Function at 0x4537c3
Capabilities:
Parse credit card information
Query environment variable

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x1b8
push esi
push edi
mov eax, 0x4d8d24
mov edi, ecx
push eax
mov dword [ebp - 0x18], edi
call dword [sym.imp.KERNEL32.DLL_EnterCriticalSection]
mov al, byte [edi + 9]
xor esi, esi
cmp dword [ebp + 0x10], esi
setl byte [ebp - 0xd]
and al, 0x11
cmp byte [ebp - 0xd], 0
mov byte [ebp - 0xe], al
jne 0x4537fc
test byte [ebp + 0x14], 0x40
je 0x453800
mov byte [ebp - 0xe], 0
and byte [ebp + 0x14], 1
push ebx
push 0x50
pop eax
push eax
lea ecx, [ebp - 0x24]
mov dword [ebp - 0x48], eax
call fcn.00443f79
or dword [ebp - 0x28], 0xffffffff
lea eax, [ebp - 0x40]
push eax
lea eax, [ebp - 0x38]
push eax
lea eax, [ebp - 0x44]
push eax
lea eax, [ebp - 4]
push eax
lea eax, [ebp + 0x10]
push eax
push dword [ebp + 0xc]
lea ecx, [ebp - 0x60]
mov dword [ebp - 4], esi
mov dword [ebp - 0x44], esi
mov dword [ebp - 0x38], esi
mov dword [ebp - 0x40], esi
call fcn.0044b760
mov ebx, dword [ebp + 8]
mov eax, dword [ebp - 4]
cmp eax, dword [ebp - 0x44]
jae 0x453f9b
cmp word [ebx], 0
je 0x453f9b
lea ecx, [ebp - 0x60]
call fcn.0044b852
push 0x25
pop esi
cmp word [ebx], si
je 0x453894
mov ecx, dword [ebp - 0x40]
sub ecx, dword [ebp - 4]
sar ecx, 1
jmp 0x45388f
mov ax, word [ebx]
test ax, ax
je 0x453846
cmp ax, si
je 0x453846
mov edx, dword [ebp - 4]
mov word [edx], ax
add dword [ebp - 4], 2
inc ebx
inc ebx
dec ecx
jns 0x453876
jmp 0x453846
cmp byte [ebp + 0x14], 0
mov dword [ebp - 0x1c], ebx
je 0x453a38
lea edx, [ebx + 2]
mov cx, word [edx]
cmp cx, si
jne 0x4538bb
mov eax, dword [ebp - 4]
mov word [eax], si
add dword [ebp - 4], 2
add ebx, 4
jmp 0x453846
cmp cx, 0x23
jne 0x453903
mov ecx, dword [ebp - 0x18]
mov eax, dword [ecx + 0x3c]
add ebx, 4
test eax, eax
mov dword [ebp + 8], ebx
je 0x453843
mov ecx, dword [ecx + 0x38]
mov eax, dword [eax + ecx*4 + 8]
mov cx, word [eax]
test cx, cx
je 0x453843
mov edx, dword [ebp - 4]
mov word [edx], cx
add dword [ebp - 4], 2
inc eax
inc eax
xor ecx, ecx
mov cx, word [eax]
test cx, cx
jne 0x4538e8
jmp 0x453846
cmp cx, 0x2a
jne 0x453922
mov ecx, dword [ebp - 0x18]
mov eax, dword [ecx + 0x3c]
add ebx, 4
test eax, eax
mov dword [ebp + 8], ebx
je 0x453843
mov ecx, dword [ecx + 0x38]
jmp 0x453940
cmp cx, 0x40
jne 0x453954
mov ecx, dword [ebp - 0x18]
mov eax, dword [ecx + 0x3c]
add ebx, 4
test eax, eax
mov dword [ebp + 8], ebx
je 0x453843
mov ecx, dword [ecx + 0x38]
inc ecx
mov esi, dword [eax + ecx*4]
push esi
mov dword [ebp - 0x28], ecx
call dword [sym.imp.KERNEL32.DLL_lstrlenW]
mov edi, eax
jmp 0x453ac4
push ecx
call fcn.004439f7
add esp, 4
test al, al
jne 0x453982
cmp cx, 0x7e
jb 0x453a38
xor eax, eax
mov ax, word [ebx + 4]
push eax
call fcn.004439f7
add esp, 4
test al, al
je 0x453a38
and dword [ebp - 0x20], 0
cmp cx, 0x7e
jb 0x453991
mov dword [ebp - 0x20], esi
mov ebx, edx
inc ebx
inc ebx
xor esi, esi
mov si, word [ebx]
mov dword [ebp + 8], ebx
xor ecx, ecx
xor edi, edi
push esi
call fcn.004439f7
add esp, 4
test al, al
je 0x4539e0
push 0
push 0xa
push edi
push ecx
call fcn.004aa130
mov ecx, eax
movzx eax, si
mov edi, edx
cdq
add ecx, eax
adc edi, edx
add ecx, 0xffffffd0
adc edi, 0xffffffff
inc ebx
inc ebx
xor esi, esi
mov si, word [ebx]
push esi
call fcn.004439f7
add esp, 4
test al, al
jne 0x4539ac
mov dword [ebp + 8], ebx
mov eax, dword [ebp - 0x18]
mov eax, dword [eax + 0x38]
cdq
cmp edi, edx
ja 0x453843
jb 0x4539f9
cmp ecx, eax
jae 0x453843
mov eax, dword [ebp - 0x18]
mov eax, dword [eax + 0x3c]
test eax, eax
je 0x453843
mov esi, dword [eax + ecx*4]
push esi
call dword [sym.imp.KERNEL32.DLL_lstrlenW]
cmp dword [ebp - 0x20], 0
mov edi, eax
je 0x453ac4
cmp word [esi], 0x22
jne 0x453ac4
cmp word [esi + edi*2 - 2], 0x22
jne 0x453a30
dec edi
dec edi
inc esi
inc esi
jmp 0x453ac4
lea edi, [ebx + 2]
mov esi, edi
jmp 0x453a41
inc esi
inc esi
cmp word [esi], 0x26
je 0x453a3f
mov ebx, dword [sym.imp.SHLWAPI.DLL_StrCmpNIW]
push 7
push 0x4c5928
push esi
call ebx
test eax, eax
jne 0x453a68
call fcn.00440118
and edx, 0x7fffffff
jmp 0x453a84
push 7
push 0x4c5918
push esi
call ebx
test eax, eax
jne 0x453b07
mov eax, dword [ebp - 0x18]
add eax, 0x75bd036
xor edx, edx
and word [ebp - 0x104], 0
push edx
push eax
lea eax, [ebp - 0x104]
lea ebx, [esi + 0xe]
push eax
mov dword [ebp + 8], ebx
call fcn.00497ed3
and word [ebp - 0x62], 0
add esp, 0xc
lea eax, [ebp - 0x104]
push eax
call dword [sym.imp.KERNEL32.DLL_lstrlenW]
mov edi, eax
cmp edi, 1
jge 0x453abe
xor edi, edi
lea esi, [ebp - 0x104]
lea eax, [edi + 2]
push eax
lea ecx, [ebp - 0x60]
call fcn.0044b7d7
cmp dword [ebp - 0x28], 0
jl 0x453ae6
mov eax, dword [ebp - 0x18]
mov ecx, dword [ebp - 0x28]
mov eax, dword [eax + 0x3c]
mov esi, dword [eax + ecx*4]
or dword [ebp - 0x28], 0xffffffff
dec edi
js 0x453843
lea eax, [edi + 1]
mov cx, word [esi]
mov edx, dword [ebp - 4]
mov word [edx], cx
add dword [ebp - 4], 2
inc esi
inc esi
dec eax
jne 0x453af0
jmp 0x453846
mov ecx, edi
xor eax, eax
jmp 0x453b24
cmp ax, 0x25
je 0x453b2f
cmp ax, 0x3d
je 0x453b2f
call fcn.0043daaf
test al, al
jne 0x453b2f
inc ecx
inc ecx
mov ax, word [ecx]
test ax, ax
mov dword [ebp + 8], ecx
jne 0x453b0d
mov ebx, dword [ebp + 8]
movsx eax, byte [ebp - 0xe]
mov esi, ebx
sub esi, dword [ebp - 0x1c]
mov byte [ebp - 5], 0
sar esi, 1
cmp word [ebx], 0x25
mov dword [ebp - 0x34], esi
mov dword [ebp - 0x3c], eax
je 0x453b7d
lea eax, [esi + 2]
push eax
lea ecx, [ebp - 0x60]
call fcn.0044b7d7
dec esi
js 0x453843
mov ecx, dword [ebp - 0x1c]
lea eax, [esi + 1]
mov dx, word [ecx]
mov esi, dword [ebp - 4]
mov word [esi], dx
add dword [ebp - 4], 2
inc ecx
inc ecx
dec eax
jne 0x453b66
jmp 0x453843
cmp byte [ebp - 0xd], 0
jne 0x453bbd
mov ax, word [edi]
cmp ax, 0x26
je 0x453b98
cmp byte [ebp - 0xe], 0
je 0x453bbd
cmp ax, 0x5e
je 0x453bbd
add dword [ebp + 8], 2
cmp word [edi], 0x26
mov dword [ebp - 0x1c], edi
mov dword [ebp - 0x30], edi
jne 0x453cbe
inc edi
inc edi
mov dword [ebp - 0x1c], edi
mov dword [ebp - 0x3c], 1
jmp 0x453cbe
add dword [ebp + 8], 2
mov eax, edi
cmp word [eax], 0x5e
mov dword [ebp - 0x1c], eax
jne 0x453bd5
inc eax
inc eax
mov dword [ebp - 0x1c], eax
mov byte [ebp - 5], 8
mov dword [ebp - 0x30], eax
mov ecx, dword [ebp - 0x24]
xor edi, edi
mov word [ecx], di
mov dword [ebp - 0x20], edi
mov dword [ebp - 0x2c], 0x7fffffff
jmp 0x453c03
mov cx, word [eax]
cmp cx, di
je 0x453c47
cmp cx, 0x3a
jne 0x453c01
cmp word [eax + 2], 0x7e
je 0x453c0c
inc eax
inc eax
cmp eax, ebx
mov dword [ebp - 0x14], eax
jb 0x453bec
jmp 0x453c47
and word [eax], 0
add dword [ebp - 0x14], 4
mov edi, eax
lea eax, [ebp - 0x20]
push eax
lea eax, [ebp - 0x14]
push eax
call fcn.004404ef
mov eax, dword [ebp - 0x14]
mov ax, word [eax]
pop ecx
pop ecx
call fcn.0044252e
test al, al
je 0x453c47
add dword [ebp - 0x14], 2
lea eax, [ebp - 0x2c]
push eax
lea eax, [ebp - 0x14]
push eax
call fcn.004404ef
pop ecx
pop ecx
push dword [ebp - 0x48]
and word [ebx], 0
push dword [ebp - 0x24]
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_GetEnvironmentVariableW]
mov edx, dword [ebp - 0x24]
mov esi, eax
test esi, esi
mov dword [ebp - 0x34], esi
jle 0x453c90
cmp word [edx], 0
jne 0x453c90
add esi, 0x64
push esi
lea ecx, [ebp - 0x24]
mov dword [ebp - 0x48], esi
call fcn.00443fa0
push esi
push dword [ebp - 0x24]
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_GetEnvironmentVariableW]
mov edx, dword [ebp - 0x24]
mov esi, eax
mov dword [ebp - 0x34], esi
