Function at 0x140136790
Capabilities:
Validate payment card number using luhn algorithm

Disassembly:
mov qword [rsp + 8], rbx
mov qword [rsp + 0x10], rbp
mov qword [rsp + 0x18], rsi
mov qword [rsp + 0x20], rdi
push r12
push r14
push r15
sub rsp, 0x50
mov r14, qword [rsp + 0x98]
xor r12d, r12d
mov r15, r9
mov rbp, r8
mov rsi, rdx
mov rdi, rcx
mov qword [r14], r12
movzx eax, byte [rdx]
cmp al, 0xa
je 0x140136d19
cmp al, 0xd
je 0x140136d19
lea r14, [rcx + 0x13c]
mov ebx, 4
mov ecx, dword [r14]
mov r15d, 1
lea eax, [rcx + 1]
mov dword [r14], eax
test ecx, ecx
jne 0x140136c34
mov dword [rdi + 0x148], r12d
mov rax, qword [rdi + 0x18]
mov rcx, qword [rax + 0x3d8]
mov eax, dword [rcx + 0x8c]
test eax, 0xc0000003
je 0x1401369c6
movzx eax, byte [rdx]
mov rbx, rdx
test al, al
je 0x140136844
nop dword [rax + rax]
cmp al, 0x20
je 0x140136839
cmp byte [rbx], 9
jne 0x140136844
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x140136830
mov r8d, 5
lea rdx, str.HTTP_
mov rcx, rbx
call qword [sym.imp.api_ms_win_crt_string_l1_1_0.dll_strncmp]
test eax, eax
jne 0x1401368fe
movsx edx, byte [rbx + 5]
mov ecx, edx
sub ecx, 0x31
je 0x14013692e
sub ecx, r15d
je 0x140136892
cmp ecx, r15d
je 0x140136892
lea rdx, str.Unsupported_HTTP_version_in_response
mov rcx, rdi
call fcn.140124920
mov eax, r15d
jmp 0x140136da2
movzx eax, byte [rbx + 6]
cmp al, 0x20
je 0x14013689e
cmp al, 9
jne 0x1401368fe
lea eax, [rdx - 0x30]
lea ecx, [rax + rax*4]
add ecx, ecx
mov dword [rdi + 0x148], ecx
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x1401368fe
movsx edx, byte [rbx + 8]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x1401368fe
movsx r8d, byte [rbx + 9]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x1401368fe
lea ecx, [rcx + rcx*4]
lea ecx, [rdx + rcx*2]
lea ecx, [rcx + rcx*4]
lea ecx, [rcx - 0xa68]
lea ecx, [r8 + rcx*2]
mov dword [rdi + 0x14c], ecx
movzx eax, byte [rbx + 0xa]
cmp al, 0x20
je 0x140136ab0
sub al, 9
cmp al, 4
jbe 0x140136ab0
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.140135bf0
cmp eax, r15d
jne 0x140136c5f
mov dword [rdi + 0x14c], 0xc8
mov dword [rdi + 0x148], 0xa
jmp 0x140136ab0
cmp byte [rbx + 6], 0x2e
jne 0x1401369af
movsx ecx, byte [rbx + 7]
lea eax, [rcx - 0x30]
cmp al, r15b
ja 0x1401369af
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x14013694c
cmp al, 9
jne 0x1401369af
lea eax, [rcx - 0x26]
mov dword [rdi + 0x148], eax
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x1401369af
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x1401369af
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x1401369af
