Function at 0x4a41c7
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 0x4a41f6
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4a4200
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0049de51
test eax, eax
pop ecx
je 0x4a421b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048aeae
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00490aa2
test eax, eax
pop ecx
je 0x4a4236
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048aeae
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4a4253
test ecx, 0x74000
jne 0x4a424f
cmp dword [ebp - 0x24], eax
je 0x4a4253
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4a42ad
dec eax
je 0x4a4297
dec eax
je 0x4a4292
call fcn.00491f93
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00491f80
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0048afaa
add esp, 0x14
jmp 0x4a4860
mov dword [ebp - 8], edx
jmp 0x4a42b0
test cl, 8
je 0x4a42a4
test ecx, 0x70000
jne 0x4a4292
mov dword [ebp - 8], 0x40000000
jmp 0x4a42b0
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4a42f1
sub eax, ecx
je 0x4a42e8
sub eax, ecx
je 0x4a42df
sub eax, ecx
je 0x4a42d6
sub eax, 0x40
jne 0x4a426c
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4a42f4
mov dword [ebp - 0x10], 3
jmp 0x4a42f4
mov dword [ebp - 0x10], 2
jmp 0x4a42f4
mov dword [ebp - 0x10], 1
jmp 0x4a42f4
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 0x4a4347
je 0x4a433e
cmp eax, ebx
je 0x4a433e
cmp eax, edi
je 0x4a4335
cmp eax, 0x200
je 0x4a43ba
cmp eax, 0x300
jne 0x4a426c
mov dword [ebp - 0x14], 2
jmp 0x4a4364
mov dword [ebp - 0x14], 4
jmp 0x4a4364
mov dword [ebp - 0x14], 3
jmp 0x4a4364
cmp eax, 0x500
je 0x4a435d
cmp eax, 0x600
je 0x4a43ba
cmp eax, edx
jne 0x4a426c
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4a4388
mov ecx, dword [0x4db074]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4a4388
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4a43a4
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4a43a4
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4a43ad
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4a43c3
or dword [ebp - 0xc], 0x8000000
jmp 0x4a43ce
mov dword [ebp - 0x14], 5
jmp 0x4a4364
test al, 0x10
je 0x4a43ce
or dword [ebp - 0xc], 0x10000000
call fcn.0048dbab
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4a43f4
call fcn.00491f93
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00491f80
mov dword [eax], 0x18
jmp 0x4a4482
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 0x4a448e
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4a445a
test byte [ebp + 0x10], 1
je 0x4a445a
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 0x4a448e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4dc2e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00491fa6
pop ecx
call fcn.00491f80
mov eax, dword [eax]
jmp 0x4a491c
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4a44df
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4dc2e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00491fa6
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4a4482
call fcn.00491f80
mov dword [eax], 0xd
jmp 0x4a4482
cmp eax, 2
jne 0x4a44ea
or byte [ebp - 1], 0x40
jmp 0x4a44f3
cmp eax, 3
jne 0x4a44f3
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0048d97a
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4dc2e0]
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 + 0x4dc2e0]
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 0x4a45c9
test cl, 0x80
je 0x4a4699
test byte [ebp + 0x10], 2
je 0x4a45c9
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00497648
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4a4587
call fcn.00491f93
cmp dword [eax], 0x83
je 0x4a45c9
push dword [esi]
call fcn.00497227
jmp 0x4a4481
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00498611
add esp, 0xc
test eax, eax
jne 0x4a45b9
cmp word [ebp - 0x2c], 0x1a
jne 0x4a45b9
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0048d42e
add esp, 0xc
cmp eax, edi
je 0x4a457b
push ebx
push ebx
push dword [esi]
call fcn.00497648
add esp, 0xc
cmp eax, edi
je 0x4a457b
test byte [ebp - 1], 0x80
je 0x4a4699
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4a45f1
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4a45ee
or dword [ebp + 0x10], edi
jmp 0x4a45f1
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4a463e
cmp eax, 0x10000
je 0x4a462a
cmp eax, 0x14000
je 0x4a462a
cmp eax, 0x20000
je 0x4a4638
cmp eax, 0x24000
je 0x4a4638
cmp eax, 0x40000
je 0x4a4624
cmp eax, 0x44000
jne 0x4a4641
mov byte [ebp - 2], 1
jmp 0x4a4641
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4a4641
mov byte [ebp - 2], 2
jmp 0x4a4641
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4a4699
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4a4699
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4a47f3
cmp eax, 0x80000000
je 0x4a47ba
cmp eax, ecx
jne 0x4a4699
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a4699
cmp eax, 2
jbe 0x4a489b
cmp eax, 4
jbe 0x4a478c
cmp eax, 5
je 0x4a489b
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4dc2e0]
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 + 0x4dc2e0]
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 0x4a470b
test byte [ebp + 0x10], 8
je 0x4a470b
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4dc2e0]
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 0x4a491a
test byte [ebp + 0x10], 1
je 0x4a491a
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 0x4a4903
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00491fa6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4dc2e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0048d9f7
pop ecx
jmp 0x4a4481
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049de85
add esp, 0x10
or eax, edx
je 0x4a489b
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049de85
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4a457b
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00498611
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a457b
cmp eax, 2
je 0x4a483f
cmp eax, 3
jne 0x4a488d
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4a483f
mov byte [ebp - 2], 1
jmp 0x4a4699
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a4699
cmp eax, 2
jbe 0x4a489b
cmp eax, 4
ja 0x4a4690
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049de85
add esp, 0x10
or eax, edx
je 0x4a489b
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049de85
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4a4699
jmp 0x4a457b
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4a4867
push dword [esi]
call fcn.00497227
pop ecx
call fcn.00491f80
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4a491c
cmp eax, 0xfeff
jne 0x4a488d
push ebx
push 2
push dword [esi]
call fcn.00497648
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a457b
mov byte [ebp - 2], 2
jmp 0x4a4699
push ebx
push ebx
push dword [esi]
call fcn.00497648
add esp, 0xc
jmp 0x4a4831
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4a48bb
dec eax
jne 0x4a4699
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4a48c9
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.0049dbd8
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a48ef
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4a48c9
jmp 0x4a4699
push dword [esi]
call fcn.00497227
pop ecx
call fcn.00491f80
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4a491c
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4dc2e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret