Function at 0x540bb0
Capabilities:
Receive data
Receive data on socket
Send data
Send data on socket

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x5c16b0
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x10
push ebx
mov ebx, ecx
push esi
push edi
mov al, byte [ebx + 0x30d6]
mov dword [ebp - 0x10], esp
test al, al
mov dword [ebp - 0x1c], ebx
mov dword [ebp - 4], 0
jne 0x540c9d
mov eax, dword [ebx + 0x30c0]
lea esi, [ebx + 0xb4]
push 0
push 1
push esi
push eax
call sub.WSOCK32.dll_recv
push 0x66c820
push eax
mov ecx, ebx
call fcn.00508e20
mov ecx, eax
test ecx, ecx
je 0x540c31
sub eax, 0x2733
neg eax
sbb eax, eax
and eax, ecx
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov byte [ebx + 0x30d6], 1
mov ecx, dword [0x6754d4]
mov dword [ebp - 0x14], ecx
movsx edx, byte [esi]
push edx
lea eax, [ebp - 0x14]
push 0x66c800
push eax
mov byte [ebp - 4], 1
call fcn.00593b08
mov ecx, dword [ebp - 0x14]
add esp, 0xc
push ecx
mov ecx, ebx
call fcn.00508d80
mov edx, dword [ebx + 0x30c0]
push 0
push edx
mov ecx, ebx
call fcn.005092d0
test eax, eax
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x14]
je 0x540c98
call fcn.0059ad3d
xor eax, eax
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
call fcn.0059ad3d
mov eax, dword [ebx + 0x30e4]
test eax, eax
jne 0x540cba
push 0x600
call fcn.005970d9
add esp, 4
mov dword [ebx + 0x30e4], eax
mov eax, dword [ebx + 0x30e8]
test eax, eax
jne 0x540cd7
push 0x600
call fcn.005970d9
add esp, 4
mov dword [ebx + 0x30e8], eax
mov ecx, dword [ebx + 0x30e4]
test ecx, ecx
je 0x540f77
mov eax, dword [ebx + 0x30e8]
test eax, eax
je 0x540f77
mov al, byte [ebx + 0x30d7]
test al, al
jne 0x540e0c
mov eax, dword [ebx + 0x30f0]
mov edx, 0x600
sub edx, eax
push 0
add eax, ecx
push edx
push eax
mov eax, dword [ebx + 0x30c0]
push eax
call sub.WSOCK32.dll_recv
mov esi, eax
push 0x66c7ec
push esi
mov ecx, ebx
call fcn.00508e20
mov ecx, eax
test ecx, ecx
je 0x540d51
sub eax, 0x2733
neg eax
sbb eax, eax
and eax, ecx
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov ecx, dword [ebx + 0x30f0]
add ecx, esi
mov eax, ecx
mov dword [ebx + 0x30f0], ecx
cmp eax, 0x600
jge 0x540d7b
xor eax, eax
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov byte [ebx + 0x30d7], 1
mov ecx, dword [0x6754d4]
mov dword [ebp - 0x18], ecx
mov edx, dword [ebx + 0x30e4]
mov byte [ebp - 4], 2
mov eax, dword [edx]
push eax
call sub.WSOCK32.dll_ntohl
mov ecx, dword [ebx + 0x30e4]
movsx edx, byte [ecx + 7]
push edx
movsx edx, byte [ecx + 6]
push edx
movsx edx, byte [ecx + 5]
movsx ecx, byte [ecx + 4]
push edx
push ecx
push eax
lea edx, [ebp - 0x18]
push 0x66c7c4
push edx
call fcn.00593b08
mov eax, dword [ebp - 0x18]
add esp, 0x1c
mov ecx, ebx
push eax
call fcn.00508d80
mov ecx, dword [ebx + 0x30c0]
push 0
push ecx
mov ecx, ebx
call fcn.005092d0
test eax, eax
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x18]
je 0x540e07
call fcn.0059ad3d
xor eax, eax
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
call fcn.0059ad3d
mov eax, dword [ebx + 0x30f4]
mov ecx, dword [ebx + 0x30e8]
mov edx, 0x600
push 0
sub edx, eax
add ecx, eax
push edx
mov edx, dword [ebx + 0x30c0]
push ecx
push edx
call sub.WSOCK32.dll_recv
mov esi, eax
push 0x66c7b0
push esi
mov ecx, ebx
call fcn.00508e20
mov ecx, eax
test ecx, ecx
je 0x540e62
sub eax, 0x2733
neg eax
sbb eax, eax
and eax, ecx
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov ecx, dword [ebx + 0x30f4]
add ecx, esi
mov eax, ecx
mov dword [ebx + 0x30f4], ecx
cmp eax, 0x600
jge 0x540e8c
xor eax, eax
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov esi, dword [ebx + 0x30ec]
mov edi, dword [ebx + 0x30e8]
inc esi
mov ecx, 0x180
xor eax, eax
repe cmpsd dword [esi], dword es:[edi]
sete al
test al, al
jne 0x540eb5
push 0x66c784
mov ecx, ebx
call fcn.00508d80
mov ecx, dword [ebx + 0x30e4]
mov edx, dword [ebx + 0x30c0]
xor esi, esi
push 0x66c770
push esi
push 0x600
push ecx
push edx
call sub.WSOCK32.dll_send
push eax
mov ecx, ebx
call fcn.00508e20
cmp eax, esi
jne 0x540f7c
mov eax, dword [ebx + 0x30ec]
mov byte [ebp - 4], 3
push eax
call fcn.00597102
mov eax, dword [ebx + 0x30e4]
add esp, 4
push eax
call fcn.00597102
mov eax, dword [ebx + 0x30e8]
add esp, 4
push eax
call fcn.00597102
add esp, 4
jmp 0x540f23
mov ecx, ebx
mov dword [ebp - 4], esi
mov dword [ebx + 0x30ec], esi
mov dword [ebx + 0x30e4], esi
mov dword [ebx + 0x30e8], esi
call fcn.00541610
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov eax, 8
mov ecx, dword [ebp - 0xc]
pop edi
pop esi
mov dword fs:[0], ecx
pop ebx
mov esp, ebp
pop ebp
ret