Function at 0x429ca0
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
sub esp, 0x10
push ebx
mov ebx, dword [esp + 0x1c]
push ebp
mov ebp, dword [esp + 0x30]
push esi
push edi
mov edi, dword [esp + 0x24]
mov dword [ebp], 0
mov al, byte [ebx]
cmp al, 0xa
je 0x42a217
cmp al, 0xd
je 0x42a217
mov ecx, dword [edi + 0xc4]
lea ebp, [edi + 0xc4]
mov esi, 4
lea eax, [ecx + 1]
mov dword [ebp], eax
test ecx, ecx
jne 0x42a131
mov dword [edi + 0xd0], ecx
mov eax, dword [edi + 0x18]
mov eax, dword [eax + 0x2ac]
mov eax, dword [eax + 0x48]
test al, 3
je 0x429eb9
mov al, byte [ebx]
mov esi, ebx
test al, al
je 0x429d21
nop dword [eax]
cmp al, 0x20
je 0x429d19
cmp byte [esi], 9
jne 0x429d21
mov al, byte [esi + 1]
inc esi
test al, al
jne 0x429d10
push 5
push str.HTTP_
push esi
call sub.api_ms_win_crt_string_l1_1_0.dll_strncmp
add esp, 0xc
test eax, eax
jne 0x429de4
movsx ecx, byte [esi + 5]
mov eax, ecx
sub eax, 0x31
je 0x429e14
sub eax, 1
je 0x429d6d
sub eax, 1
je 0x429d6d
push str.Unsupported_HTTP_version_in_response
push edi
call fcn.00417e30
add esp, 8
mov eax, 1
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret
mov al, byte [esi + 6]
cmp al, 0x20
je 0x429d78
cmp al, 9
jne 0x429de4
lea eax, [ecx - 0x30]
lea eax, [eax + eax*4]
add eax, eax
mov dword [edi + 0xd0], eax
mov cl, byte [esi + 7]
lea eax, [ecx - 0x30]
cmp al, 9
ja 0x429de4
mov dl, byte [esi + 8]
lea eax, [edx - 0x30]
cmp al, 9
ja 0x429de4
mov dh, byte [esi + 9]
mov al, dh
sub al, 0x30
cmp al, 9
ja 0x429de4
movsx eax, cl
lea ecx, [eax + eax*4]
movsx eax, dl
lea eax, [eax + ecx*2]
lea ecx, [eax + eax*4]
movsx eax, dh
lea eax, [eax + ecx*2]
add eax, 0xffffeb30
mov dword [edi + 0xd4], eax
mov al, byte [esi + 0xa]
cmp al, 0x20
je 0x429f96
cmp al, 9
je 0x429f96
cmp al, 0xa
jl 0x429de4
cmp al, 0xd
jle 0x429f96
push dword [esp + 0x2c]
push ebx
push edi
call fcn.004290b0
add esp, 0xc
cmp eax, 1
jne 0x42a160
mov dword [edi + 0xd4], 0xc8
mov dword [edi + 0xd0], 0xa
jmp 0x429f96
cmp byte [esi + 6], 0x2e
jne 0x429e9e
mov al, byte [esi + 7]
cmp al, 0x30
je 0x429e29
cmp al, 0x31
jne 0x429e9e
mov cl, byte [esi + 8]
cmp cl, 0x20
je 0x429e36
cmp cl, 9
jne 0x429e9e
movsx eax, al
sub eax, 0x26
mov dword [edi + 0xd0], eax
mov cl, byte [esi + 9]
lea eax, [ecx - 0x30]
cmp al, 9
ja 0x429e9e
mov dl, byte [esi + 0xa]
lea eax, [edx - 0x30]
cmp al, 9
ja 0x429e9e
mov dh, byte [esi + 0xb]
mov al, dh
sub al, 0x30
cmp al, 9
ja 0x429e9e
movsx eax, cl
lea ecx, [eax + eax*4]
movsx eax, dl
lea eax, [eax + ecx*2]
lea ecx, [eax + eax*4]
movsx eax, dh
lea eax, [eax + ecx*2]
add eax, 0xffffeb30
mov dword [edi + 0xd4], eax
