Function at 0x49d316
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 0x49d345
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x49d34f
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004a2644
test eax, eax
pop ecx
je 0x49d36a
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0047d658
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00482a41
test eax, eax
pop ecx
je 0x49d385
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0047d658
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x49d3a2
test ecx, 0x74000
jne 0x49d39e
cmp dword [ebp - 0x24], eax
je 0x49d3a2
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x49d3fc
dec eax
je 0x49d3e6
dec eax
je 0x49d3e1
call fcn.0048301d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0048300a
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0047d78c
add esp, 0x14
jmp 0x49d9ae
mov dword [ebp - 8], edx
jmp 0x49d3ff
test cl, 8
je 0x49d3f3
test ecx, 0x70000
jne 0x49d3e1
mov dword [ebp - 8], 0x40000000
jmp 0x49d3ff
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x49d440
sub eax, ecx
je 0x49d437
sub eax, ecx
je 0x49d42e
sub eax, ecx
je 0x49d425
sub eax, 0x40
jne 0x49d3bb
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x49d443
mov dword [ebp - 0x10], 3
jmp 0x49d443
mov dword [ebp - 0x10], 2
jmp 0x49d443
mov dword [ebp - 0x10], 1
jmp 0x49d443
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 0x49d496
je 0x49d48d
cmp eax, ebx
je 0x49d48d
cmp eax, edi
je 0x49d484
cmp eax, 0x200
je 0x49d509
cmp eax, 0x300
jne 0x49d3bb
mov dword [ebp - 0x14], 2
jmp 0x49d4b3
mov dword [ebp - 0x14], 4
jmp 0x49d4b3
mov dword [ebp - 0x14], 3
jmp 0x49d4b3
cmp eax, 0x500
je 0x49d4ac
cmp eax, 0x600
je 0x49d509
cmp eax, edx
jne 0x49d3bb
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x49d4d7
mov ecx, dword [0x4cea30]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x49d4d7
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x49d4f3
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x49d4f3
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x49d4fc
or dword [ebp - 0xc], edi
test al, 0x20
je 0x49d512
or dword [ebp - 0xc], 0x8000000
jmp 0x49d51d
mov dword [ebp - 0x14], 5
jmp 0x49d4b3
test al, 0x10
je 0x49d51d
or dword [ebp - 0xc], 0x10000000
call fcn.0049cee2
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x49d543
call fcn.0048301d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0048300a
mov dword [eax], 0x18
jmp 0x49d5d1
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 0x49d5dd
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x49d5a9
test byte [ebp + 0x10], 1
je 0x49d5a9
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 0x49d5dd
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4cf320]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00483030
pop ecx
call fcn.0048300a
mov eax, dword [eax]
jmp 0x49da6a
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x49d62e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4cf320]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00483030
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x49d5d1
call fcn.0048300a
mov dword [eax], 0xd
jmp 0x49d5d1
cmp eax, 2
jne 0x49d639
or byte [ebp - 1], 0x40
jmp 0x49d642
cmp eax, 3
jne 0x49d642
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0049ccb1
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4cf320]
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 + 0x4cf320]
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 0x49d717
test cl, 0x80
je 0x49d7e7
test byte [ebp + 0x10], 2
je 0x49d717
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0048ae67
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x49d6d6
call fcn.0048301d
cmp dword [eax], 0x83
je 0x49d717
push dword [esi]
call fcn.00489ec8
jmp 0x49d5d0
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0048a51d
add esp, 0xc
test eax, eax
jne 0x49d707
cmp byte [ebp - 4], 0x1a
jne 0x49d707
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004a2289
add esp, 0xc
cmp eax, edi
je 0x49d6ca
push ebx
push ebx
push dword [esi]
call fcn.0048ae67
add esp, 0xc
cmp eax, edi
je 0x49d6ca
test byte [ebp - 1], 0x80
je 0x49d7e7
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x49d73f
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x49d73c
or dword [ebp + 0x10], edi
jmp 0x49d73f
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x49d78c
cmp eax, 0x10000
je 0x49d778
cmp eax, 0x14000
je 0x49d778
cmp eax, 0x20000
je 0x49d786
cmp eax, 0x24000
je 0x49d786
cmp eax, 0x40000
je 0x49d772
cmp eax, 0x44000
jne 0x49d78f
mov byte [ebp - 2], 1
jmp 0x49d78f
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x49d78f
mov byte [ebp - 2], 2
jmp 0x49d78f
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x49d7e7
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x49d7e7
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x49d941
cmp eax, 0x80000000
je 0x49d908
cmp eax, ecx
jne 0x49d7e7
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x49d7e7
cmp eax, 2
jbe 0x49d9e9
cmp eax, 4
jbe 0x49d8da
cmp eax, 5
je 0x49d9e9
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4cf320]
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 + 0x4cf320]
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 0x49d859
test byte [ebp + 0x10], 8
je 0x49d859
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4cf320]
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 0x49da68
test byte [ebp + 0x10], 1
je 0x49da68
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 0x49da51
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00483030
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4cf320]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0049cd2e
pop ecx
jmp 0x49d5d0
push 2
push ebx
push ebx
push dword [esi]
call fcn.00495865
add esp, 0x10
or eax, edx
je 0x49d9e9
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00495865
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x49d6ca
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0048a51d
add esp, 0xc
cmp eax, 0xffffffff
je 0x49d6ca
cmp eax, 2
je 0x49d98d
cmp eax, 3
jne 0x49d9db
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x49d98d
mov byte [ebp - 2], 1
jmp 0x49d7e7
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x49d7e7
cmp eax, 2
jbe 0x49d9e9
cmp eax, 4
ja 0x49d7de
push 2
push ebx
push ebx
push dword [esi]
call fcn.00495865
add esp, 0x10
or eax, edx
je 0x49d9e9
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00495865
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x49d7e7
jmp 0x49d6ca
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x49d9b5
push dword [esi]
call fcn.00489ec8
pop ecx
call fcn.0048300a
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x49da6a
cmp eax, 0xfeff
jne 0x49d9db
push ebx
push 2
push dword [esi]
call fcn.0048ae67
add esp, 0xc
cmp eax, 0xffffffff
je 0x49d6ca
mov byte [ebp - 2], 2
jmp 0x49d7e7
push ebx
push ebx
push dword [esi]
call fcn.0048ae67
add esp, 0xc
jmp 0x49d97f
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x49da09
dec eax
jne 0x49d7e7
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x49da17
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.00495fc7
add esp, 0xc
cmp eax, 0xffffffff
je 0x49da3d
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x49da17
jmp 0x49d7e7
push dword [esi]
call fcn.00489ec8
pop ecx
call fcn.0048300a
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x49da6a
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4cf320]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret