Function at 0x4dd300
Capabilities:
Enumerate pe sections
Validate payment card number using luhn algorithm

Disassembly:
mov eax, dword [esp + 0x18]
push ebx
mov ebx, dword [esp + 0xc]
push ebp
mov ebp, dword [esp + 0x14]
mov dword [eax], 0
mov al, byte [ebx]
push esi
mov esi, dword [esp + 0x10]
push edi
cmp al, 0xa
je 0x4dd851
cmp al, 0xd
je 0x4dd851
mov ecx, dword [esi + 0xc4]
lea edx, [esi + 0xc4]
mov edi, 4
lea eax, [ecx + 1]
mov dword [edx], eax
test ecx, ecx
jne 0x4dd77f
mov dword [esi + 0xd0], ecx
mov eax, dword [esi + 0x18]
mov eax, dword [eax + 0x260]
mov eax, dword [eax + 0x48]
test eax, 0xc0000003
je 0x4dd50f
mov al, byte [ebx]
mov edi, ebx
test al, al
je 0x4dd380
nop
cmp al, 0x20
je 0x4dd378
cmp al, 9
jne 0x4dd380
mov al, byte [edi + 1]
inc edi
test al, al
jne 0x4dd370
push 5
push str.HTTP_
push edi
call fcn.0055f890
add esp, 0xc
test eax, eax
jne 0x4dd440
movsx ecx, byte [edi + 5]
mov eax, ecx
sub eax, 0x31
je 0x4dd46d
sub eax, 1
je 0x4dd3c9
sub eax, 1
je 0x4dd3c9
push str.Unsupported_HTTP_version_in_response
push esi
call fcn.004ce010
add esp, 8
mov eax, 1
pop edi
pop esi
pop ebp
pop ebx
ret
mov al, byte [edi + 6]
cmp al, 0x20
je 0x4dd3d4
cmp al, 9
jne 0x4dd440
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 0x4dd440
mov dl, byte [edi + 8]
lea eax, [edx - 0x30]
cmp al, 9
ja 0x4dd440
mov dh, byte [edi + 9]
mov al, dh
sub al, 0x30
cmp al, 9
ja 0x4dd440
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 0x4dd5e7
cmp al, 9
je 0x4dd5e7
cmp al, 0xa
jl 0x4dd440
cmp al, 0xd
jle 0x4dd5e7
push ebp
push ebx
push esi
call fcn.004dc700
add esp, 0xc
cmp eax, 1
jne 0x4dd7a8
mov dword [esi + 0xd4], 0xc8
mov dword [esi + 0xd0], 0xa
jmp 0x4dd5e7
cmp byte [edi + 6], 0x2e
jne 0x4dd4f7
mov al, byte [edi + 7]
cmp al, 0x30
je 0x4dd482
cmp al, 0x31
jne 0x4dd4f7
mov cl, byte [edi + 8]
cmp cl, 0x20
je 0x4dd48f
cmp cl, 9
jne 0x4dd4f7
movsx eax, al
sub eax, 0x26
mov dword [esi + 0xd0], eax
mov cl, byte [edi + 9]
lea eax, [ecx - 0x30]
cmp al, 9
ja 0x4dd4f7
mov dl, byte [edi + 0xa]
lea eax, [edx - 0x30]
cmp al, 9
ja 0x4dd4f7
mov dh, byte [edi + 0xb]
mov al, dh
sub al, 0x30
cmp al, 9
ja 0x4dd4f7
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 0x4dd5e7
cmp al, 9
je 0x4dd5e7
sub al, 0xa
cmp al, 3
jbe 0x4dd5e7
push str.Unsupported_HTTP_1_subversion_in_response
push esi
call fcn.004ce010
add esp, 8
mov eax, 1
pop edi
pop esi
pop ebp
pop ebx
ret
test eax, 0x40000
je 0x4dd7a8
mov al, byte [ebx]
mov edi, ebx
test al, al
je 0x4dd532
cmp al, 0x20
je 0x4dd52a
cmp al, 9
jne 0x4dd532
mov al, byte [edi + 1]
inc edi
test al, al
jne 0x4dd522
push 5
push str.RTSP_
push edi
call fcn.0055f890
add esp, 0xc
test eax, eax
jne 0x4dd7a8
mov al, byte [edi + 5]
sub al, 0x30
cmp al, 9
ja 0x4dd7af
cmp byte [edi + 6], 0x2e
jne 0x4dd7af
mov al, byte [edi + 7]
sub al, 0x30
cmp al, 9
ja 0x4dd7af
mov al, byte [edi + 8]
cmp al, 0x20
je 0x4dd57d
cmp al, 9
jne 0x4dd7af
mov cl, byte [edi + 9]
lea eax, [ecx - 0x30]
cmp al, 9
ja 0x4dd7af
mov dl, byte [edi + 0xa]
lea eax, [edx - 0x30]
cmp al, 9
ja 0x4dd7af
mov dh, byte [edi + 0xb]
mov al, dh
sub al, 0x30
cmp al, 9
ja 0x4dd7af
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 0x4dd5dd
cmp al, 9
je 0x4dd5dd
sub al, 0xa
cmp al, 3
ja 0x4dd7af
mov dword [esi + 0xd0], 0xb
mov ecx, dword [esi + 0xd0]
mov eax, ecx
mov edi, dword [esi + 0x18]
sub eax, 0xa
je 0x4dd611
sub eax, 1
je 0x4dd611
mov eax, ecx
mov ecx, 0xa
cdq
idiv ecx
mov ecx, edx
mov edx, eax
mov eax, str.Unsupported_HTTP_version___u._d__in_response
