Function at 0x443d23
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 0x443d52
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x443d5c
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00445765
test eax, eax
pop ecx
je 0x443d77
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004353b3
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00435b43
test eax, eax
pop ecx
je 0x443d92
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004353b3
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x443daf
test ecx, 0x74000
jne 0x443dab
cmp dword [ebp - 0x24], eax
je 0x443daf
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x443e09
dec eax
je 0x443df3
dec eax
je 0x443dee
call fcn.00435ef9
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00435ee6
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004354af
add esp, 0x14
jmp 0x4443bb
mov dword [ebp - 8], edx
jmp 0x443e0c
test cl, 8
je 0x443e00
test ecx, 0x70000
jne 0x443dee
mov dword [ebp - 8], 0x40000000
jmp 0x443e0c
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x443e4d
sub eax, ecx
je 0x443e44
sub eax, ecx
je 0x443e3b
sub eax, ecx
je 0x443e32
sub eax, 0x40
jne 0x443dc8
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x443e50
mov dword [ebp - 0x10], 3
jmp 0x443e50
mov dword [ebp - 0x10], 2
jmp 0x443e50
mov dword [ebp - 0x10], 1
jmp 0x443e50
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 0x443ea3
je 0x443e9a
cmp eax, ebx
je 0x443e9a
cmp eax, edi
je 0x443e91
cmp eax, 0x200
je 0x443f16
cmp eax, 0x300
jne 0x443dc8
mov dword [ebp - 0x14], 2
jmp 0x443ec0
mov dword [ebp - 0x14], 4
jmp 0x443ec0
mov dword [ebp - 0x14], 3
jmp 0x443ec0
cmp eax, 0x500
je 0x443eb9
cmp eax, 0x600
je 0x443f16
cmp eax, edx
jne 0x443dc8
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x443ee4
mov ecx, dword [0x460ae8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x443ee4
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x443f00
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x443f00
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x443f09
or dword [ebp - 0xc], edi
test al, 0x20
je 0x443f1f
or dword [ebp - 0xc], 0x8000000
jmp 0x443f2a
mov dword [ebp - 0x14], 5
jmp 0x443ec0
test al, 0x10
je 0x443f2a
or dword [ebp - 0xc], 0x10000000
call fcn.00443a04
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x443f50
call fcn.00435ef9
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00435ee6
mov dword [eax], 0x18
jmp 0x443fde
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 0x443fea
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x443fb6
test byte [ebp + 0x10], 1
je 0x443fb6
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 0x443fea
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x502ba0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00435f0c
pop ecx
call fcn.00435ee6
mov eax, dword [eax]
jmp 0x444477
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x44403b
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x502ba0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00435f0c
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x443fde
call fcn.00435ee6
mov dword [eax], 0xd
jmp 0x443fde
cmp eax, 2
jne 0x444046
or byte [ebp - 1], 0x40
jmp 0x44404f
cmp eax, 3
jne 0x44404f
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004437d3
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x502ba0]
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 + 0x502ba0]
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 0x444124
test cl, 0x80
je 0x4441f4
test byte [ebp + 0x10], 2
je 0x444124
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00445637
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4440e3
call fcn.00435ef9
cmp dword [eax], 0x83
je 0x444124
push dword [esi]
call fcn.0043db85
jmp 0x443fdd
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00440110
add esp, 0xc
test eax, eax
jne 0x444114
cmp byte [ebp - 4], 0x1a
jne 0x444114
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00445483
add esp, 0xc
cmp eax, edi
je 0x4440d7
push ebx
push ebx
push dword [esi]
call fcn.00445637
add esp, 0xc
cmp eax, edi
je 0x4440d7
test byte [ebp - 1], 0x80
je 0x4441f4
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x44414c
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x444149
or dword [ebp + 0x10], edi
jmp 0x44414c
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x444199
cmp eax, 0x10000
je 0x444185
cmp eax, 0x14000
je 0x444185
cmp eax, 0x20000
je 0x444193
cmp eax, 0x24000
je 0x444193
cmp eax, 0x40000
je 0x44417f
cmp eax, 0x44000
jne 0x44419c
mov byte [ebp - 2], 1
jmp 0x44419c
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x44419c
mov byte [ebp - 2], 2
jmp 0x44419c
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4441f4
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4441f4
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x44434e
cmp eax, 0x80000000
je 0x444315
cmp eax, ecx
jne 0x4441f4
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4441f4
cmp eax, 2
jbe 0x4443f6
cmp eax, 4
jbe 0x4442e7
cmp eax, 5
je 0x4443f6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x502ba0]
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 + 0x502ba0]
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 0x444266
test byte [ebp + 0x10], 8
je 0x444266
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x502ba0]
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 0x444475
test byte [ebp + 0x10], 1
je 0x444475
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 0x44445e
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00435f0c
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x502ba0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00443850
pop ecx
jmp 0x443fdd
push 2
push ebx
push ebx
push dword [esi]
call fcn.00442af5
add esp, 0x10
or eax, edx
je 0x4443f6
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00442af5
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4440d7
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00440110
add esp, 0xc
cmp eax, 0xffffffff
je 0x4440d7
cmp eax, 2
je 0x44439a
cmp eax, 3
jne 0x4443e8
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x44439a
mov byte [ebp - 2], 1
jmp 0x4441f4
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4441f4
cmp eax, 2
jbe 0x4443f6
cmp eax, 4
ja 0x4441eb
push 2
push ebx
push ebx
push dword [esi]
call fcn.00442af5
add esp, 0x10
or eax, edx
je 0x4443f6
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00442af5
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4441f4
jmp 0x4440d7
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4443c2
push dword [esi]
call fcn.0043db85
pop ecx
call fcn.00435ee6
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x444477
cmp eax, 0xfeff
jne 0x4443e8
push ebx
push 2
push dword [esi]
call fcn.00445637
add esp, 0xc
cmp eax, 0xffffffff
je 0x4440d7
mov byte [ebp - 2], 2
jmp 0x4441f4
push ebx
push ebx
push dword [esi]
call fcn.00445637
add esp, 0xc
jmp 0x44438c
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x444416
dec eax
jne 0x4441f4
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x444424
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.00443257
add esp, 0xc
cmp eax, 0xffffffff
je 0x44444a
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x444424
jmp 0x4441f4
push dword [esi]
call fcn.0043db85
pop ecx
call fcn.00435ee6
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x444477
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x502ba0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret