Function at 0x4b74e0
Capabilities:
Parse credit card information

Disassembly:
sub esp, 0x10
mov eax, dword [esp + 0x14]
push ebx
mov ebx, dword [esp + 0x20]
push ebp
mov ebp, dword [esp + 0x34]
push esi
push edi
mov edi, dword [eax]
mov eax, dword [ebp]
mov ecx, eax
mov dword [esp + 0x10], edi
cmp word [edi], 0x28
mov dword [esp + 0x1c], ecx
mov dword [esp + 0x14], ecx
mov dword [esp + 0x18], 0
jne 0x4b7544
movzx ecx, word [edi + 2]
cmp ecx, 0x2a
jne 0x4b7522
add edi, 4
jmp 0x4b7540
cmp ecx, 0x3f
je 0x4b75b5
inc eax
mov dword [ebp], eax
test ebx, ebx
jne 0x4b753d
cmp eax, dword [esp + 0x30]
je 0x4b7969
add edi, 2
mov dword [esp + 0x10], edi
mov ebx, dword [esp + 0x28]
cmp edi, dword [ebx + 0x1c]
jae 0x4b7960
movzx eax, word [edi]
mov edx, dword [esp + 0x14]
mov ecx, dword [esp + 0x34]
cmp eax, 0x5c
jne 0x4b76f8
add edi, 2
mov dword [esp + 0x10], edi
movzx eax, word [edi]
test ax, ax
je 0x4b7960
cmp eax, 0x51
jne 0x4b7938
add edi, 2
mov dword [esp + 0x10], edi
movzx eax, word [edi]
test ax, ax
je 0x4b7960
cmp eax, 0x5c
jne 0x4b7581
cmp word [edi], 0
je 0x4b7960
add edi, 2
mov dword [esp + 0x10], edi
cmp word [edi], 0x45
jne 0x4b7581
jmp 0x4b7938
movzx ecx, word [edi + 4]
cmp ecx, 0x7c
jne 0x4b75ce
add edi, 6
mov dword [esp + 0x18], 1
jmp 0x4b7540
cmp ecx, 0x23
jne 0x4b7610
add edi, 6
mov dword [esp + 0x10], edi
movzx eax, word [edi]
test ax, ax
je 0x4b7960
cmp ax, 0x29
je 0x4b7960
add edi, 2
mov dword [esp + 0x10], edi
movzx eax, word [edi]
test ax, ax
jne 0x4b75e6
mov ecx, dword [esp + 0x24]
mov dword [ecx], edi
pop edi
pop esi
pop ebp
or eax, 0xffffffff
pop ebx
add esp, 0x10
ret
add edi, 4
mov dword [esp + 0x10], edi
cmp ecx, 0x28
jne 0x4b765c
cmp word [edi + 2], 0x3f
je 0x4b7544
movzx eax, word [edi]
test ax, ax
je 0x4b7544
cmp ax, 0x29
je 0x4b764d
add edi, 2
mov dword [esp + 0x10], edi
movzx eax, word [edi]
test ax, ax
jne 0x4b7633
jmp 0x4b7544
cmp word [edi], 0
je 0x4b7544
jmp 0x4b753d
cmp word [edi], 0x50
jne 0x4b7669
add edi, 2
mov dword [esp + 0x10], edi
movzx ecx, word [edi]
cmp ecx, 0x3c
jne 0x4b767f
movzx edx, word [edi + 2]
cmp edx, 0x21
je 0x4b767f
cmp edx, 0x3d
jne 0x4b7688
cmp ecx, 0x27
jne 0x4b7544
lea esi, [eax + 1]
mov dword [ebp], esi
test ebx, ebx
jne 0x4b7698
cmp esi, dword [esp + 0x30]
je 0x4b76ee
movzx ecx, word [edi]
add edi, 2
mov dword [esp + 0x10], edi
cmp ecx, 0x3c
jne 0x4b76ac
mov ecx, 0x3e
movzx edx, word [edi]
mov eax, edi
cmp edx, ecx
je 0x4b76c3
add edi, 2
mov dword [esp + 0x10], edi
movzx edx, word [edi]
cmp edx, ecx
jne 0x4b76b5
test ebx, ebx
je 0x4b7544
mov ecx, edi
sub ecx, eax
sar ecx, 1
cmp dword [esp + 0x30], ecx
jne 0x4b7544
mov ecx, dword [esp + 0x30]
mov edx, ebx
call fcn.004c9310
test eax, eax
jne 0x4b7544
pop edi
mov eax, esi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret
cmp eax, 0x5b
jne 0x4b7813
xor ebp, ebp
movzx eax, word [edi + 2]
cmp eax, 0x5c
jne 0x4b775a
cmp word [edi + 4], 0x45
lea ecx, [edi + 4]
jne 0x4b771e
mov edi, ecx
mov dword [esp + 0x10], edi
jmp 0x4b7703
mov ebx, 3
mov esi, 0x50f6d8
movzx eax, word [ecx]
movzx edx, byte [esi]
dec ebx
add ecx, 2
inc esi
cmp dx, ax
