Function at 0x4d18f6
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x34
push ebx
xor ebx, ebx
test byte [ebp + 0x10], 0x80
push esi
push edi
mov esi, eax
mov dword [ebp - 0x24], ebx
mov dword [ebp - 0x28], ebx
mov byte [ebp - 2], bl
mov dword [ebp - 0x34], 0xc
mov dword [ebp - 0x30], ebx
je 0x4d1925
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4d192f
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004cf85d
test eax, eax
pop ecx
je 0x4d194a
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004b5e07
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004b9495
test eax, eax
pop ecx
je 0x4d1965
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004b5e07
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4d1982
test ecx, 0x74000
jne 0x4d197e
cmp dword [ebp - 0x24], eax
je 0x4d1982
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, connect
je 0x4d19dc
dec eax
je 0x4d19c6
dec eax
je 0x4d19c1
call fcn.004b93bb
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004b93a8
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004b5f03
add esp, 0x14
jmp 0x4d1f8e
mov dword [ebp - 8], edx
jmp 0x4d19df
test cl, 8
je 0x4d19d3
test ecx, 0x70000
jne 0x4d19c1
mov dword [ebp - 8], 0x40000000
jmp 0x4d19df
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4d1a20
sub eax, ecx
je 0x4d1a17
sub eax, ecx
je 0x4d1a0e
sub eax, ecx
je 0x4d1a05
sub eax, 0x40
jne 0x4d199b
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4d1a23
mov dword [ebp - 0x10], 3
jmp 0x4d1a23
mov dword [ebp - 0x10], 2
jmp 0x4d1a23
mov dword [ebp - 0x10], 1
jmp 0x4d1a23
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, 0x100
jg 0x4d1a76
je 0x4d1a6d
cmp eax, ebx
je 0x4d1a6d
cmp eax, edi
je 0x4d1a64
cmp eax, 0x200
je 0x4d1ae9
cmp eax, 0x300
jne 0x4d199b
mov dword [ebp - 0x14], 2
jmp 0x4d1a93
mov dword [ebp - 0x14], 4
jmp 0x4d1a93
mov dword [ebp - 0x14], 3
jmp 0x4d1a93
cmp eax, 0x500
je 0x4d1a8c
cmp eax, 0x600
je 0x4d1ae9
cmp eax, edx
jne 0x4d199b
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4d1ab7
mov ecx, dword [0x633bd8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4d1ab7
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4d1ad3
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4d1ad3
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4d1adc
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4d1af2
or dword [ebp - 0xc], 0x8000000
jmp 0x4d1afd
mov dword [ebp - 0x14], 5
jmp 0x4d1a93
test al, 0x10
je 0x4d1afd
or dword [ebp - 0xc], 0x10000000
call fcn.004bb2cc
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4d1b23
call fcn.004b93bb
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004b93a8
mov dword [eax], 0x18
jmp 0x4d1bb1
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileA]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x34]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x4d1bbd
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4d1b89
test byte [ebp + 0x10], 1
je 0x4d1b89
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
push dword [ebp - 0x14]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x4d1bbd
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x635980]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004b93ce
pop ecx
call fcn.004b93a8
mov eax, dword [eax]
jmp 0x4d204a
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4d1c0e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x635980]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004b93ce
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4d1bb1
call fcn.004b93a8
mov dword [eax], 0xd
jmp 0x4d1bb1
cmp eax, 2
jne 0x4d1c19
or byte [ebp - 1], 0x40
jmp 0x4d1c22
cmp eax, 3
jne 0x4d1c22
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004bb09b
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x635980]
pop ecx
pop ecx
mov cl, byte [ebp - 1]
or cl, 1
mov byte [edx + eax + 4], cl
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x635980]
lea eax, [edx + eax + 0x24]
and byte [eax], 0x80
mov byte [ebp - 3], cl
and byte [ebp - 3], 0x48
mov byte [ebp - 1], cl
jne 0x4d1cf7
test cl, 0x80
je 0x4d1dc7
test byte [ebp + 0x10], 2
je 0x4d1cf7
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004c3fe8
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4d1cb6
call fcn.004b93bb
cmp dword [eax], 0x83
je 0x4d1cf7
push dword [esi]
call fcn.004c421e
jmp 0x4d1bb0
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004c7ac5
add esp, 0xc
test eax, eax
jne 0x4d1ce7
cmp byte [ebp - 4], 0x1a
jne 0x4d1ce7
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004cf5ed
add esp, 0xc
cmp eax, edi
je 0x4d1caa
push ebx
push ebx
push dword [esi]
call fcn.004c3fe8
add esp, 0xc
cmp eax, edi
je 0x4d1caa
test byte [ebp - 1], 0x80
je 0x4d1dc7
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4d1d1f
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4d1d1c
or dword [ebp + 0x10], edi
jmp 0x4d1d1f
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4d1d6c
cmp eax, 0x10000
je 0x4d1d58
cmp eax, 0x14000
je 0x4d1d58
cmp eax, 0x20000
je 0x4d1d66
cmp eax, 0x24000
je 0x4d1d66
cmp eax, 0x40000
je 0x4d1d52
cmp eax, 0x44000
jne 0x4d1d6f
mov byte [ebp - 2], 1
jmp 0x4d1d6f
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4d1d6f
mov byte [ebp - 2], 2
jmp 0x4d1d6f
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4d1dc7
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4d1dc7
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4d1f21
cmp eax, 0x80000000
je 0x4d1ee8
cmp eax, ecx
jne 0x4d1dc7
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4d1dc7
cmp eax, 2
jbe 0x4d1fc9
cmp eax, 4
jbe 0x4d1eba
cmp eax, 5
je 0x4d1fc9
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x635980]
lea eax, [ecx + eax + 0x24]
mov cl, byte [eax]
xor cl, byte [ebp - 2]
and cl, 0x7f
xor byte [eax], cl
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x635980]
lea eax, [ecx + eax + 0x24]
mov ecx, dword [ebp + 0x10]
mov dl, byte [eax]
shr ecx, 0x10
shl cl, 7
and dl, 0x7f
or cl, dl
cmp byte [ebp - 3], bl
mov byte [eax], cl
jne 0x4d1e39
test byte [ebp + 0x10], 8
je 0x4d1e39
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x635980]
lea eax, [ecx + eax + 4]
or byte [eax], 0x20
mov edi, dword [ebp - 8]
mov eax, 0xc0000000
mov ecx, edi
and ecx, eax
cmp ecx, eax
jne 0x4d2048
test byte [ebp + 0x10], 1
je 0x4d2048
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
jne 0x4d2031
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004b93ce
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x635980]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004bb118
pop ecx
jmp 0x4d1bb0
push 2
push ebx
push ebx
push dword [esi]
call fcn.004c90a7
add esp, 0x10
or eax, edx
je 0x4d1fc9
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004c90a7
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4d1caa
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004c7ac5
add esp, 0xc
cmp eax, 0xffffffff
je 0x4d1caa
cmp eax, 2
je 0x4d1f6d
cmp eax, 3
jne 0x4d1fbb
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4d1f6d
mov byte [ebp - 2], 1
jmp 0x4d1dc7
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4d1dc7
cmp eax, 2
jbe 0x4d1fc9
cmp eax, 4
ja 0x4d1dbe
push 2
push ebx
push ebx
push dword [esi]
call fcn.004c90a7
add esp, 0x10
or eax, edx
je 0x4d1fc9
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004c90a7
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4d1dc7
jmp 0x4d1caa
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4d1f95
push dword [esi]
call fcn.004c421e
pop ecx
call fcn.004b93a8
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4d204a
cmp eax, 0xfeff
jne 0x4d1fbb
push ebx
push 2
push dword [esi]
call fcn.004c3fe8
add esp, 0xc
cmp eax, 0xffffffff
je 0x4d1caa
mov byte [ebp - 2], 2
jmp 0x4d1dc7
push ebx
push ebx
push dword [esi]
call fcn.004c3fe8
add esp, 0xc
jmp 0x4d1f5f
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4d1fe9
dec eax
jne 0x4d1dc7
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4d1ff7
mov dword [ebp - 0x18], 0xbfbbef
mov dword [ebp - 0x14], 3
mov eax, dword [ebp - 0x14]
sub eax, edi
push eax
lea eax, [ebp + edi - 0x18]
push eax
push dword [esi]
call fcn.004c3ad9
add esp, 0xc
cmp eax, 0xffffffff
je 0x4d201d
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4d1ff7
jmp 0x4d1dc7
push dword [esi]
call fcn.004c421e
pop ecx
call fcn.004b93a8
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4d204a
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x635980]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret