Function at 0x4a1ceb
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x38
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 - 0x38], 0xc
mov dword [ebp - 0x34], ebx
je 0x4a1d1a
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4a1d24
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0049cd25
test eax, eax
pop ecx
je 0x4a1d3f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048afbe
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0048fb84
test eax, eax
pop ecx
je 0x4a1d5a
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048afbe
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4a1d77
test ecx, 0x74000
jne 0x4a1d73
cmp dword [ebp - 0x24], eax
je 0x4a1d77
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4a1dd1
dec eax
je 0x4a1dbb
dec eax
je 0x4a1db6
call fcn.00491073
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00491060
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0048b0ba
add esp, 0x14
jmp 0x4a2384
mov dword [ebp - 8], edx
jmp 0x4a1dd4
test cl, 8
je 0x4a1dc8
test ecx, 0x70000
jne 0x4a1db6
mov dword [ebp - 8], 0x40000000
jmp 0x4a1dd4
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4a1e15
sub eax, ecx
je 0x4a1e0c
sub eax, ecx
je 0x4a1e03
sub eax, ecx
je 0x4a1dfa
sub eax, 0x40
jne 0x4a1d90
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4a1e18
mov dword [ebp - 0x10], 3
jmp 0x4a1e18
mov dword [ebp - 0x10], 2
jmp 0x4a1e18
mov dword [ebp - 0x10], 1
jmp 0x4a1e18
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 0x4a1e6b
je 0x4a1e62
cmp eax, ebx
je 0x4a1e62
cmp eax, edi
je 0x4a1e59
cmp eax, 0x200
je 0x4a1ede
cmp eax, 0x300
jne 0x4a1d90
mov dword [ebp - 0x14], 2
jmp 0x4a1e88
mov dword [ebp - 0x14], 4
jmp 0x4a1e88
mov dword [ebp - 0x14], 3
jmp 0x4a1e88
cmp eax, 0x500
je 0x4a1e81
cmp eax, 0x600
je 0x4a1ede
cmp eax, edx
jne 0x4a1d90
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4a1eac
mov ecx, dword [0x4d80d0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4a1eac
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4a1ec8
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4a1ec8
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4a1ed1
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4a1ee7
or dword [ebp - 0xc], 0x8000000
jmp 0x4a1ef2
mov dword [ebp - 0x14], 5
jmp 0x4a1e88
test al, 0x10
je 0x4a1ef2
or dword [ebp - 0xc], 0x10000000
call fcn.0048dbfb
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4a1f18
call fcn.00491073
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00491060
mov dword [eax], 0x18
jmp 0x4a1fa6
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileW]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x38]
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 0x4a1fb2
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4a1f7e
test byte [ebp + 0x10], 1
je 0x4a1f7e
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
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 0x4a1fb2
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4d9300]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00491086
pop ecx
call fcn.00491060
mov eax, dword [eax]
jmp 0x4a2440
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4a2003
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4d9300]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00491086
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4a1fa6
call fcn.00491060
mov dword [eax], 0xd
jmp 0x4a1fa6
cmp eax, 2
jne 0x4a200e
or byte [ebp - 1], 0x40
jmp 0x4a2017
cmp eax, 3
jne 0x4a2017
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0048d9ca
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4d9300]
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 + 0x4d9300]
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 0x4a20ed
test cl, 0x80
je 0x4a21bd
test byte [ebp + 0x10], 2
je 0x4a20ed
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004964d0
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4a20ab
call fcn.00491073
cmp dword [eax], 0x83
je 0x4a20ed
push dword [esi]
call fcn.004960af
jmp 0x4a1fa5
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00497499
add esp, 0xc
test eax, eax
jne 0x4a20dd
cmp word [ebp - 0x2c], 0x1a
jne 0x4a20dd
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0048d816
add esp, 0xc
cmp eax, edi
je 0x4a209f
push ebx
push ebx
push dword [esi]
call fcn.004964d0
add esp, 0xc
cmp eax, edi
je 0x4a209f
test byte [ebp - 1], 0x80
je 0x4a21bd
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4a2115
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4a2112
or dword [ebp + 0x10], edi
jmp 0x4a2115
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4a2162
cmp eax, 0x10000
je 0x4a214e
cmp eax, 0x14000
je 0x4a214e
cmp eax, 0x20000
je 0x4a215c
cmp eax, 0x24000
je 0x4a215c
cmp eax, 0x40000
je 0x4a2148
cmp eax, 0x44000
jne 0x4a2165
mov byte [ebp - 2], 1
jmp 0x4a2165
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4a2165
mov byte [ebp - 2], 2
jmp 0x4a2165
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4a21bd
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4a21bd
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4a2317
cmp eax, 0x80000000
je 0x4a22de
cmp eax, ecx
jne 0x4a21bd
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a21bd
cmp eax, 2
jbe 0x4a23bf
cmp eax, 4
jbe 0x4a22b0
cmp eax, 5
je 0x4a23bf
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d9300]
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 + 0x4d9300]
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 0x4a222f
test byte [ebp + 0x10], 8
je 0x4a222f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d9300]
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 0x4a243e
test byte [ebp + 0x10], 1
je 0x4a243e
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileW]
cmp eax, 0xffffffff
jne 0x4a2427
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00491086
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d9300]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0048da47
pop ecx
jmp 0x4a1fa5
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049cd59
add esp, 0x10
or eax, edx
je 0x4a23bf
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049cd59
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4a209f
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00497499
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a209f
cmp eax, 2
je 0x4a2363
cmp eax, 3
jne 0x4a23b1
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4a2363
mov byte [ebp - 2], 1
jmp 0x4a21bd
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a21bd
cmp eax, 2
jbe 0x4a23bf
cmp eax, 4
ja 0x4a21b4
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049cd59
add esp, 0x10
or eax, edx
je 0x4a23bf
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049cd59
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4a21bd
jmp 0x4a209f
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4a238b
push dword [esi]
call fcn.004960af
pop ecx
call fcn.00491060
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4a2440
cmp eax, 0xfeff
jne 0x4a23b1
push ebx
push 2
push dword [esi]
call fcn.004964d0
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a209f
mov byte [ebp - 2], 2
jmp 0x4a21bd
push ebx
push ebx
push dword [esi]
call fcn.004964d0
add esp, 0xc
jmp 0x4a2355
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4a23df
dec eax
jne 0x4a21bd
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4a23ed
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.0049ca68
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a2413
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4a23ed
jmp 0x4a21bd
push dword [esi]
call fcn.004960af
pop ecx
call fcn.00491060
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4a2440
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d9300]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret