Function at 0x49b5d7
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 0x49b606
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x49b610
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004a06cb
test eax, eax
pop ecx
je 0x49b62b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0047b0e8
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00482b71
test eax, eax
pop ecx
je 0x49b646
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0047b0e8
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x49b663
test ecx, 0x74000
jne 0x49b65f
cmp dword [ebp - 0x24], eax
je 0x49b663
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x49b6bd
dec eax
je 0x49b6a7
dec eax
je 0x49b6a2
call fcn.0047ec4b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0047ec38
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0047b21c
add esp, 0x14
jmp 0x49bc6f
mov dword [ebp - 8], edx
jmp 0x49b6c0
test cl, 8
je 0x49b6b4
test ecx, 0x70000
jne 0x49b6a2
mov dword [ebp - 8], 0x40000000
jmp 0x49b6c0
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x49b701
sub eax, ecx
je 0x49b6f8
sub eax, ecx
je 0x49b6ef
sub eax, ecx
je 0x49b6e6
sub eax, 0x40
jne 0x49b67c
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x49b704
mov dword [ebp - 0x10], 3
jmp 0x49b704
mov dword [ebp - 0x10], 2
jmp 0x49b704
mov dword [ebp - 0x10], 1
jmp 0x49b704
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 0x49b757
je 0x49b74e
cmp eax, ebx
je 0x49b74e
cmp eax, edi
je 0x49b745
cmp eax, 0x200
je 0x49b7ca
cmp eax, 0x300
jne 0x49b67c
mov dword [ebp - 0x14], 2
jmp 0x49b774
mov dword [ebp - 0x14], 4
jmp 0x49b774
mov dword [ebp - 0x14], 3
jmp 0x49b774
cmp eax, 0x500
je 0x49b76d
cmp eax, 0x600
je 0x49b7ca
cmp eax, edx
jne 0x49b67c
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x49b798
mov ecx, dword [0x4c9984]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x49b798
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x49b7b4
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x49b7b4
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x49b7bd
or dword [ebp - 0xc], edi
test al, 0x20
je 0x49b7d3
or dword [ebp - 0xc], 0x8000000
jmp 0x49b7de
mov dword [ebp - 0x14], 5
jmp 0x49b774
test al, 0x10
je 0x49b7de
or dword [ebp - 0xc], 0x10000000
call fcn.0049b1a3
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x49b804
call fcn.0047ec4b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0047ec38
mov dword [eax], 0x18
jmp 0x49b892
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 0x49b89e
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x49b86a
test byte [ebp + 0x10], 1
je 0x49b86a
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 0x49b89e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ca2e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047ec5e
pop ecx
call fcn.0047ec38
mov eax, dword [eax]
jmp 0x49bd2b
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x49b8ef
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ca2e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0047ec5e
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x49b892
call fcn.0047ec38
mov dword [eax], 0xd
jmp 0x49b892
cmp eax, 2
jne 0x49b8fa
or byte [ebp - 1], 0x40
jmp 0x49b903
cmp eax, 3
jne 0x49b903
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0049af72
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4ca2e0]
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 + 0x4ca2e0]
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 0x49b9d8
test cl, 0x80
je 0x49baa8
test byte [ebp + 0x10], 2
je 0x49b9d8
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0048951e
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x49b997
call fcn.0047ec4b
cmp dword [eax], 0x83
je 0x49b9d8
push dword [esi]
call fcn.0048857f
jmp 0x49b891
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00488bd4
add esp, 0xc
test eax, eax
jne 0x49b9c8
cmp byte [ebp - 4], 0x1a
jne 0x49b9c8
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004a0310
add esp, 0xc
cmp eax, edi
je 0x49b98b
push ebx
push ebx
push dword [esi]
call fcn.0048951e
add esp, 0xc
cmp eax, edi
je 0x49b98b
test byte [ebp - 1], 0x80
je 0x49baa8
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x49ba00
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x49b9fd
or dword [ebp + 0x10], edi
jmp 0x49ba00
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x49ba4d
cmp eax, 0x10000
je 0x49ba39
cmp eax, 0x14000
je 0x49ba39
cmp eax, 0x20000
je 0x49ba47
cmp eax, 0x24000
je 0x49ba47
cmp eax, 0x40000
je 0x49ba33
cmp eax, 0x44000
jne 0x49ba50
mov byte [ebp - 2], 1
jmp 0x49ba50
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x49ba50
mov byte [ebp - 2], 2
jmp 0x49ba50
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x49baa8
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x49baa8
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x49bc02
cmp eax, 0x80000000
je 0x49bbc9
cmp eax, ecx
jne 0x49baa8
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x49baa8
cmp eax, 2
jbe 0x49bcaa
cmp eax, 4
jbe 0x49bb9b
cmp eax, 5
je 0x49bcaa
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ca2e0]
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 + 0x4ca2e0]
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 0x49bb1a
test byte [ebp + 0x10], 8
je 0x49bb1a
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ca2e0]
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 0x49bd29
test byte [ebp + 0x10], 1
je 0x49bd29
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 0x49bd12
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047ec5e
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ca2e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0049afef
pop ecx
jmp 0x49b891
push 2
push ebx
push ebx
push dword [esi]
call fcn.00499803
add esp, 0x10
or eax, edx
je 0x49bcaa
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00499803
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x49b98b
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00488bd4
add esp, 0xc
cmp eax, 0xffffffff
je 0x49b98b
cmp eax, 2
je 0x49bc4e
cmp eax, 3
jne 0x49bc9c
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x49bc4e
mov byte [ebp - 2], 1
jmp 0x49baa8
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x49baa8
cmp eax, 2
jbe 0x49bcaa
cmp eax, 4
ja 0x49ba9f
push 2
push ebx
push ebx
push dword [esi]
call fcn.00499803
add esp, 0x10
or eax, edx
je 0x49bcaa
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00499803
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x49baa8
jmp 0x49b98b
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x49bc76
push dword [esi]
call fcn.0048857f
pop ecx
call fcn.0047ec38
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x49bd2b
cmp eax, 0xfeff
jne 0x49bc9c
push ebx
push 2
push dword [esi]
call fcn.0048951e
add esp, 0xc
cmp eax, 0xffffffff
je 0x49b98b
mov byte [ebp - 2], 2
jmp 0x49baa8
push ebx
push ebx
push dword [esi]
call fcn.0048951e
add esp, 0xc
jmp 0x49bc40
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x49bcca
dec eax
jne 0x49baa8
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x49bcd8
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.00499f65
add esp, 0xc
cmp eax, 0xffffffff
je 0x49bcfe
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x49bcd8
jmp 0x49baa8
push dword [esi]
call fcn.0048857f
pop ecx
call fcn.0047ec38
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x49bd2b
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ca2e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret