Function at 0x43de65
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 0x43de94
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x43de9e
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00440459
test eax, eax
pop ecx
je 0x43deb9
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0042d179
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0042fd87
test eax, eax
pop ecx
je 0x43ded4
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0042d179
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x43def1
test ecx, 0x74000
jne 0x43deed
cmp dword [ebp - 0x24], eax
je 0x43def1
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x43df4b
dec eax
je 0x43df35
dec eax
je 0x43df30
call fcn.0042fcad
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042fc9a
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0042d275
add esp, 0x14
jmp 0x43e4fd
mov dword [ebp - 8], edx
jmp 0x43df4e
test cl, 8
je 0x43df42
test ecx, 0x70000
jne 0x43df30
mov dword [ebp - 8], 0x40000000
jmp 0x43df4e
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x43df8f
sub eax, ecx
je 0x43df86
sub eax, ecx
je 0x43df7d
sub eax, ecx
je 0x43df74
sub eax, 0x40
jne 0x43df0a
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x43df92
mov dword [ebp - 0x10], 3
jmp 0x43df92
mov dword [ebp - 0x10], 2
jmp 0x43df92
mov dword [ebp - 0x10], 1
jmp 0x43df92
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 0x43dfe5
je 0x43dfdc
cmp eax, ebx
je 0x43dfdc
cmp eax, edi
je 0x43dfd3
cmp eax, 0x200
je 0x43e058
cmp eax, 0x300
jne 0x43df0a
mov dword [ebp - 0x14], 2
jmp 0x43e002
mov dword [ebp - 0x14], 4
jmp 0x43e002
mov dword [ebp - 0x14], 3
jmp 0x43e002
cmp eax, 0x500
je 0x43dffb
cmp eax, 0x600
je 0x43e058
cmp eax, edx
jne 0x43df0a
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x43e026
mov ecx, dword [0x460878]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x43e026
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x43e042
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x43e042
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x43e04b
or dword [ebp - 0xc], edi
test al, 0x20
je 0x43e061
or dword [ebp - 0xc], 0x8000000
jmp 0x43e06c
mov dword [ebp - 0x14], 5
jmp 0x43e002
test al, 0x10
je 0x43e06c
or dword [ebp - 0xc], 0x10000000
call fcn.0043d914
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x43e092
call fcn.0042fcad
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042fc9a
mov dword [eax], 0x18
jmp 0x43e120
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 0x43e12c
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x43e0f8
test byte [ebp + 0x10], 1
je 0x43e0f8
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 0x43e12c
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4613e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0042fcc0
pop ecx
call fcn.0042fc9a
mov eax, dword [eax]
jmp 0x43e5b9
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x43e17d
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4613e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0042fcc0
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x43e120
call fcn.0042fc9a
mov dword [eax], 0xd
jmp 0x43e120
cmp eax, 2
jne 0x43e188
or byte [ebp - 1], 0x40
jmp 0x43e191
cmp eax, 3
jne 0x43e191
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0043d6e3
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4613e0]
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 + 0x4613e0]
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 0x43e266
test cl, 0x80
je 0x43e336
test byte [ebp + 0x10], 2
je 0x43e266
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00439b5d
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x43e225
call fcn.0042fcad
cmp dword [eax], 0x83
je 0x43e266
push dword [esi]
call fcn.00434b80
jmp 0x43e11f
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0043929a
add esp, 0xc
test eax, eax
jne 0x43e256
cmp byte [ebp - 4], 0x1a
jne 0x43e256
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004401e9
add esp, 0xc
cmp eax, edi
je 0x43e219
push ebx
push ebx
push dword [esi]
call fcn.00439b5d
add esp, 0xc
cmp eax, edi
je 0x43e219
test byte [ebp - 1], 0x80
je 0x43e336
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x43e28e
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x43e28b
or dword [ebp + 0x10], edi
jmp 0x43e28e
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x43e2db
cmp eax, 0x10000
je 0x43e2c7
cmp eax, 0x14000
je 0x43e2c7
cmp eax, 0x20000
je 0x43e2d5
cmp eax, 0x24000
je 0x43e2d5
cmp eax, 0x40000
je 0x43e2c1
cmp eax, 0x44000
jne 0x43e2de
mov byte [ebp - 2], 1
jmp 0x43e2de
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x43e2de
mov byte [ebp - 2], 2
jmp 0x43e2de
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x43e336
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x43e336
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x43e490
cmp eax, 0x80000000
je 0x43e457
cmp eax, ecx
jne 0x43e336
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x43e336
cmp eax, 2
jbe 0x43e538
cmp eax, 4
jbe 0x43e429
cmp eax, 5
je 0x43e538
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4613e0]
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 + 0x4613e0]
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 0x43e3a8
test byte [ebp + 0x10], 8
je 0x43e3a8
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4613e0]
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 0x43e5b7
test byte [ebp + 0x10], 1
je 0x43e5b7
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 0x43e5a0
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0042fcc0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4613e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0043d760
pop ecx
jmp 0x43e11f
push 2
push ebx
push ebx
push dword [esi]
call fcn.0043e8d5
add esp, 0x10
or eax, edx
je 0x43e538
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0043e8d5
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x43e219
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0043929a
add esp, 0xc
cmp eax, 0xffffffff
je 0x43e219
cmp eax, 2
je 0x43e4dc
cmp eax, 3
jne 0x43e52a
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x43e4dc
mov byte [ebp - 2], 1
jmp 0x43e336
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x43e336
cmp eax, 2
jbe 0x43e538
cmp eax, 4
ja 0x43e32d
push 2
push ebx
push ebx
push dword [esi]
call fcn.0043e8d5
add esp, 0x10
or eax, edx
je 0x43e538
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0043e8d5
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x43e336
jmp 0x43e219
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x43e504
push dword [esi]
call fcn.00434b80
pop ecx
call fcn.0042fc9a
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x43e5b9
cmp eax, 0xfeff
jne 0x43e52a
push ebx
push 2
push dword [esi]
call fcn.00439b5d
add esp, 0xc
cmp eax, 0xffffffff
je 0x43e219
mov byte [ebp - 2], 2
jmp 0x43e336
push ebx
push ebx
push dword [esi]
call fcn.00439b5d
add esp, 0xc
jmp 0x43e4ce
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x43e558
dec eax
jne 0x43e336
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x43e566
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.00438343
add esp, 0xc
cmp eax, 0xffffffff
je 0x43e58c
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x43e566
jmp 0x43e336
push dword [esi]
call fcn.00434b80
pop ecx
call fcn.0042fc9a
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x43e5b9
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4613e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret