Function at 0x425730
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
push ebx
mov ebx, dword [esp + 0xc]
push ebp
mov ebp, dword [esp + 0x14]
push esi
mov esi, dword [esp + 0x10]
push edi
mov edi, dword [esp + 0x28]
mov dword [edi], 0
mov al, byte [ebx]
cmp al, 0xa
je 0x425c8f
cmp al, 0xd
je 0x425c8f
mov ecx, dword [esi + 0xc4]
mov edi, 4
lea eax, [ecx + 1]
mov dword [esi + 0xc4], eax
test ecx, ecx
jne 0x425bbd
mov dword [esi + 0xd0], ecx
mov eax, dword [esi + 0x18]
mov eax, dword [eax + 0x260]
mov eax, dword [eax + 0x48]
test al, 3
je 0x425940
mov al, byte [ebx]
mov edi, ebx
test al, al
je 0x4257b0
nop word [eax + eax]
cmp al, 0x20
je 0x4257a8
cmp al, 9
jne 0x4257b0
mov al, byte [edi + 1]
inc edi
test al, al
jne 0x4257a0
push 5
push str.HTTP_
push edi
call dword [sym.imp.api_ms_win_crt_string_l1_1_0.dll_strncmp]
add esp, 0xc
test eax, eax
jne 0x425871
movsx ecx, byte [edi + 5]
mov eax, ecx
sub eax, 0x31
je 0x42589e
sub eax, 1
je 0x4257fa
sub eax, 1
je 0x4257fa
push str.Unsupported_HTTP_version_in_response
push esi
call fcn.00416d50
add esp, 8
mov eax, 1
pop edi
pop esi
pop ebp
pop ebx
ret
mov al, byte [edi + 6]
cmp al, 0x20
je 0x425805
cmp al, 9
jne 0x425871
lea eax, [ecx - 0x30]
lea eax, [eax + eax*4]
add eax, eax
mov dword [esi + 0xd0], eax
mov cl, byte [edi + 7]
lea eax, [ecx - 0x30]
cmp al, 9
ja 0x425871
mov dl, byte [edi + 8]
lea eax, [edx - 0x30]
cmp al, 9
ja 0x425871
mov dh, byte [edi + 9]
mov al, dh
sub al, 0x30
cmp al, 9
ja 0x425871
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 [esi + 0xd4], eax
mov al, byte [edi + 0xa]
cmp al, 0x20
je 0x425a19
cmp al, 9
je 0x425a19
cmp al, 0xa
jl 0x425871
cmp al, 0xd
jle 0x425a19
push ebp
push ebx
push esi
call fcn.00424b80
add esp, 0xc
cmp eax, 1
jne 0x425be6
mov dword [esi + 0xd4], 0xc8
mov dword [esi + 0xd0], 0xa
jmp 0x425a19
cmp byte [edi + 6], 0x2e
jne 0x425928
mov al, byte [edi + 7]
cmp al, 0x30
je 0x4258b3
cmp al, 0x31
jne 0x425928
mov cl, byte [edi + 8]
cmp cl, 0x20
je 0x4258c0
cmp cl, 9
jne 0x425928
movsx eax, al
sub eax, 0x26
mov dword [esi + 0xd0], eax
mov cl, byte [edi + 9]
lea eax, [ecx - 0x30]
cmp al, 9
ja 0x425928
mov dl, byte [edi + 0xa]
lea eax, [edx - 0x30]
cmp al, 9
ja 0x425928
mov dh, byte [edi + 0xb]
mov al, dh
sub al, 0x30
cmp al, 9
ja 0x425928
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 [esi + 0xd4], eax
mov al, byte [edi + 0xc]
cmp al, 0x20
je 0x425a19
cmp al, 9
je 0x425a19
sub al, 0xa
cmp al, 3
jbe 0x425a19
push str.Unsupported_HTTP_1_subversion_in_response
push esi
call fcn.00416d50
add esp, 8
mov eax, 1
pop edi
pop esi
pop ebp
pop ebx
ret
test eax, 0x40000
je 0x425be6
