Function at 0x4257d0
Capabilities:
Parse credit card information

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x20
push ebx
push esi
mov esi, dword [ebp + 0xc]
push edi
mov edi, dword [ebp + 8]
test edi, edi
jne 0x4257ed
push 0x80004005
call fcn.004016fb
test esi, esi
je 0x4257e3
cmp edi, esi
je 0x4257e3
mov bl, byte [edi]
xor edx, edx
and dword [ebp - 0x1c], edx
and dword [ebp - 0x14], edx
test bl, bl
lea eax, [esi + 0x823]
mov dword [ebp - 8], edx
mov dword [ebp - 0xc], 1
mov dword [ebp - 0x10], 0x20
mov dword [ebp - 0x20], esi
mov dword [ebp - 0x18], eax
je 0x425a45
inc edi
cmp edx, 0x823
mov dword [ebp + 8], edi
jne 0x425834
and dword [ebp - 0xc], 0
cmp bl, 0x3a
jne 0x4258ad
test byte [ebp - 0x10], 0x80
je 0x4258ff
cmp dword [ebp - 0x14], 0
jne 0x4258ff
cmp dword [ebp - 0xc], 0
je 0x4258a4
mov eax, esi
sub eax, edx
cmp eax, dword [ebp - 0x20]
mov byte [esi], 0
jb 0x4257e3
cmp eax, dword [ebp - 0x18]
ja 0x4257e3
mov ecx, dword [ebp - 0x18]
sub ecx, eax
inc ecx
push ecx
push eax
call dword [sym.imp.MSVCR80.dll__strlwr_s]
push eax
call fcn.004014b7
add esp, 0xc
cmp dword [ebp - 8], 4
jne 0x4258a4
push 4
lea eax, [esi - 4]
push eax
push str.file
call dword [sym.imp.MSVCR80.dll_strncmp]
add esp, 0xc
test eax, eax
jne 0x4258a4
mov dword [ebp - 0x1c], 1
mov eax, dword [ebp - 8]
inc eax
mov dword [ebp - 0x14], eax
jmp 0x4258ff
cmp bl, 0x25
jne 0x4258eb
test byte [ebp - 0x10], 4
je 0x4258ff
mov al, byte [edi]
test al, al
je 0x425a37
inc edi
mov cl, byte [edi]
test cl, cl
mov byte [ebp - 1], cl
je 0x425a37
inc edi
mov dword [ebp + 8], edi
call fcn.004256a4
mov bx, ax
mov al, byte [ebp - 1]
shl bl, 4
call fcn.004256a4
add bl, al
jmp 0x4258ff
cmp bl, 0x3f
je 0x4258f5
cmp bl, 0x23
jne 0x4258ff
test byte [ebp - 0x10], 0x20
je 0x4258ff
or dword [ebp - 0x10], 2
mov eax, dword [ebp - 0x10]
test al, al
jns 0x425969
test al, 2
jne 0x425969
cmp bl, 0x5c
jne 0x425930
xor ecx, ecx
cmp dword [ebp - 0x14], ecx
jne 0x42591c
test ax, 0x100
je 0x425969
cmp dword [ebp - 0xc], ecx
je 0x425969
cmp dword [ebp - 0x1c], ecx
je 0x42592c
cmp dword [ebp - 8], 7
jae 0x425969
mov bl, 0x2f
jmp 0x425969
cmp bl, 0x2e
jne 0x425969
mov ecx, dword [ebp - 8]
test ecx, ecx
jbe 0x425969
test al, 8
jne 0x425969
push dword [ebp - 0x14]
lea edx, [ebp + 0xc]
push eax
lea eax, [ebp - 8]
push eax
lea eax, [ebp + 8]
push eax
lea eax, [esi - 1]
push edx
call fcn.00425706
mov esi, dword [ebp + 0xc]
mov edi, dword [ebp + 8]
add esp, 0x14
test eax, eax
jne 0x425a2a
movzx ecx, bl
cmp ecx, 0x40
jg 0x425991
cmp ecx, 0x3b
jge 0x4259b2
cmp ecx, 0x20
je 0x4259b2
cmp ecx, 0x21
jle 0x4259a8
cmp ecx, 0x26
jle 0x4259b2
cmp ecx, 0x2a
jle 0x4259a8
cmp ecx, 0x2c
jle 0x4259b2
jmp 0x4259a8
cmp ecx, 0x5b
jl 0x4259a8
cmp ecx, 0x5e
jle 0x4259b2
cmp ecx, 0x60
je 0x4259b2
lea eax, [ecx - 0x7b]
cmp eax, 2
jbe 0x4259b2
cmp bl, 0x20
jb 0x4259b2
cmp bl, 0x7e
jbe 0x425a1b
mov al, byte [ebp - 0x10]
test al, 2
jne 0x425a1b
test al, 0x10
je 0x4259c2
cmp bl, 0x20
jne 0x425a1b
test al, 8
je 0x4259cb
cmp bl, 0x2e
je 0x425a1b
test al, 0x40
jne 0x4259d4
cmp bl, 0x25
je 0x425a1b
cmp dword [ebp - 8], 0x820
jb 0x4259e1
and dword [ebp - 0xc], 0
cmp dword [ebp - 0xc], 0
je 0x425a15
cmp bl, 0x10
mov byte [esi], 0x25
lea eax, [esi + 1]
jae 0x4259f6
mov byte [eax], 0x30
inc eax
mov edx, dword [ebp - 0x18]
push 0x10
sub edx, eax
push edx
push eax
push ecx
call dword [sym.imp.MSVCR80.dll__ultoa_s]
push eax
call fcn.004014b7
add esp, 0x14
add esi, 3
mov dword [ebp + 0xc], esi
add dword [ebp - 8], 2
jmp 0x425a27
cmp dword [ebp - 0xc], 0
je 0x425a27
mov byte [esi], bl
inc esi
mov dword [ebp + 0xc], esi
inc dword [ebp - 8]
mov bl, byte [edi]
test bl, bl
mov edx, dword [ebp - 8]
jne 0x425824
cmp dword [ebp - 0xc], 0
je 0x425a48
cmp edx, 0x823
jae 0x425a48
mov byte [esi], 0
mov eax, dword [ebp + 0x10]
test eax, eax
pop edi
pop esi
pop ebx
je 0x425a57
lea ecx, [edx + 1]
mov dword [eax], ecx
inc edx
cmp edx, 0x823
jbe 0x425a64
and dword [ebp - 0xc], 0
mov eax, dword [ebp - 0xc]
leave
ret