Function at 0x4a1e1b
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 0x4a1e4a
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4a1e54
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0049ce55
test eax, eax
pop ecx
je 0x4a1e6f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048b0ee
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0048fcb4
test eax, eax
pop ecx
je 0x4a1e8a
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048b0ee
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4a1ea7
test ecx, 0x74000
jne 0x4a1ea3
cmp dword [ebp - 0x24], eax
je 0x4a1ea7
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x4a1f01
dec eax
je 0x4a1eeb
dec eax
je 0x4a1ee6
call fcn.004911a3
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00491190
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0048b1ea
add esp, 0x14
jmp 0x4a24b4
mov dword [ebp - 8], edx
jmp 0x4a1f04
test cl, 8
je 0x4a1ef8
test ecx, 0x70000
jne 0x4a1ee6
mov dword [ebp - 8], 0x40000000
jmp 0x4a1f04
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4a1f45
sub eax, ecx
je 0x4a1f3c
sub eax, ecx
je 0x4a1f33
sub eax, ecx
je 0x4a1f2a
sub eax, 0x40
jne 0x4a1ec0
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4a1f48
mov dword [ebp - 0x10], 3
jmp 0x4a1f48
mov dword [ebp - 0x10], 2
jmp 0x4a1f48
mov dword [ebp - 0x10], 1
jmp 0x4a1f48
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 0x4a1f9b
je 0x4a1f92
cmp eax, ebx
je 0x4a1f92
cmp eax, edi
je 0x4a1f89
cmp eax, 0x200
je 0x4a200e
cmp eax, 0x300
jne 0x4a1ec0
mov dword [ebp - 0x14], 2
jmp 0x4a1fb8
mov dword [ebp - 0x14], 4
jmp 0x4a1fb8
mov dword [ebp - 0x14], 3
jmp 0x4a1fb8
cmp eax, 0x500
je 0x4a1fb1
cmp eax, 0x600
je 0x4a200e
cmp eax, edx
jne 0x4a1ec0
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4a1fdc
mov ecx, dword [0x4d80d0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4a1fdc
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4a1ff8
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4a1ff8
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4a2001
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4a2017
or dword [ebp - 0xc], 0x8000000
jmp 0x4a2022
mov dword [ebp - 0x14], 5
jmp 0x4a1fb8
test al, 0x10
je 0x4a2022
or dword [ebp - 0xc], 0x10000000
call fcn.0048dd2b
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4a2048
call fcn.004911a3
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00491190
mov dword [eax], 0x18
jmp 0x4a20d6
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 0x4a20e2
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4a20ae
test byte [ebp + 0x10], 1
je 0x4a20ae
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 0x4a20e2
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.004911b6
pop ecx
call fcn.00491190
mov eax, dword [eax]
jmp 0x4a2570
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4a2133
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.004911b6
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4a20d6
call fcn.00491190
mov dword [eax], 0xd
jmp 0x4a20d6
cmp eax, 2
jne 0x4a213e
or byte [ebp - 1], 0x40
jmp 0x4a2147
cmp eax, 3
jne 0x4a2147
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0048dafa
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 0x4a221d
test cl, 0x80
je 0x4a22ed
test byte [ebp + 0x10], 2
je 0x4a221d
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00496600
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4a21db
call fcn.004911a3
cmp dword [eax], 0x83
je 0x4a221d
push dword [esi]
call fcn.004961df
jmp 0x4a20d5
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004975c9
add esp, 0xc
test eax, eax
jne 0x4a220d
cmp word [ebp - 0x2c], 0x1a
jne 0x4a220d
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0048d946
add esp, 0xc
cmp eax, edi
je 0x4a21cf
push ebx
push ebx
push dword [esi]
call fcn.00496600
add esp, 0xc
cmp eax, edi
je 0x4a21cf
test byte [ebp - 1], 0x80
je 0x4a22ed
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4a2245
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4a2242
or dword [ebp + 0x10], edi
jmp 0x4a2245
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4a2292
cmp eax, 0x10000
je 0x4a227e
cmp eax, 0x14000
je 0x4a227e
cmp eax, 0x20000
je 0x4a228c
cmp eax, 0x24000
je 0x4a228c
cmp eax, 0x40000
je 0x4a2278
cmp eax, 0x44000
jne 0x4a2295
mov byte [ebp - 2], 1
jmp 0x4a2295
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4a2295
mov byte [ebp - 2], 2
jmp 0x4a2295
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4a22ed
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4a22ed
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4a2447
cmp eax, 0x80000000
je 0x4a240e
cmp eax, ecx
jne 0x4a22ed
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a22ed
cmp eax, 2
jbe 0x4a24ef
cmp eax, 4
jbe 0x4a23e0
cmp eax, 5
je 0x4a24ef
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 0x4a235f
test byte [ebp + 0x10], 8
je 0x4a235f
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 0x4a256e
test byte [ebp + 0x10], 1
je 0x4a256e
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 0x4a2557
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004911b6
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.0048db77
pop ecx
jmp 0x4a20d5
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049ce89
add esp, 0x10
or eax, edx
je 0x4a24ef
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049ce89
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4a21cf
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004975c9
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a21cf
cmp eax, 2
je 0x4a2493
cmp eax, 3
jne 0x4a24e1
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4a2493
mov byte [ebp - 2], 1
jmp 0x4a22ed
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a22ed
cmp eax, 2
jbe 0x4a24ef
cmp eax, 4
ja 0x4a22e4
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049ce89
add esp, 0x10
or eax, edx
je 0x4a24ef
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049ce89
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4a22ed
jmp 0x4a21cf
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4a24bb
push dword [esi]
call fcn.004961df
pop ecx
call fcn.00491190
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4a2570
cmp eax, 0xfeff
jne 0x4a24e1
push ebx
push 2
push dword [esi]
call fcn.00496600
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a21cf
mov byte [ebp - 2], 2
jmp 0x4a22ed
push ebx
push ebx
push dword [esi]
call fcn.00496600
add esp, 0xc
jmp 0x4a2485
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4a250f
dec eax
jne 0x4a22ed
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4a251d
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.0049cb98
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a2543
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4a251d
jmp 0x4a22ed
push dword [esi]
call fcn.004961df
pop ecx
call fcn.00491190
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4a2570
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