lea ecx, [rcx + rcx*4]
lea ecx, [rdx + rcx*2]
lea ecx, [rcx + rcx*4]
lea ecx, [rcx - 0xa68]
lea ecx, [r8 + rcx*2]
mov dword [rdi + 0x14c], ecx
movzx eax, byte [rbx + 0xc]
cmp al, 0x20
je 0x140136ab0
cmp al, 9
je 0x140136ab0
sub al, 0xa
cmp al, 3
jbe 0x140136ab0
lea rdx, str.Unsupported_HTTP_1_subversion_in_response
mov rcx, rdi
call fcn.140124920
mov eax, r15d
jmp 0x140136da2
bt eax, 0x12
jae 0x140136c5f
movzx eax, byte [rdx]
mov rbx, rsi
test al, al
je 0x1401369f4
nop word [rax + rax]
cmp al, 0x20
je 0x1401369e9
cmp byte [rbx], 9
jne 0x1401369f4
movzx eax, byte [rbx + 1]
inc rbx
test al, al
jne 0x1401369e0
mov r8d, 5
lea rdx, str.RTSP_
mov rcx, rbx
call qword [sym.imp.api_ms_win_crt_string_l1_1_0.dll_strncmp]
test eax, eax
jne 0x140136c5f
movzx eax, byte [rbx + 5]
sub al, 0x30
cmp al, 9
ja 0x140136c66
cmp byte [rbx + 6], 0x2e
jne 0x140136c66
movzx eax, byte [rbx + 7]
sub al, 0x30
cmp al, 9
ja 0x140136c66
movzx eax, byte [rbx + 8]
cmp al, 0x20
je 0x140136a48
cmp al, 9
jne 0x140136c66
movsx ecx, byte [rbx + 9]
lea eax, [rcx - 0x30]
cmp al, 9
ja 0x140136c66
movsx edx, byte [rbx + 0xa]
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x140136c66
movsx r8d, byte [rbx + 0xb]
lea eax, [r8 - 0x30]
cmp al, 9
ja 0x140136c66
lea ecx, [rcx + rcx*4]
lea ecx, [rdx + rcx*2]
lea ecx, [rcx + rcx*4]
lea ecx, [rcx - 0xa68]
lea ecx, [r8 + rcx*2]
mov dword [rdi + 0x14c], ecx
movzx eax, byte [rbx + 0xc]
cmp al, 0x20
je 0x140136aa6
cmp al, 9
je 0x140136aa6
sub al, 0xa
cmp al, 3
ja 0x140136c66
mov dword [rdi + 0x148], recvfrom
mov r9d, dword [rdi + 0x148]
mov ecx, r9d
mov rbx, qword [rdi + 0x18]
sub ecx, 0xa
je 0x140136b05
sub ecx, r15d
je 0x140136b05
cmp ecx, 9
je 0x140136b05
mov eax, 0x66666667
mov rcx, rdi
imul r9d
mov r8d, edx
lea rdx, str.Unsupported_HTTP_version___u._d__in_response
sar r8d, 2
mov eax, r8d
shr eax, 0x1f
add r8d, eax
lea eax, [r8 + r8*4]
add eax, eax
sub r9d, eax
call fcn.140124920
mov eax, r15d
jmp 0x140136da2
movzx eax, byte [rbx + 0x5d8]
test al, al
je 0x140136b54
mov ecx, eax
mov eax, 0xcccccccd
mul ecx
mov eax, 0x66666667
mov r8d, edx
imul r9d
shr r8d, 3
mov r9d, edx
sar r9d, 2
mov eax, r9d
shr eax, 0x1f
add r9d, eax
cmp r9d, r8d
je 0x140136b54
lea rdx, str.Version_mismatch__from_HTTP__u_to_HTTP__u_
mov rcx, rdi
call fcn.140124920
mov eax, r15d
jmp 0x140136da2
mov eax, dword [rdi + 0x14c]
mov dword [rdi + 0x12c0], eax
mov eax, dword [rdi + 0x148]
mov dword [rdi + 0x12c8], eax
movzx eax, byte [rdi + 0x148]
mov byte [rbx + 0x5d8], al
movzx eax, byte [rdi + 0x12a1]
test al, al
je 0x140136b8c
cmp eax, dword [rdi + 0x148]
jle 0x140136b99
movzx eax, byte [rdi + 0x148]
mov byte [rdi + 0x12a1], al
cmp qword [rdi + 0x1098], r12
je 0x140136bbe
cmp byte [rdi + 0x12a2], r12b
jne 0x140136bbe
cmp dword [rdi + 0x14c], 0x1a0
jne 0x140136bbe
mov byte [rdi + 0x1e3], r15b
cmp dword [rdi + 0x148], 0xa
jne 0x140136be1
lea rdx, str.HTTP_1.0__assume_close_after_body
mov rcx, rdi
call fcn.140124a10
mov edx, r15d
mov rcx, rbx
call fcn.140127820
mov ecx, dword [rdi + 0x14c]
lea eax, [rcx - 0x64]
cmp eax, 0x63
setbe al
mov byte [rdi + 0x1e4], al
sub ecx, 0xcc
je 0x140136c13
cmp ecx, 0x64
jne 0x140136c28
cmp byte [rdi + 0x530], r12b
je 0x140136c13
mov byte [rdi + 0x139c], r15b
mov qword [rdi + 0x100], r12
mov qword [rdi + 0x108], r12
mov byte [rdi + 0x1e4], r15b
mov ebx, ntohs
lea r14, [rdi + 0x13c]
mov r8, rbp
xor edx, edx
mov rcx, rsi
call sub.VCRUNTIME140.dll_memchr
test rax, rax
je 0x140136c70
lea rdx, str.Nul_byte_in_header
mov rcx, rdi
mov ebx, 8
call fcn.140124920
jmp 0x140136da0
mov byte [rdi + 0x1d9], r12b
mov eax, 8
jmp 0x140136da2
mov ecx, dword [r14]
cmp ecx, 2
jl 0x140136cb6
movzx eax, byte [rsi]
cmp al, 0x20
je 0x140136c83
cmp al, 9
jne 0x140136c88
cmp ecx, 2
jg 0x140136cb6
mov r8, rbp
mov edx, 0x3a
mov rcx, rsi
call sub.VCRUNTIME140.dll_memchr
test rax, rax
jne 0x140136cb6
lea rdx, str.Header_without_colon
mov rcx, rdi
mov ebx, 8
call fcn.140124920
jmp 0x140136da0
mov r8, rbp
mov rdx, rsi
mov rcx, rdi
call fcn.140133a80
test eax, eax
jne 0x140136da2
mov r9, rbp
mov r8, rsi
mov edx, r15d
mov rcx, rdi
call fcn.140124830
mov eax, dword [rdi + 0x14c]
sub eax, 0x64
cmp eax, 0x64
jae 0x140136cee
or ebx, 0x20
mov r9, rbp
mov r8, rsi
mov edx, ebx
mov rcx, rdi
call fcn.140125de0
test eax, eax
jne 0x140136da2
xor r8d, r8d
mov rdx, rbp
mov rcx, rdi
call fcn.140132ee0
jmp 0x140136da2
lea rdx, [r8 + 1]
lea rcx, [rsp + 0x30]
call fcn.140114430
mov r8, rbp
lea rcx, [rsp + 0x30]
mov rdx, rsi
call fcn.1401143f0
test eax, eax
jne 0x140136da2
lea rcx, [rdi + 0xbd0]
call fcn.140114450
lea rcx, [rsp + 0x30]
call fcn.140111f50
lea rcx, [rsp + 0x30]
mov rbx, rax
call fcn.140046bc0
mov rcx, qword [rsp + 0x90]
mov rdx, rax
lea rax, [rsp + 0x98]
mov r9, r15
mov qword [rsp + 0x28], rax
mov r8, rbx
mov qword [rsp + 0x20], rcx
mov rcx, rdi
call fcn.140135cc0
mov rcx, qword [rsp + 0x98]
mov ebx, eax
add qword [r14], rcx
lea rcx, [rsp + 0x30]
call fcn.140114400
mov eax, ebx
lea r11, [rsp + 0x50]
mov rbx, qword [r11 + 0x20]
mov rbp, qword [r11 + 0x28]
mov rsi, qword [r11 + 0x30]
mov rdi, qword [r11 + 0x38]
mov rsp, r11
pop r15
pop r14
pop r12
ret