test edi, edi
mov word [ebx], 0x25
jne 0x453e7f
cmp word [edx], di
jne 0x453f6c
cmp byte [ebp - 5], 0
jne 0x453843
cmp byte [ebp - 0xd], 0
mov byte [ebp - 5], 1
jne 0x453843
mov eax, dword [ebp - 0x30]
xor edx, edx
mov dword [ebp - 0xc], eax
xor esi, esi
mov dword [ebp - 0x20], edx
mov dword [ebp - 0x2c], edx
mov dword [ebp - 0x14], 0x7fffffff
jmp 0x453cff
mov cx, word [eax]
cmp cx, dx
je 0x453e33
cmp cx, 0x3a
jne 0x453cf0
cmp word [eax + 2], 0x7e
je 0x453d08
inc eax
inc eax
cmp cx, 0x3f
mov dword [ebp - 0xc], eax
je 0x453dd9
cmp eax, ebx
jb 0x453cd7
jmp 0x453e33
mov ecx, dword [ebp - 0x18]
xor esi, esi
push esi
push 0xffffffffffffffff
push esi
push dword [ebp - 0x30]
mov word [eax], si
call fcn.00410728
mov edi, eax
mov eax, dword [ebp - 0xc]
mov word [eax], 0x3a
add dword [ebp - 0xc], 4
lea eax, [ebp - 0x2c]
push eax
lea eax, [ebp - 0xc]
push eax
call fcn.004404ef
pop ecx
pop ecx
mov ecx, dword [ebp - 0xc]
mov ax, word [ecx]
call fcn.0044252e
test al, al
je 0x453d6c
lea eax, [ebp - 0x14]
push eax
inc ecx
lea eax, [ebp - 0xc]
inc ecx
push eax
mov dword [ebp - 0xc], ecx
call fcn.004404ef
pop ecx
pop ecx
mov ecx, dword [ebp - 0xc]
jmp 0x453d6c
cmp ax, 0x25
je 0x453d76
inc ecx
inc ecx
mov dword [ebp - 0xc], ecx
mov ax, word [ecx]
cmp ax, si
jne 0x453d61
jmp 0x453d7c
add ecx, 2
mov dword [ebp + 8], ecx
cmp edi, esi
je 0x453e5f
mov esi, dword [edi + 4]
mov edx, dword [edi + 0x10]
mov ecx, dword [ebp - 0x2c]
cmp ecx, edx
mov eax, esi
lea ebx, [esi + edx*2]
mov dword [ebp - 0xc], eax
jle 0x453d9b
mov ecx, edx
test ecx, ecx
mov edi, dword [ebp - 0x14]
jl 0x453edf
test edi, edi
jl 0x453edf
test ecx, ecx
jle 0x453f33
lea edx, [esi + ecx*2]
cmp esi, edx
jae 0x453ed7
cmp word [eax], 0
je 0x453ecd
inc eax
inc eax
cmp eax, edx
mov dword [ebp - 0xc], eax
jb 0x453dc1
jmp 0x453ed7
lea esi, [eax - 2]
mov word [esi], dx
mov ecx, dword [ebp - 0xc]
mov dword [ebp - 0x20], esi
jmp 0x453df2
inc ecx
inc ecx
cmp ax, 0x3a
mov dword [ebp - 0xc], ecx
je 0x453dfc
mov ax, word [ecx]
cmp ax, dx
jne 0x453de7
jmp 0x453dff
mov dword [ebp - 0x20], ecx
cmp word [ebx], dx
je 0x453e33
cmp word [ebx + 2], 0x25
jne 0x453e33
lea eax, [ebx + 4]
cmp word [eax], 0x64
jne 0x453e33
jmp 0x453e1e
cmp cx, 0x25
je 0x453e2b
inc eax
inc eax
mov dword [ebp - 0xc], eax
mov cx, word [eax]
cmp cx, dx
jne 0x453e16
jmp 0x453e33
mov ebx, eax
add eax, 2
mov dword [ebp + 8], eax
mov ecx, dword [ebp - 0x18]
xor edi, edi
push edi
push 0xffffffffffffffff
push edi
push dword [ebp - 0x30]
mov word [ebx], di
call fcn.00410728
cmp esi, edi
mov word [ebx], 0x25
je 0x453e57
mov word [esi], 0x3f
inc esi
inc esi
cmp eax, edi
jne 0x453f16
cmp dword [ebp - 0x3c], 0
jne 0x453843
cmp byte [ebp - 5], 0
jne 0x453843
mov eax, dword [ebp - 0x1c]
mov byte [ebp - 5], 1
jmp 0x453bd8
mov word [edi], 0x3a
mov edi, dword [ebp - 0x20]
cmp edi, esi
jle 0x453e8d
mov edi, esi
mov ecx, dword [ebp - 0x2c]
cmp ecx, esi
jle 0x453e96
mov ecx, esi
test edi, edi
jge 0x453ea6
mov eax, esi
neg eax
cmp edi, eax
jge 0x453ea4
mov edi, eax
add edi, esi
mov eax, esi
sub eax, edi
test ecx, ecx
jge 0x453eb9
lea esi, [eax + ecx]
test esi, esi
jge 0x453ec5
xor esi, esi
jmp 0x453ec5
cmp esi, eax
jle 0x453ebf
mov esi, eax
cmp esi, ecx
jle 0x453ec5
mov esi, ecx
lea edi, [edx + edi*2]
jmp 0x453f6e
sub eax, esi
sar eax, 1
and dword [ebp - 0x14], 0
mov ecx, eax
mov edi, dword [ebp - 0x14]
lea esi, [esi + ecx*2]
jmp 0x453f33
cmp word [esi], 0
je 0x453ef4
cmp eax, ebx
jae 0x453ef4
inc eax
inc eax
mov dword [ebp - 0xc], eax
cmp word [eax], 0
jne 0x453ee5
sub eax, esi
sar eax, 1
test ecx, ecx
jge 0x453f02
add ecx, eax
jns 0x453f02
xor ecx, ecx
mov edi, dword [ebp - 0x14]
test edi, edi
jge 0x453f11
sub eax, ecx
add edi, eax
jns 0x453f11
xor edi, edi
lea esi, [esi + ecx*2]
jmp 0x453f33
push dword [ebp - 0x20]
lea ecx, [ebp - 0x1b8]
push ecx
push esi
lea ecx, [ebp - 0x34]
push ecx
push eax
call fcn.0044b8c2
mov edi, dword [ebp - 0x34]
add esp, 0x14
mov esi, eax
lea eax, [edi + 2]
push eax
lea ecx, [ebp - 0x60]
call fcn.0044b7d7
jmp 0x453f5b
mov ax, word [esi]
mov ecx, dword [ebp - 4]
mov word [ecx], ax
mov eax, dword [ebp - 4]
mov ax, word [eax]
add dword [ebp - 4], 2
inc esi
inc esi
test ax, ax
je 0x453f63
dec edi
jns 0x453f41
jmp 0x453843
sub dword [ebp - 4], 2
jmp 0x453843
mov edi, edx
lea eax, [esi + 2]
push eax
lea ecx, [ebp - 0x60]
call fcn.0044b7d7
dec esi
js 0x453843
lea eax, [esi + 1]
mov cx, word [edi]
mov edx, dword [ebp - 4]
mov word [edx], cx
add dword [ebp - 4], 2
inc edi
inc edi
dec eax
jne 0x453f84
jmp 0x453843
and word [eax], 0
mov eax, dword [ebp - 4]
sub eax, dword [ebp - 0x38]
mov ecx, dword [ebp + 0xc]
sar eax, 1
inc eax
inc eax
push eax
call fcn.00443fa0
mov esi, dword [ebp - 4]
sub esi, dword [ebp - 0x38]
lea ecx, [ebp - 0x24]
sar esi, 1
call fcn.0043db4f
mov eax, 0x4d8d24
test eax, eax
pop ebx
je 0x453fd3
push eax
call dword [sym.imp.KERNEL32.DLL_LeaveCriticalSection]
pop edi
mov eax, esi
pop esi
leave
ret 0x10