jne 0x4b7745
test ebx, ebx
jne 0x4b7728
add edi, 8
mov dword [esp + 0x10], edi
jmp 0x4b7703
sbb eax, eax
neg eax
lea eax, [eax + eax - 1]
test eax, eax
jne 0x4b776f
add edi, 8
mov dword [esp + 0x10], edi
jmp 0x4b7703
test ebp, ebp
jne 0x4b776f
cmp eax, 0x5e
jne 0x4b776f
add edi, 2
lea ebp, [eax - 0x5d]
mov dword [esp + 0x10], edi
jmp 0x4b7703
cmp word [edi + 2], 0x5d
jne 0x4b7786
mov eax, dword [esp + 0x28]
test dword [eax + 0x4c], 0x2000000
jne 0x4b7786
add edi, 2
add edi, 2
mov dword [esp + 0x10], edi
movzx eax, word [edi]
cmp eax, 0x5d
je 0x4b7938
lea esp, [esp]
test ax, ax
je 0x4b7966
cmp ax, 0x5c
jne 0x4b77ff
add edi, 2
mov dword [esp + 0x10], edi
movzx eax, word [edi]
test ax, ax
je 0x4b7960
cmp eax, 0x51
jne 0x4b77ff
jmp 0x4b77d0
add edi, 2
mov dword [esp + 0x10], edi
movzx eax, word [edi]
test ax, ax
je 0x4b7960
cmp eax, 0x5c
jne 0x4b77d0
cmp word [edi], 0
je 0x4b7960
add edi, 2
mov dword [esp + 0x10], edi
cmp word [edi], 0x45
jne 0x4b77d0
add edi, 2
mov dword [esp + 0x10], edi
movzx eax, word [edi]
cmp eax, 0x5d
jne 0x4b77a0
jmp 0x4b7938
test ecx, ecx
je 0x4b78e1
cmp eax, 0x23
jne 0x4b78e1
add edi, 2
mov dword [esp + 0x10], edi
movzx ecx, word [edi]
test cx, cx
je 0x4b7960
mov eax, dword [ebx + 0x60]
test eax, eax
je 0x4b7876
mov edx, dword [ebx + 0x1c]
cmp edi, edx
jae 0x4b789a
mov ecx, dword [esp + 0x38]
push ecx
lea esi, [ebx + 0x64]
push eax
mov ecx, edi
call fcn.004c9390
add esp, 8
test eax, eax
je 0x4b789a
mov ecx, dword [ebx + 0x64]
lea edi, [edi + ecx*2 - 2]
mov dword [esp + 0x10], edi
cmp word [edi], 0
je 0x4b7960
jmp 0x4b7938
mov eax, dword [ebx + 0x64]
mov esi, dword [ebx + 0x1c]
lea edx, [eax + eax]
sub esi, edx
cmp edi, esi
ja 0x4b789a
cmp cx, word [ebx + 0x68]
jne 0x4b789a
cmp eax, 1
je 0x4b785c
mov ax, word [edi + 2]
cmp ax, word [ebx + 0x6a]
je 0x4b785c
add edi, 2
cmp dword [esp + 0x38], 0
mov dword [esp + 0x10], edi
je 0x4b78c4
mov cx, word [edi]
mov edx, 0xfc00
and cx, dx
mov eax, 0xdc00
cmp cx, ax
jne 0x4b78c4
add edi, 2
mov dword [esp + 0x10], edi
movzx ecx, word [edi]
test cx, cx
jne 0x4b7837
mov ecx, dword [esp + 0x24]
mov dword [ecx], edi
pop edi
pop esi
pop ebp
or eax, 0xffffffff
pop ebx
add esp, 0x10
ret
cmp eax, 0x28
jne 0x4b7915
mov edx, dword [esp + 0x38]
mov eax, dword [esp + 0x30]
push ebp
push edx
push ecx
mov ecx, dword [esp + 0x38]
push eax
push ecx
lea edx, [esp + 0x24]
push ebx
push edx
call fcn.004b74e0
add esp, 0x1c
test eax, eax
jg 0x4b7969
mov edi, dword [esp + 0x10]
cmp word [edi], 0
je 0x4b7960
jmp 0x4b7938
cmp eax, 0x29
je 0x4b7951
cmp eax, 0x7c
jne 0x4b7938
cmp dword [esp + 0x18], 0
je 0x4b7938
mov eax, dword [ebp]
cmp eax, edx
jle 0x4b7931
mov dword [esp + 0x14], eax
mov eax, dword [esp + 0x1c]
mov dword [ebp], eax
mov ebx, dword [esp + 0x28]
add edi, 2
mov dword [esp + 0x10], edi
cmp edi, dword [ebx + 0x1c]
jae 0x4b7960
mov ebp, dword [esp + 0x3c]
jmp 0x4b7551
cmp dword [esp + 0x18], 0
je 0x4b7960
cmp dword [ebp], edx
jge 0x4b7960
mov dword [ebp], edx
mov ecx, dword [esp + 0x24]
mov dword [ecx], edi
or eax, 0xffffffff
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret