Function at 0x4891e0
Capabilities:
Parse credit card information

Disassembly:
sub esp, 0x18
push ebx
mov eax, ecx
mov dword [esp + 0x14], 0
push ebp
mov ebp, edx
mov dword [esp + 0x1c], eax
mov edx, dword [esp + 0x34]
push esi
mov esi, dword [eax]
mov dword [esp + 0xc], esi
mov eax, dword [edx]
mov ebx, eax
push edi
cmp word [esi], 0x28
mov edi, dword [esp + 0x30]
mov dword [esp + 0x14], ebp
mov dword [esp + 0x18], eax
mov dword [esp + 0x1c], ebx
jne 0x4893d3
movzx eax, word [esi + 2]
cmp eax, 0x2a
jne 0x489234
add esi, 4
mov dword [esp + 0x10], esi
jmp 0x4893d3
cmp eax, 0x3f
je 0x489259
mov eax, ebx
inc eax
cmp dword [esp + 0x2c], 0
mov dword [edx], eax
jne 0x48924d
cmp eax, edi
je 0x4896af
add esi, 2
mov dword [esp + 0x10], esi
jmp 0x4893d3
movzx eax, word [esi + 4]
lea ecx, [esi + 4]
cmp eax, 0x7c
jne 0x489279
add esi, 6
mov dword [esp + 0x20], 1
mov dword [esp + 0x10], esi
jmp 0x4893d3
cmp eax, 0x23
jne 0x4892c3
lea ecx, [esi + 6]
mov esi, ecx
mov dword [esp + 0x10], esi
movzx eax, word [esi]
test ax, ax
je 0x4896a6
mov edx, eax
cmp dx, 0x29
je 0x4896a6
lea esi, [ecx + 2]
mov dword [esp + 0x10], esi
mov ecx, esi
movzx eax, word [esi]
mov edx, eax
test ax, ax
jne 0x489295
mov eax, dword [esp + 0x24]
pop edi
mov dword [eax], esi
or eax, 0xffffffff
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
mov esi, ecx
mov dword [esp + 0x10], esi
cmp eax, 0x28
jne 0x489311
cmp word [esi + 2], 0x3f
je 0x4893d3
movzx eax, word [esi]
mov edx, eax
test ax, ax
je 0x4893cf
cmp dx, 0x29
je 0x489305
lea esi, [ecx + 2]
mov dword [esp + 0x10], esi
mov ecx, esi
movzx eax, word [esi]
mov edx, eax
test ax, ax
jne 0x4892e7
jmp 0x4893cf
add esi, 2
mov dword [esp + 0x10], esi
jmp 0x4893cf
cmp word [esi], 0x50
jne 0x48931e
lea esi, [ecx + 2]
mov dword [esp + 0x10], esi
movzx eax, word [esi]
mov ecx, eax
cmp eax, 0x3c
jne 0x48933a
movzx eax, word [esi + 2]
cmp eax, 0x21
je 0x4893d3
cmp eax, 0x3d
jne 0x489343
cmp ecx, 0x27
jne 0x4893d3
mov ebp, ebx
inc ebp
cmp dword [esp + 0x2c], 0
mov dword [edx], ebp
jne 0x489353
cmp ebp, edi
je 0x4893b9
add esi, 2
mov edx, ecx
cmp edx, 0x3c
mov dword [esp + 0x10], esi
mov eax, 0x3e
mov edi, esi
cmove edx, eax
mov ecx, edi
movzx eax, word [esi]
cmp eax, edx
je 0x489382
add esi, 2
mov dword [esp + 0x10], esi
mov ecx, esi
movzx eax, word [esi]
cmp eax, edx
jne 0x489372
cmp dword [esp + 0x2c], 0
je 0x4893c7
mov eax, dword [esp + 0x30]
sub ecx, edi
sar ecx, 1
cmp eax, ecx
jne 0x489430
mov ebx, dword [esp + 0x2c]
mov edx, eax
test eax, eax
je 0x4893b9
movzx ecx, word [ebx]
lea ebx, [ebx + 2]
movzx eax, word [edi]
lea edi, [edi + 2]
dec edx
cmp cx, ax
jne 0x4893c3
test edx, edx
jne 0x4893a3
pop edi
pop esi
mov eax, ebp
pop ebp
pop ebx
add esp, 0x18
ret
mov ebx, dword [esp + 0x1c]
mov edi, dword [esp + 0x30]
mov ebp, dword [esp + 0x14]
mov edx, dword [esp + 0x3c]
cmp esi, dword [ebp + 0x1c]
jae 0x4896a6
movzx eax, word [esi]
mov ecx, dword [esp + 0x34]
cmp eax, 0x5c
jne 0x489434
add esi, 2
mov dword [esp + 0x10], esi
movzx eax, word [esi]
test ax, ax
je 0x4896a6
cmp eax, 0x51
jne 0x48952e
add esi, 2
mov dword [esp + 0x10], esi
mov ecx, esi
movzx eax, word [esi]
test ax, ax
je 0x4896a6
cmp eax, 0x5c
jne 0x489404
lea esi, [ecx + 2]
mov dword [esp + 0x10], esi
cmp word [esi], 0x45
jne 0x489404
jmp 0x48952e
mov edi, eax
jmp 0x4893cb
cmp eax, 0x5b
jne 0x48954f
xor ebp, ebp
nop
movzx eax, word [esi + 2]
cmp eax, 0x5c
jne 0x489484