jmp 0x4dd64e
mov al, byte [edi + 0x4d4]
test al, al
je 0x4dd664
movzx ecx, al
mov eax, 0xcccccccd
mul ecx
mov eax, 0x66666667
shr edx, 3
mov dword [esp + 0x28], edx
imul dword [esi + 0xd0]
sar edx, 2
mov ecx, edx
shr ecx, 0x1f
add ecx, edx
mov edx, dword [esp + 0x28]
cmp ecx, edx
je 0x4dd664
mov eax, str.Version_mismatch__from_HTTP__u_to_HTTP__u_
push ecx
push edx
push eax
push esi
call fcn.004ce010
add esp, 0x10
mov eax, 1
pop edi
pop esi
pop ebp
pop ebx
ret
mov eax, dword [esi + 0xd4]
mov dword [esi + 0xd18], eax
mov eax, dword [esi + 0xd0]
mov dword [esi + 0xd20], eax
movzx eax, byte [esi + 0xd0]
mov byte [edi + 0x4d4], al
mov al, byte [esi + 0xcf5]
test al, al
je 0x4dd69e
movzx eax, al
cmp eax, dword [esi + 0xd0]
jle 0x4dd6aa
mov al, byte [esi + 0xd0]
mov byte [esi + 0xcf5], al
mov eax, dword [esi + 0xbd8]
or eax, dword [esi + 0xbdc]
je 0x4dd6d4
cmp byte [esi + 0xcf6], 0
jne 0x4dd6d4
cmp dword [esi + 0xd4], 0x1a0
jne 0x4dd6d4
mov byte [esi + 0x136], 1
mov eax, dword [esi + 0xd0]
cmp eax, 0xa
jne 0x4dd6f7
push str.HTTP_1.0__assume_close_after_body
push esi
call fcn.004ce0e0
push 1
push edi
call fcn.004d0390
add esp, 0x10
jmp 0x4dd71a
cmp eax, 0x14
je 0x4dd70e
cmp dword [esi + 0xdc], 2
jne 0x4dd71a
cmp dword [esi + 0xd4], 0x65
jne 0x4dd71a
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 0x4dd74b
sub ecx, 0x64
jne 0x4dd77a
cmp byte [esi + 0x3b0], cl
je 0x4dd74b
mov byte [esi + 0xdd8], 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 fcn.00549e30
add esp, 0xc
test eax, eax
je 0x4dd7b9
mov eax, str.Nul_byte_in_header
push eax
push esi
call fcn.004ce010
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 0x4dd7fc
mov al, byte [ebx]
cmp al, 0x20
je 0x4dd7ce
cmp al, 9
jne 0x4dd7d3
cmp ecx, 2
jg 0x4dd7fc
push ebp
push 0x3a
push ebx
call fcn.00549e30
add esp, 0xc
test eax, eax
jne 0x4dd7fc
mov eax, str.Header_without_colon
push eax
push esi
call fcn.004ce010
add esp, 8
mov eax, 8
pop edi
pop esi
pop ebp
pop ebx
ret
push ebp
push ebx
push esi
call fcn.004dae30
add esp, 0xc
test eax, eax
jne 0x4dd930
push ebp
push ebx
push 1
push esi
call fcn.004cdf70
mov eax, dword [esi + 0xd4]
add esp, 0x10
sub eax, 0x64
cmp eax, 0x64
jae 0x4dd82d
or edi, 0x20
push ebp
push ebx
push edi
push esi
call fcn.004cf190
add esp, 0x10
test eax, eax
jne 0x4dd930
push eax
push ebp
push esi
call fcn.004da490
add esp, 0xc
pop edi
pop esi
pop ebp
pop ebx
ret
push ebp
push ebx
push 1
push esi
call fcn.004cdf70
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.004cf190
add esp, 0x20
test eax, eax
jne 0x4dd930
mov ecx, dword [esi + 0xbc]
mov edx, 0x4b000
add ecx, ebp
cmp ebp, edx
jae 0x4dd8c2
mov eax, dword [esi + 0xd58]
add dword [esi + 0xb8], ebp
add eax, ebp
mov dword [esi + 0xd58], eax
mov dword [esi + 0xbc], ecx
cmp ecx, edx
ja 0x4dd8c6
cmp eax, 0x5dc000
jbe 0x4dd8e0
mov ecx, eax
mov edx, 0x5dc000
jmp 0x4dd8c6
test ecx, ecx
je 0x4dd8e0
push edx
push ecx
push str.Too_large_response_headers:__zu____u
push esi
call fcn.004ce010
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 0x4dd8f6
mov eax, dword [esi + 0xb8]
jmp 0x4dd8f8
xor eax, eax
mov dword [esi + 0xc0], eax
lea eax, [esi + 0x880]
push eax
call fcn.004bb8f0
lea eax, [esp + 0x18]
push eax
push dword [esp + 0x2c]
push dword [esp + 0x2c]
push esi
call fcn.004dc850
add esp, 0x14
test eax, eax
jne 0x4dd930
mov ecx, dword [esp + 0x28]
mov eax, dword [esp + 0x14]
add dword [ecx], eax
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
ret