mov al, byte [ebx]
mov edi, ebx
test al, al
je 0x425963
cmp al, 0x20
je 0x42595b
cmp al, 9
jne 0x425963
mov al, byte [edi + 1]
inc edi
test al, al
jne 0x425953
push 5
push str.RTSP_
push edi
call dword [sym.imp.api_ms_win_crt_string_l1_1_0.dll_strncmp]
add esp, 0xc
test eax, eax
jne 0x425be6
mov al, byte [edi + 5]
sub al, 0x30
cmp al, 9
ja 0x425bed
cmp byte [edi + 6], 0x2e
jne 0x425bed
mov al, byte [edi + 7]
sub al, 0x30
cmp al, 9
ja 0x425bed
mov al, byte [edi + 8]
cmp al, 0x20
je 0x4259af
cmp al, 9
jne 0x425bed
mov cl, byte [edi + 9]
lea eax, [ecx - 0x30]
cmp al, 9
ja 0x425bed
mov dl, byte [edi + 0xa]
lea eax, [edx - 0x30]
cmp al, 9
ja 0x425bed
mov dh, byte [edi + 0xb]
mov al, dh
sub al, 0x30
cmp al, 9
ja 0x425bed
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 [esi + 0xd4], eax
mov al, byte [edi + 0xc]
cmp al, 0x20
je 0x425a0f
cmp al, 9
je 0x425a0f
sub al, 0xa
cmp al, 3
ja 0x425bed
mov dword [esi + 0xd0], 0xb
mov ecx, dword [esi + 0xd0]
mov eax, ecx
mov edi, dword [esi + 0x18]
sub eax, 0xa
je 0x425a49
sub eax, 1
je 0x425a49
mov eax, ecx
mov ecx, 0xa
cdq
idiv ecx
mov ecx, str.Unsupported_HTTP_version___u._d__in_response
mov dword [esp + 0x14], edx
mov edx, eax
mov eax, dword [esp + 0x14]
jmp 0x425a88
mov al, byte [edi + 0x4d4]
test al, al
je 0x425a9e
movzx ecx, al
mov eax, 0xcccccccd
mul ecx
mov eax, 0x66666667
mov ecx, edx
imul dword [esi + 0xd0]
shr ecx, 3
sar edx, 2
mov eax, edx
mov dword [esp + 0x14], ecx
shr eax, 0x1f
add eax, edx
cmp eax, ecx
je 0x425a9e
mov edx, dword [esp + 0x14]
mov ecx, str.Version_mismatch__from_HTTP__u_to_HTTP__u_
push eax
push edx
push ecx
push esi
call fcn.00416d50
add esp, 0x10
mov eax, 1
pop edi
pop esi
pop ebp
pop ebx
ret
mov eax, dword [esi + 0xd4]
mov dword [esi + 0xd08], eax
mov eax, dword [esi + 0xd0]
mov dword [esi + 0xd10], eax
movzx eax, byte [esi + 0xd0]
mov byte [edi + 0x4d4], al
mov al, byte [esi + 0xce5]
test al, al
je 0x425adc
mov ecx, dword [esi + 0xd0]
movzx eax, al
cmp eax, ecx
jle 0x425aee
jmp 0x425ae2
mov cl, byte [esi + 0xd0]
mov byte [esi + 0xce5], cl
mov ecx, dword [esi + 0xd0]
mov eax, dword [esi + 0xbc8]
or eax, dword [esi + 0xbcc]
je 0x425b18
cmp byte [esi + 0xce6], 0
jne 0x425b18
cmp dword [esi + 0xd4], 0x1a0
jne 0x425b18
mov byte [esi + 0x136], 1
cmp ecx, 0xa
jne 0x425b35
push str.HTTP_1.0__assume_close_after_body
push esi
call fcn.00416e20
push 1
push edi
call fcn.00419120
add esp, 0x10
jmp 0x425b58
cmp ecx, 0x14
je 0x425b4c
cmp dword [esi + 0xdc], 2
jne 0x425b58
cmp dword [esi + 0xd4], 0x65
jne 0x425b58
mov eax, dword [edi + 0x4a8]
mov dword [eax], 2
mov ecx, dword [esi + 0xd4]
lea eax, [ecx - 0x64]
cmp eax, 0x63
setbe al
mov byte [esi + 0x137], al
sub ecx, 0xcc
je 0x425b89
sub ecx, 0x64
jne 0x425bb8
cmp byte [esi + 0x3b0], cl
je 0x425b89
mov byte [esi + 0xdc8], 1
mov dword [esi + 0x88], 0
mov dword [esi + 0x8c], 0
mov dword [esi + 0x90], 0
mov dword [esi + 0x94], 0
mov byte [esi + 0x137], 1
mov edi, 0xc
push ebp
push 0
push ebx
call sub.VCRUNTIME140.dll_memchr
add esp, 0xc
test eax, eax
je 0x425bf7
mov eax, str.Nul_byte_in_header
push eax
push esi
call fcn.00416d50
add esp, 8
mov eax, 8
pop edi
pop esi
pop ebp
pop ebx
ret
mov byte [esi + 0x12d], 0
pop edi
pop esi
pop ebp
mov eax, 8
pop ebx
ret
mov ecx, dword [esi + 0xc4]
cmp ecx, 2
jl 0x425c3a
mov al, byte [ebx]
cmp al, 0x20
je 0x425c0c
cmp al, 9
jne 0x425c11
cmp ecx, 2
jg 0x425c3a
push ebp
push 0x3a
push ebx
call sub.VCRUNTIME140.dll_memchr
add esp, 0xc
test eax, eax
jne 0x425c3a
mov eax, str.Header_without_colon
push eax
push esi
call fcn.00416d50
add esp, 8
mov eax, 8
pop edi
pop esi
pop ebp
pop ebx
ret
push ebp
push ebx
push esi
call fcn.00423320
add esp, 0xc
test eax, eax
jne 0x425d6c
push ebp
push ebx
push 1
push esi
call fcn.00416ca0
mov eax, dword [esi + 0xd4]
add esp, 0x10
sub eax, 0x64
cmp eax, 0x64
jae 0x425c6b
or edi, 0x20
push ebp
push ebx
push edi
push esi
call fcn.00417f00
add esp, 0x10
test eax, eax
jne 0x425d6c
push eax
push ebp
push esi
call fcn.00422960
add esp, 0xc
pop edi
pop esi
pop ebp
pop ebx
ret
push ebp
push ebx
push 1
push esi
call fcn.00416ca0
mov eax, dword [esi + 0xd4]
sub eax, 0x64
cmp eax, 0x64
push ebp
sbb eax, eax
and eax, 0x20
add eax, 4
push ebx
push eax
push esi
call fcn.00417f00
add esp, 0x20
test eax, eax
jne 0x425d6c
mov ecx, dword [esi + 0xbc]
mov edx, 0x4b000
add ecx, ebp
cmp ebp, edx
jae 0x425d00
mov eax, dword [esi + 0xd48]
add dword [esi + 0xb8], ebp
add eax, ebp
mov dword [esi + 0xd48], eax
mov dword [esi + 0xbc], ecx
cmp ecx, edx
ja 0x425d06
cmp eax, 0x5dc000
jbe 0x425d20
mov ecx, eax
mov edx, 0x5dc000
jmp 0x425d06
mov eax, ecx
test eax, eax
je 0x425d20
push edx
push ecx
push str.Too_large_response_headers:__zu____u
push esi
call fcn.00416d50
add esp, 0x10
mov eax, 0x38
pop edi
pop esi
pop ebp
pop ebx
ret
mov eax, dword [esi + 0xd4]
sub eax, 0x64
cmp eax, 0x63
ja 0x425d36
mov eax, dword [esi + 0xb8]
jmp 0x425d38
xor eax, eax
mov dword [esi + 0xc0], eax
lea eax, [esi + 0x870]
push eax
call fcn.0040acb0
lea eax, [esp + 0x18]
push eax
push dword [esp + 0x2c]
push dword [esp + 0x2c]
push esi
call fcn.00424cd0
add esp, 0x14
test eax, eax
jne 0x425d6c
mov eax, dword [esp + 0x14]
add dword [edi], eax
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
ret