cmp word [esi + 4], 0x45
lea edi, [esi + 4]
jne 0x48945b
mov esi, edi
mov dword [esp + 0x10], esi
jmp 0x489440
mov edx, 3
mov ebx, 0x4dc8a4
movzx ecx, word [edi]
lea edi, [edi + 2]
movzx eax, byte [ebx]
lea ebx, [ebx + 1]
dec edx
cmp cx, ax
jne 0x4894ae
test edx, edx
jne 0x489465
add esi, 8
mov dword [esp + 0x10], esi
jmp 0x489440
test ebp, ebp
jne 0x489499
cmp eax, 0x5e
jne 0x489499
add esi, 2
lea ebp, [eax - 0x5d]
mov dword [esp + 0x10], esi
jmp 0x489440
cmp eax, 0x5d
jne 0x4894ae
mov eax, dword [esp + 0x14]
test dword [eax + 0x4c], 0x2000000
jne 0x4894ae
add esi, 2
add esi, 2
mov dword [esp + 0x10], esi
movzx eax, word [esi]
cmp eax, 0x5d
je 0x48952a
mov ecx, eax
mov edx, esi
test cx, cx
je 0x4896ac
cmp cx, 0x5c
jne 0x489517
lea esi, [edx + 2]
mov dword [esp + 0x10], esi
movzx eax, word [esi]
test ax, ax
je 0x4896a6
cmp eax, 0x51
jne 0x489517
nop dword [eax + eax]
add esi, 2
mov dword [esp + 0x10], esi
mov ecx, esi
movzx eax, word [esi]
test ax, ax
je 0x4896a6
cmp eax, 0x5c
jne 0x4894f0
lea esi, [ecx + 2]
mov dword [esp + 0x10], esi
cmp word [esi], 0x45
jne 0x4894f0
add esi, 2
mov dword [esp + 0x10], esi
mov edx, esi
movzx eax, word [esi]
mov ecx, eax
cmp eax, 0x5d
jne 0x4894c1
mov ebp, dword [esp + 0x14]
add esi, 2
mov dword [esp + 0x10], esi
cmp esi, dword [ebp + 0x1c]
jae 0x4896a6
mov edx, dword [esp + 0x3c]
mov ebx, dword [esp + 0x1c]
mov edi, dword [esp + 0x30]
jmp 0x4893dc
test ecx, ecx
je 0x48963b
cmp eax, 0x23
jne 0x48963b
add esi, 2
mov dword [esp + 0x10], esi
movzx eax, word [esi]
test ax, ax
je 0x489630
mov ecx, esi
mov ebx, esi
mov edi, eax
nop dword [eax]
mov edx, dword [ebp + 0x60]
test edx, edx
je 0x4895b2
mov eax, dword [ebp + 0x1c]
lea edi, [ebp + 0x64]
cmp ecx, eax
jae 0x4895aa
push 1
push edi
push eax
mov ecx, esi
call fcn.0049b4f0
add esp, 0xc
test eax, eax
je 0x4895aa
mov eax, 1
jmp 0x4895ac
xor eax, eax
test eax, eax
jne 0x489624
jmp 0x4895e0
mov edx, dword [ebp + 0x64]
mov ecx, dword [esp + 0x14]
lea eax, [edx + edx]
mov ecx, dword [ecx + 0x1c]
sub ecx, eax
cmp ebx, ecx
ja 0x489619
mov ecx, dword [esp + 0x14]
cmp di, word [ecx + 0x68]
jne 0x4895de
cmp edx, 1
je 0x48961f
mov ax, word [esi + 2]
cmp ax, word [ecx + 0x6a]
je 0x48961f
mov ebp, ecx
add esi, 2
mov edx, 0xfc00
mov dword [esp + 0x10], esi
mov ecx, esi
mov ax, word [esi]
and ax, dx
mov edx, 0xdc00
cmp ax, dx
jne 0x489607
lea esi, [ecx + 2]
mov dword [esp + 0x10], esi
mov ecx, esi
movzx eax, word [esi]
mov ebx, ecx
mov edi, eax
test ax, ax
jne 0x489580
jmp 0x489630
mov ebp, dword [esp + 0x14]
jmp 0x4895e0
lea edi, [ebp + 0x64]
mov ebp, ecx
mov eax, dword [edi]
lea esi, [esi + eax*2]
add esi, 0xfffffffe
mov dword [esp + 0x10], esi
cmp word [esi], 0
je 0x4896a6
jmp 0x48952e
cmp eax, 0x28
jne 0x48966a
push edx
push 1
push ecx
push edi
push dword [esp + 0x3c]
mov edx, ebp
lea ecx, [esp + 0x24]
call fcn.004891e0
add esp, 0x14
test eax, eax
jg 0x4896af
mov esi, dword [esp + 0x10]
cmp word [esi], 0
je 0x4896a6
jmp 0x48952e
cmp eax, 0x29
je 0x489699
cmp eax, 0x7c
jne 0x48952e
cmp dword [esp + 0x20], 0
je 0x48952e
mov eax, dword [edx]
cmp eax, ebx
mov ecx, dword [esp + 0x18]
cmovle eax, ebx
mov dword [edx], ecx
mov dword [esp + 0x1c], eax
jmp 0x48952e
cmp dword [esp + 0x20], 0
je 0x4896a6
cmp dword [edx], ebx
jge 0x4896a6
mov dword [edx], ebx
mov eax, dword [esp + 0x24]
mov dword [eax], esi
or eax, 0xffffffff
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret