Function at 0x43dc8e
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 0x43dcbd
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x43dcc7
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004424bf
test eax, eax
pop ecx
je 0x43dce2
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00431bd0
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004368bf
test eax, eax
pop ecx
je 0x43dcfd
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00431bd0
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x43dd1a
test ecx, 0x74000
jne 0x43dd16
cmp dword [ebp - 0x24], eax
je 0x43dd1a
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SHChangeNotifyDeregister
je 0x43dd74
dec eax
je 0x43dd5e
dec eax
je 0x43dd59
call fcn.00434237
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00434224
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00431ccc
add esp, 0x14
jmp 0x43e326
mov dword [ebp - 8], edx
jmp 0x43dd77
test cl, 8
je 0x43dd6b
test ecx, 0x70000
jne 0x43dd59
mov dword [ebp - 8], 0x40000000
jmp 0x43dd77
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x43ddb8
sub eax, ecx
je 0x43ddaf
sub eax, ecx
je 0x43dda6
sub eax, ecx
je 0x43dd9d
sub eax, 0x40
jne 0x43dd33
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x43ddbb
mov dword [ebp - 0x10], 3
jmp 0x43ddbb
mov dword [ebp - 0x10], 2
jmp 0x43ddbb
mov dword [ebp - 0x10], 1
jmp 0x43ddbb
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 0x43de0e
je 0x43de05
cmp eax, ebx
je 0x43de05
cmp eax, edi
je 0x43ddfc
cmp eax, 0x200
je 0x43de81
cmp eax, 0x300
jne 0x43dd33
mov dword [ebp - 0x14], 2
jmp 0x43de2b
mov dword [ebp - 0x14], 4
jmp 0x43de2b
mov dword [ebp - 0x14], 3
jmp 0x43de2b
cmp eax, 0x500
je 0x43de24
cmp eax, 0x600
je 0x43de81
cmp eax, edx
jne 0x43dd33
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x43de4f
mov ecx, dword [0x454cf8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x43de4f
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x43de6b
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x43de6b
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x43de74
or dword [ebp - 0xc], edi
test al, 0x20
je 0x43de8a
or dword [ebp - 0xc], 0x8000000
jmp 0x43de95
mov dword [ebp - 0x14], 5
jmp 0x43de2b
test al, 0x10
je 0x43de95
or dword [ebp - 0xc], 0x10000000
call fcn.0043d9ca
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x43debb
call fcn.00434237
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00434224
mov dword [eax], 0x18
jmp 0x43df49
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 0x43df55
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x43df21
test byte [ebp + 0x10], 1
je 0x43df21
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 0x43df55
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x455540]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0043424a
pop ecx
call fcn.00434224
mov eax, dword [eax]
jmp 0x43e3e2
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x43dfa6
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x455540]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0043424a
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x43df49
call fcn.00434224
mov dword [eax], 0xd
jmp 0x43df49
cmp eax, 2
jne 0x43dfb1
or byte [ebp - 1], 0x40
jmp 0x43dfba
cmp eax, 3
jne 0x43dfba
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0043d799
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x455540]
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 + 0x455540]
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 0x43e08f
test cl, 0x80
je 0x43e15f
test byte [ebp + 0x10], 2
je 0x43e08f
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00442391
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x43e04e
call fcn.00434237
cmp dword [eax], 0x83
je 0x43e08f
push dword [esi]
call fcn.0043965f
jmp 0x43df48
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0043a121
add esp, 0xc
test eax, eax
jne 0x43e07f
cmp byte [ebp - 4], 0x1a
jne 0x43e07f
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004421dd
add esp, 0xc
cmp eax, edi
je 0x43e042
push ebx
push ebx
push dword [esi]
call fcn.00442391
add esp, 0xc
cmp eax, edi
je 0x43e042
test byte [ebp - 1], 0x80
je 0x43e15f
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x43e0b7
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x43e0b4
or dword [ebp + 0x10], edi
jmp 0x43e0b7
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x43e104
cmp eax, 0x10000
je 0x43e0f0
cmp eax, 0x14000
je 0x43e0f0
cmp eax, 0x20000
je 0x43e0fe
cmp eax, 0x24000
je 0x43e0fe
cmp eax, 0x40000
je 0x43e0ea
cmp eax, 0x44000
jne 0x43e107
mov byte [ebp - 2], 1
jmp 0x43e107
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x43e107
mov byte [ebp - 2], 2
jmp 0x43e107
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x43e15f
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x43e15f
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x43e2b9
cmp eax, 0x80000000
je 0x43e280
cmp eax, ecx
jne 0x43e15f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x43e15f
cmp eax, 2
jbe 0x43e361
cmp eax, 4
jbe 0x43e252
cmp eax, 5
je 0x43e361
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x455540]
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 + 0x455540]
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 0x43e1d1
test byte [ebp + 0x10], 8
je 0x43e1d1
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x455540]
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 0x43e3e0
test byte [ebp + 0x10], 1
je 0x43e3e0
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 0x43e3c9
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0043424a
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x455540]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0043d816
pop ecx
jmp 0x43df48
push 2
push ebx
push ebx
push dword [esi]
call fcn.0043e87e
add esp, 0x10
or eax, edx
je 0x43e361
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0043e87e
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x43e042
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0043a121
add esp, 0xc
cmp eax, 0xffffffff
je 0x43e042
cmp eax, 2
je 0x43e305
cmp eax, 3
jne 0x43e353
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x43e305
mov byte [ebp - 2], 1
jmp 0x43e15f
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x43e15f
cmp eax, 2
jbe 0x43e361
cmp eax, 4
ja 0x43e156
push 2
push ebx
push ebx
push dword [esi]
call fcn.0043e87e
add esp, 0x10
or eax, edx
je 0x43e361
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0043e87e
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x43e15f
jmp 0x43e042
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x43e32d
push dword [esi]
call fcn.0043965f
pop ecx
call fcn.00434224
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x43e3e2
cmp eax, 0xfeff
jne 0x43e353
push ebx
push 2
push dword [esi]
call fcn.00442391
add esp, 0xc
cmp eax, 0xffffffff
je 0x43e042
mov byte [ebp - 2], 2
jmp 0x43e15f
push ebx
push ebx
push dword [esi]
call fcn.00442391
add esp, 0xc
jmp 0x43e2f7
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x43e381
dec eax
jne 0x43e15f
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x43e38f
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.0043b191
add esp, 0xc
cmp eax, 0xffffffff
je 0x43e3b5
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x43e38f
jmp 0x43e15f
push dword [esi]
call fcn.0043965f
pop ecx
call fcn.00434224
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x43e3e2
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x455540]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret