Function at 0x403b10
Capabilities:
Parse credit card information

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x667c38
mov eax, dword fs:[0]
push eax
sub esp, 0x40
mov eax, dword [0x6fe3a4]
xor eax, ebp
mov dword [ebp - 0x10], eax
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov dword [ebp - 0x4c], ecx
mov dword [ebp - 0x44], 0
mov dword [ebp - 4], 0
mov eax, dword [0x679ea4]
mov dword [ebp - 0x24], eax
mov ecx, dword [0x679ea8]
mov dword [ebp - 0x20], ecx
mov edx, dword [0x679eac]
mov dword [ebp - 0x1c], edx
mov eax, dword [0x679eb0]
mov dword [ebp - 0x18], eax
mov cl, byte [0x679eb4]
mov byte [ebp - 0x14], cl
push 0x679ea1
lea ecx, [ebp - 0x3c]
call fcn.004040b0
mov byte [ebp - 4], 1
lea ecx, [ebp + 0xc]
call fcn.004c7660
mov dword [ebp - 0x48], eax
mov dword [ebp - 0x40], 0
jmp 0x403ba2
mov edx, dword [ebp - 0x40]
add edx, 1
mov dword [ebp - 0x40], edx
mov eax, dword [ebp - 0x40]
cmp eax, dword [ebp - 0x48]
jge 0x403da0
mov ecx, dword [ebp - 0x40]
push ecx
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx edx, byte [eax]
cmp edx, 0x24
je 0x403d12
mov eax, dword [ebp - 0x40]
push eax
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx ecx, byte [eax]
cmp ecx, 0x26
je 0x403d12
mov edx, dword [ebp - 0x40]
push edx
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx eax, byte [eax]
cmp eax, 0x2b
je 0x403d12
mov ecx, dword [ebp - 0x40]
push ecx
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx edx, byte [eax]
cmp edx, 0x2c
je 0x403d12
mov eax, dword [ebp - 0x40]
push eax
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx ecx, byte [eax]
cmp ecx, 0x2f
je 0x403d12
mov edx, dword [ebp - 0x40]
push edx
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx eax, byte [eax]
cmp eax, 0x3a
je 0x403d12
mov ecx, dword [ebp - 0x40]
push ecx
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx edx, byte [eax]
cmp edx, 0x5b
je 0x403d12
mov eax, dword [ebp - 0x40]
push eax
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx ecx, byte [eax]
cmp ecx, 0x5d
je 0x403d12
mov edx, dword [ebp - 0x40]
push edx
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx eax, byte [eax]
cmp eax, 0x5c
je 0x403d12
mov ecx, dword [ebp - 0x40]
push ecx
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx edx, byte [eax]
cmp edx, 0x3b
je 0x403d12
mov eax, dword [ebp - 0x40]
push eax
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx ecx, byte [eax]
cmp ecx, 0x3d
je 0x403d12
mov edx, dword [ebp - 0x40]
push edx
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx eax, byte [eax]
cmp eax, 0x3f
je 0x403d12
mov ecx, dword [ebp - 0x40]
push ecx
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx edx, byte [eax]
cmp edx, 0x40
je 0x403d12
mov eax, dword [ebp - 0x40]
push eax
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx ecx, byte [eax]
cmp ecx, 0x23
je 0x403d12
mov edx, dword [ebp - 0x40]
push edx
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx eax, byte [eax]
cmp eax, 0x20
jl 0x403d12
mov ecx, dword [ebp - 0x40]
push ecx
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx edx, byte [eax]
cmp edx, 0x7e
jle 0x403d61
push 0x25
lea ecx, [ebp - 0x3c]
call fcn.004043d0
mov eax, dword [ebp - 0x40]
push eax
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx ecx, byte [eax]
sar ecx, 4
and ecx, 0xf
movzx edx, byte [ebp + ecx - 0x24]
push edx
lea ecx, [ebp - 0x3c]
call fcn.004043d0
mov eax, dword [ebp - 0x40]
push eax
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx ecx, byte [eax]
and ecx, 0xf
movzx edx, byte [ebp + ecx - 0x24]
push edx
lea ecx, [ebp - 0x3c]
call fcn.004043d0
jmp 0x403d9b
mov eax, dword [ebp - 0x40]
push eax
lea ecx, [ebp + 0xc]
call fcn.00404340
movsx ecx, byte [eax]
cmp ecx, 0x20
jne 0x403d81
push 0x2b
lea ecx, [ebp - 0x3c]
call fcn.004043d0
jmp 0x403d9b
mov edx, dword [ebp - 0x40]
push edx
lea ecx, [ebp + 0xc]
call fcn.00404340
mov al, byte [eax]
movzx ecx, al
push ecx
lea ecx, [ebp - 0x3c]
call fcn.004043d0
jmp 0x403b99
lea edx, [ebp - 0x3c]
push edx
mov ecx, dword [ebp + 8]
call fcn.00403fa0
mov eax, dword [ebp - 0x44]
or eax, 1
mov dword [ebp - 0x44], eax
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x3c]
call fcn.004041d0
mov dword [ebp - 4], 0xffffffff
lea ecx, [ebp + 0xc]
call fcn.004041d0
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.00641b27
mov esp, ebp
pop ebp
ret 0x1c