byte [esp + 0x21], cl
mov dword [esp + 0x30], ebx
mov eax, dword [esp + 0x34]
mov dword [esp], eax
mov dword [esp + 4], ebp
mov dword [esp + 8], edx
mov dword [esp + 0xc], 1
lea eax, [0x63efa0]
mov dword [esp + 0x10], eax
call fcn.00447550
mov eax, dword [esp + 0x14]
mov ebp, dword [esp + 0x18]
mov edx, dword [esp + 0x1c]
movzx ecx, byte [esp + 0x21]
mov ebx, dword [esp + 0x30]
mov esi, eax
mov eax, dword [esp + 0x3c]
mov byte [ebp + esi - 1], cl
lea edi, [ebx - 2]
mov ecx, edi
xchg edi, ebx
neg ebx
xchg edi, ebx
sar edi, 0x1f
and edi, 1
add eax, edi
jmp 0x58c904
xchg esi, eax
cmp al, 0xb
xchg esi, eax
je 0x58ca2f
xchg esi, eax
cmp al, 0xc
xchg esi, eax
je 0x58ca2f
xchg esi, eax
cmp al, 0x20
xchg esi, eax
je 0x58ca2f
xchg esi, eax
cmp al, 0x21
xchg esi, eax
je 0x58ca2f
xchg esi, eax
cmp al, 0x7f
xchg esi, eax
je 0x58ca2f
lea ecx, [esi - 1]
cmp cl, 7
jbe 0x58ca2f
lea ecx, [esi - 0xe]
cmp cl, 0x11
jbe 0x58ca2f
lea ecx, [esi - 0x23]
cmp cl, 0x38
jbe 0x58ca2f
lea ecx, [esi - 0x5d]
cmp cl, 0x21
ja 0x58cae4
lea ecx, [ebp + 1]
cmp edx, ecx
jb 0x58ca3c
mov ebx, dword [esp + 0x34]
jmp 0x58ca7f
xchg esi, eax
mov byte [esp + 0x20], al
xchg esi, eax
mov eax, dword [esp + 0x34]
mov dword [esp], eax
mov dword [esp + 4], ecx
mov dword [esp + 8], edx
mov dword [esp + 0xc], 1
lea eax, [0x63efa0]
mov dword [esp + 0x10], eax
call fcn.00447550
mov eax, dword [esp + 0x14]
mov ecx, dword [esp + 0x18]
mov edx, dword [esp + 0x1c]
movzx esi, byte [esp + 0x20]
mov ebx, eax
mov eax, dword [esp + 0x3c]
xchg esi, eax
mov byte [ecx + ebx - 1], al
xchg esi, eax
mov ebp, ecx
mov esi, ebx
mov ecx, dword [esp + 0x30]
jmp 0x58c904
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 0
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov byte [esp + 0x5c], 0
add esp, 0x40
ret
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 0
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov byte [esp + 0x5c], 0
add esp, 0x40
ret
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 0
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov byte [esp + 0x5c], 0
add esp, 0x40
ret
mov ecx, eax
mov edx, ebp
mov ebx, dword [esp + 0x34]
mov eax, dword [esp + 0x30]
jmp 0x58c832
mov dword [esp + 0x4c], 0
mov dword [esp + 0x50], 0
mov dword [esp + 0x54], 0
mov dword [esp + 0x58], 0
mov byte [esp + 0x5c], 0
add esp, 0x40
ret
call fcn.0045dbb0
jmp fcn.0058c530