Function at 0x40ff90
Capabilities:
Parse credit card information

Disassembly:
movzx eax, word [ebx + ebp*2]
cmp ax, 0x20
je 0x402f85
cmp ax, 9
je 0x402f85
movzx eax, word [ebx + ebp*2]
test ax, ax
je 0x40305a
movzx esi, ax
mov dword [esp + 0x10], ebp
mov word [esp + 0x1e], bp
cmp si, 0x30
jae 0x402f8b
cmp si, 0x2e
je 0x402f95
cmp si, 0x41
jae 0x4030f9
cmp si, 0x61
jae 0x403363
cmp si, 0x5f
je 0x403103
movzx eax, si
cmp eax, 0x24
je 0x4030be
cmp eax, 0x3d
je 0x40313a
cmp eax, 0x28
je 0x403177
cmp eax, 0x29
je 0x403159
cmp eax, 0x22
je case.0x402f26.39
sub eax, 0x1a
cmp eax, 0x44
ja case.0x402f26.27
movzx ecx, byte [eax + 0x403428]
jmp dword [ecx*4 + 0x4033ec]
mov edi, 0x40
lea esi, [esp + 0x14]
call fcn.00402b00
mov edi, dword [esp + 0x3c]
push esi
call fcn.00402cc0
inc ebp
jmp 0x40304f
inc ebp
jmp 0x402e80
cmp si, 0x39
ja 0x402ebb
lea eax, [esp + 0x20]
push eax
lea ecx, [esp + 0x18]
push ecx
push ebx
lea eax, [esp + 0x1c]
call fcn.004035d0
cmp al, 1
jne 0x42b421
mov edi, dword [esp + 0x3c]
lea edx, [esp + 0x14]
push edx
call fcn.00402cc0
mov ebp, dword [esp + 0x10]
jmp 0x40304f
cmp ax, 0x30
jae 0x40323a
cmp ax, 0x5f
je 0x4030ec
cmp dword [esp + 0x24], 0
je 0x42b5d0
lea eax, [esp + 0x20]
call fcn.00402ae0
mov esi, dword [esp + 0x24]
mov edi, dword [esp + 0x20]
push esi
push edi
call dword [0x482640]
cmp word [esp + 0x1c], 0x30
jge 0x40328e
mov edx, 0x33
push 0x10
mov word [esp + 0x20], dx
call fcn.0041171a
add esp, 4
test eax, eax
je 0x42b5c3
mov ecx, dword [esp + 0x2c]
mov edx, dword [esp + 0x28]
mov dword [eax], edi
mov dword [eax + 4], esi
mov dword [eax + 8], edx
mov dword [eax + 0xc], ecx
inc dword [ecx]
mov dword [esp + 0x14], eax
lea eax, [esp + 0x14]
push eax
mov edi, dword [esp + 0x40]
call fcn.00402cc0
cmp word [ebx + ebp*2], 0
jne 0x402e80
imul eax, dword [eax], 0xf
test dword [esi], esp
invalid
mov ax, word [esp + 0x1c]
cmp ax, 0x30
cmp eax, 0x30
jl 0x40306f
cmp ax, 0x3f
jle 0x40326d
mov edi, dword [esp + 0x3c]
lea ecx, [esp + 0x14]
mov eax, 0x7f
push ecx
mov word [esp + 0x20], ax
mov dword [esp + 0x18], 0
mov word [esp + 0x22], bp
call fcn.00402cc0
mov esi, dword [esp + 0x2c]
add dword [esi], 0xffffffff
jne 0x4030b3
mov edx, dword [esp + 0x20]
push edx
call fcn.004112ef
add esp, 4
push esi
call fcn.004112ef
add esp, 4
xor eax, eax
pop edi
pop esi
pop ebp
add esp, 0x28
ret 8
lea esi, [esp + 0x20]
inc ebp
call fcn.00403770
add byte [eax], al
movzx eax, word [ebx + ebp*2]
cmp ax, 0x5a
ja 0x4030d8
cmp ax, 0x41
jae 0x4030ec
cmp ax, 0x61
jb 0x402fc8
cmp ax, 0x7a
ja 0x402fc8
push eax
lea eax, [esp + 0x24]
call fcn.00403470
inc ebp
jmp 0x4030c8
cmp si, 0x5a
ja 0x402ecf
lea ecx, [esp + 0x20]
push ecx
lea edx, [esp + 0x18]
push edx
lea eax, [esp + 0x18]
mov ecx, ebx
call fcn.00402b70
cmp dword [esp + 0x14], 0xffffffff
je 0x42b5fe
mov edi, dword [esp + 0x3c]
lea eax, [esp + 0x14]
push eax
call fcn.00402cc0
mov ebp, dword [esp + 0x10]
jmp 0x40304f
inc ebp
cmp word [ebx + ebp*2], 0x3d
lea esi, [esp + 0x14]
je 0x42b599
mov edi, 0x41
call fcn.00402b00
jmp 0x403041
mov edi, 0x48
lea esi, [esp + 0x14]
call fcn.00402b00
mov edi, dword [esp + 0x3c]
push esi
call fcn.00402cc0
inc ebp
jmp 0x40304f
mov edi, 0x47
lea esi, [esp + 0x14]
call fcn.00402b00
mov edi, dword [esp + 0x3c]
push esi
call fcn.00402cc0
inc ebp
jmp 0x40304f
mov edx, dword [esp + 0x38]
push edx
lea eax, [esp + 0x24]
lea edi, [esp + 0x14]
call fcn.00403530
lea esi, [esp + 0x14]
test eax, eax
jne 0x42b68a
lea edi, [eax + 0x36]
call fcn.00402b00
lea esi, [esp + 0x20]
lea edi, [esp + 0x14]
call fcn.00402650
push edi
mov edi, dword [esp + 0x40]
call fcn.00402cc0
mov ebp, dword [esp + 0x10]
jmp 0x40304f
mov edi, 0x4d
lea esi, [esp + 0x14]
call fcn.00402b00
inc ebp
cmp word [ebx + ebp*2], 0x3d
je 0x403372
push esi
jmp 0x403046
mov edi, 0x49
lea esi, [esp + 0x14]
call fcn.00402b00
inc ebp
cmp word [ebx + ebp*2], 0x3d
je 0x403387
push esi
jmp 0x403046
mov edi, 0x4c
lea esi, [esp + 0x14]
call fcn.00402b00
inc ebp
cmp word [ebx + ebp*2], 0x3d
jne 0x403041
jmp 0x42b529
cmp ax, 0x39
jbe 0x4030ec
jmp 0x402fd2
mov edi, 0x4b
lea esi, [esp + 0x14]
call fcn.00402b00
inc ebp
cmp word [ebx + ebp*2], 0x3d
je 0x42b4f7
lea ecx, [esp + 0x14]
push ecx
jmp 0x403046
mov esi, dword [esp + 0x14]
test esi, esi
je 0x40306f
test dh, dh
std
invalid
mov ecx, esi
call fcn.00402620
push esi
call fcn.004112ef
add esp, 4
jmp 0x40306f
cmp word [esp + 0x1c], 0x3f
jg 0x40300c
jmp 0x42b5a9
mov edi, 0x4e
lea esi, [esp + 0x14]
call fcn.00402b00
mov edi, dword [esp + 0x3c]
push esi
call fcn.00402cc0
inc ebp
jmp 0x40304f
mov edi, 0x4f
lea esi, [esp + 0x14]
call fcn.00402b00
mov edi, dword [esp + 0x3c]
push esi
call fcn.00402cc0
inc ebp
jmp 0x40304f
lea esi, [esp + 0x20]
inc ebp
call fcn.00403770
movzx eax, word [ebx + ebp*2]
cmp ax, 0x5a
ja 0x4032f5
cmp ax, 0x41
jae 0x403301
cmp ax, 0x61
jb 0x40330e
cmp ax, 0x7a
ja 0x40330e
push eax
lea eax, [esp + 0x24]
call fcn.00403470
inc ebp
jmp 0x4032e5
cmp ax, 0x30
jae 0x42b4be
cmp ax, 0x5f
je 0x403301
cmp dword [esp + 0x24], 0
je 0x42b62f
lea eax, [esp + 0x20]
call fcn.00402ae0
mov edx, dword [esp + 0x24]
mov eax, dword [esp + 0x20]
push edx
push eax
call dword [0x482640]
mov edi, 0x32
lea esi, [esp + 0x14]
call fcn.00402b00
lea esi, [esp + 0x20]
lea edi, [esp + 0x14]
call fcn.00402650
push edi
jmp 0x403046
cmp si, 0x7a
jbe 0x403103
jmp 0x402ed9
mov edi, 0x56
lea esi, [esp + 0x14]
inc ebp
call fcn.00402b00
push esi
jmp 0x403046
mov edi, 0x52
lea esi, [esp + 0x14]
inc ebp
call fcn.00402b00
push esi
jmp 0x403046
movzx eax, word [ebx + ebp*2 + 2]
inc ebp
sub eax, 0x3d
lea esi, [esp + 0x14]
je 0x42b54d
sub eax, 1
je 0x42b53d
mov edi, 0x43
call fcn.00402b00
lea edx, [esp + 0x14]
push edx
jmp 0x403046
inc ebp
cmp word [ebx + ebp*2], 0x3d
lea esi, [esp + 0x14]
je 0x42b55d
mov edi, 0x42
call fcn.00402b00
jmp 0x403041
sub esp, 0x18
push edi
push eax
lea edi, [esp + 0x14]
call fcn.0040f5e0
test eax, eax
je 0x42b6bf
xor al, al
pop edi
add esp, 0x18
ret
jmp fcn.0042b3ea
call dword [eax - 0x73]
inc esp
and al, 0x24
call fcn.00403481
inc ebp
jmp 0x8b8b44a
jne 0x42b4d7
jne 0x42b4d7
cmp ax, 0x39
jbe 0x403312
std
invalid
jmp 0x403329
invalid
add byte [ebx + 0x1424748d], cl
inc ebp
invalid
cli
invalid