mov al, byte [esi + 0xc]
cmp al, 0x20
je 0x429f96
cmp al, 9
je 0x429f96
sub al, 0xa
cmp al, 3
jbe 0x429f96
push str.Unsupported_HTTP_1_subversion_in_response
push edi
call fcn.00417e30
add esp, 8
mov eax, 1
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret
test eax, 0x40000
je 0x42a160
mov al, byte [ebx]
mov esi, ebx
test al, al
je 0x429ee1
nop dword [eax]
cmp al, 0x20
je 0x429ed9
cmp byte [esi], 9
jne 0x429ee1
mov al, byte [esi + 1]
inc esi
test al, al
jne 0x429ed0
push 5
push str.RTSP_
push esi
call sub.api_ms_win_crt_string_l1_1_0.dll_strncmp
add esp, 0xc
test eax, eax
jne 0x42a160
mov al, byte [esi + 5]
sub al, 0x30
cmp al, 9
ja 0x42a167
cmp byte [esi + 6], 0x2e
jne 0x42a167
mov al, byte [esi + 7]
sub al, 0x30
cmp al, 9
ja 0x42a167
mov al, byte [esi + 8]
cmp al, 0x20
je 0x429f2c
cmp al, 9
jne 0x42a167
mov cl, byte [esi + 9]
lea eax, [ecx - 0x30]
cmp al, 9
ja 0x42a167
mov dl, byte [esi + 0xa]
lea eax, [edx - 0x30]
cmp al, 9
ja 0x42a167
mov dh, byte [esi + 0xb]
mov al, dh
sub al, 0x30
cmp al, 9
ja 0x42a167
movsx eax, cl
lea ecx, [eax + eax*4]
movsx eax, dl
lea eax, [eax + ecx*2]
lea ecx, [eax + eax*4]
movsx eax, dh
lea eax, [eax + ecx*2]
add eax, 0xffffeb30
mov dword [edi + 0xd4], eax
mov al, byte [esi + 0xc]
cmp al, 0x20
je 0x429f8c
cmp al, 9
je 0x429f8c
sub al, 0xa
cmp al, 3
ja 0x42a167
mov dword [edi + 0xd0], 0xb
mov ecx, dword [edi + 0xd0]
mov eax, ecx
mov esi, dword [edi + 0x18]
sub eax, 0xa
je 0x429fc0
sub eax, 1
je 0x429fc0
mov eax, ecx
mov ecx, 0xa
cdq
idiv ecx
mov ebp, eax
mov ecx, edx
mov eax, str.Unsupported_HTTP_version___u._d__in_response
jmp 0x429ff7
mov al, byte [esi + 0x514]
test al, al
je 0x42a010
movzx ecx, al
mov eax, 0xcccccccd
mul ecx
mov eax, 0x66666667
mov ebp, edx
imul dword [edi + 0xd0]
shr ebp, 3
sar edx, 2
mov ecx, edx
shr ecx, 0x1f
add ecx, edx
cmp ecx, ebp
je 0x42a010
mov eax, str.Version_mismatch__from_HTTP__u_to_HTTP__u_
push ecx
push ebp
push eax
push edi
call fcn.00417e30
add esp, 0x10
mov eax, 1
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret
mov eax, dword [edi + 0xd4]
mov dword [edi + 0xd10], eax
mov eax, dword [edi + 0xd0]
mov dword [edi + 0xd18], eax
movzx eax, byte [edi + 0xd0]
mov byte [esi + 0x514], al
mov al, byte [edi + 0xced]
test al, al
je 0x42a04a
movzx eax, al
cmp eax, dword [edi + 0xd0]
jle 0x42a056
mov al, byte [edi + 0xd0]
mov byte [edi + 0xced], al
mov eax, dword [edi + 0xbd0]
or eax, dword [edi + 0xbd4]
je 0x42a080
cmp byte [edi + 0xcee], 0
jne 0x42a080
cmp dword [edi + 0xd4], 0x1a0
jne 0x42a080
mov byte [edi + 0x132], 1
mov eax, dword [edi + 0xd0]
cmp eax, 0xa
jne 0x42a0a3
push str.HTTP_1.0__assume_close_after_body
push edi
call fcn.00417f00
push 1
push esi
call fcn.0041a500
add esp, 0x10
jmp 0x42a0c6
cmp eax, 0x14
je 0x42a0ba
cmp dword [edi + 0xdc], 2
jne 0x42a0c6
cmp dword [edi + 0xd4], 0x65
jne 0x42a0c6
mov eax, dword [esi + 0x4e8]
mov dword [eax], 2
mov ecx, dword [edi + 0xd4]
lea eax, [ecx - 0x64]
cmp eax, 0x63
setbe al
mov byte [edi + 0x133], al
sub ecx, 0xcc
je 0x42a0f7
sub ecx, 0x64
jne 0x42a126
cmp byte [edi + 0x3b0], cl
je 0x42a0f7
mov byte [edi + 0xdd0], 1
mov dword [edi + 0x88], 0
mov dword [edi + 0x8c], 0
mov dword [edi + 0x90], 0
mov dword [edi + 0x94], 0
mov byte [edi + 0x133], 1
mov esi, 0xc
lea ebp, [edi + 0xc4]
push dword [esp + 0x2c]
push 0
push ebx
call sub.VCRUNTIME140.dll_memchr
add esp, 0xc
test eax, eax
je 0x42a174
mov eax, str.Nul_byte_in_header
push eax
push edi
call fcn.00417e30
add esp, 8
mov eax, 8
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret
mov byte [edi + 0x129], 0
pop edi
pop esi
pop ebp
mov eax, 8
pop ebx
add esp, 0x10
ret
mov ecx, dword [ebp]
cmp ecx, 2
jl 0x42a1bb
mov al, byte [ebx]
cmp al, 0x20
je 0x42a186
cmp al, 9
jne 0x42a18b
cmp ecx, 2
jg 0x42a1bb
mov ebp, dword [esp + 0x2c]
push ebp
push 0x3a
push ebx
call sub.VCRUNTIME140.dll_memchr
add esp, 0xc
test eax, eax
jne 0x42a1bf
mov eax, str.Header_without_colon
push eax
push edi
call fcn.00417e30
add esp, 8
mov eax, 8
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret
mov ebp, dword [esp + 0x2c]
push ebp
push ebx
push edi
call fcn.00427800
add esp, 0xc
test eax, eax
jne 0x42a292
push ebp
push ebx
push 1
push edi
call fcn.00417d90
mov eax, dword [edi + 0xd4]
add esp, 0x10
sub eax, 0x64
cmp eax, 0x64
jae 0x42a1f0
or esi, 0x20
push ebp
push ebx
push esi
push edi
call fcn.00419080
add esp, 0x10
test eax, eax
jne 0x42a292
push eax
push ebp
push edi
call fcn.00426e40
add esp, 0xc
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret
mov esi, dword [esp + 0x2c]
lea eax, [esi + 1]
push eax
lea eax, [esp + 0x14]
push eax
call fcn.0040af30
push esi
lea eax, [esp + 0x1c]
push ebx
push eax
call fcn.0040aef0
add esp, 0x14
test eax, eax
jne 0x42a292
lea eax, [edi + 0x878]
push eax
call fcn.0040af70
add esp, 4
lea eax, [esp + 0x24]
push eax
push dword [esp + 0x38]
lea eax, [esp + 0x18]
push dword [esp + 0x38]
push eax
call fcn.0040af50
add esp, 4
push eax
lea eax, [esp + 0x20]
push eax
call fcn.0040af60
add esp, 4
push eax
push edi
call fcn.00429200
mov ecx, dword [esp + 0x3c]
mov esi, eax
add dword [ebp], ecx
lea eax, [esp + 0x28]
push eax
call fcn.0040af00
add esp, 0x1c
mov eax, esi
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret