Function at 0x48b366
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 0x48b395
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x48b39f
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004902c4
test eax, eax
pop ecx
je 0x48b3ba
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0047251c
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004762b9
test eax, eax
pop ecx
je 0x48b3d5
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0047251c
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x48b3f2
test ecx, 0x74000
jne 0x48b3ee
cmp dword [ebp - 0x24], eax
je 0x48b3f2
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x48b44c
dec eax
je 0x48b436
dec eax
je 0x48b431
call fcn.00478db0
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00478d9d
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00472618
add esp, 0x14
jmp 0x48b9ff
mov dword [ebp - 8], edx
jmp 0x48b44f
test cl, 8
je 0x48b443
test ecx, 0x70000
jne 0x48b431
mov dword [ebp - 8], 0x40000000
jmp 0x48b44f
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x48b490
sub eax, ecx
je 0x48b487
sub eax, ecx
je 0x48b47e
sub eax, ecx
je 0x48b475
sub eax, 0x40
jne 0x48b40b
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x48b493
mov dword [ebp - 0x10], 3
jmp 0x48b493
mov dword [ebp - 0x10], 2
jmp 0x48b493
mov dword [ebp - 0x10], 1
jmp 0x48b493
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 0x48b4e6
je 0x48b4dd
cmp eax, ebx
je 0x48b4dd
cmp eax, edi
je 0x48b4d4
cmp eax, 0x200
je 0x48b559
cmp eax, 0x300
jne 0x48b40b
mov dword [ebp - 0x14], 2
jmp 0x48b503
mov dword [ebp - 0x14], 4
jmp 0x48b503
mov dword [ebp - 0x14], 3
jmp 0x48b503
cmp eax, 0x500
je 0x48b4fc
cmp eax, 0x600
je 0x48b559
cmp eax, edx
jne 0x48b40b
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x48b527
mov ecx, dword [0x4c4d98]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x48b527
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x48b543
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x48b543
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x48b54c
or dword [ebp - 0xc], edi
test al, 0x20
je 0x48b562
or dword [ebp - 0xc], 0x8000000
jmp 0x48b56d
mov dword [ebp - 0x14], 5
jmp 0x48b503
test al, 0x10
je 0x48b56d
or dword [ebp - 0xc], 0x10000000
call fcn.0048bddb
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x48b593
call fcn.00478db0
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00478d9d
mov dword [eax], 0x18
jmp 0x48b621
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 0x48b62d
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x48b5f9
test byte [ebp + 0x10], 1
je 0x48b5f9
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 0x48b62d
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4d5f80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00478dc3
pop ecx
call fcn.00478d9d
mov eax, dword [eax]
jmp 0x48babb
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x48b67e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4d5f80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00478dc3
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x48b621
call fcn.00478d9d
mov dword [eax], 0xd
jmp 0x48b621
cmp eax, 2
jne 0x48b689
or byte [ebp - 1], 0x40
jmp 0x48b692
cmp eax, 3
jne 0x48b692
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0048bbaa
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4d5f80]
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 + 0x4d5f80]
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 0x48b768
test cl, 0x80
je 0x48b838
test byte [ebp + 0x10], 2
je 0x48b768
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0047e4b7
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x48b726
call fcn.00478db0
cmp dword [eax], 0x83
je 0x48b768
push dword [esi]
call fcn.0047f24e
jmp 0x48b620
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00483de2
add esp, 0xc
test eax, eax
jne 0x48b758
cmp word [ebp - 0x2c], 0x1a
jne 0x48b758
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00490054
add esp, 0xc
cmp eax, edi
je 0x48b71a
push ebx
push ebx
push dword [esi]
call fcn.0047e4b7
add esp, 0xc
cmp eax, edi
je 0x48b71a
test byte [ebp - 1], 0x80
je 0x48b838
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x48b790
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x48b78d
or dword [ebp + 0x10], edi
jmp 0x48b790
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x48b7dd
cmp eax, 0x10000
je 0x48b7c9
cmp eax, 0x14000
je 0x48b7c9
cmp eax, 0x20000
je 0x48b7d7
cmp eax, 0x24000
je 0x48b7d7
cmp eax, 0x40000
je 0x48b7c3
cmp eax, 0x44000
jne 0x48b7e0
mov byte [ebp - 2], 1
jmp 0x48b7e0
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x48b7e0
mov byte [ebp - 2], 2
jmp 0x48b7e0
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x48b838
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x48b838
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x48b992
cmp eax, 0x80000000
je 0x48b959
cmp eax, ecx
jne 0x48b838
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x48b838
cmp eax, 2
jbe 0x48ba3a
cmp eax, 4
jbe 0x48b92b
cmp eax, 5
je 0x48ba3a
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d5f80]
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 + 0x4d5f80]
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 0x48b8aa
test byte [ebp + 0x10], 8
je 0x48b8aa
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d5f80]
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 0x48bab9
test byte [ebp + 0x10], 1
je 0x48bab9
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 0x48baa2
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00478dc3
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d5f80]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0048bc27
pop ecx
jmp 0x48b620
push 2
push ebx
push ebx
push dword [esi]
call fcn.00489c7a
add esp, 0x10
or eax, edx
je 0x48ba3a
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00489c7a
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x48b71a
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00483de2
add esp, 0xc
cmp eax, 0xffffffff
je 0x48b71a
cmp eax, 2
je 0x48b9de
cmp eax, 3
jne 0x48ba2c
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x48b9de
mov byte [ebp - 2], 1
jmp 0x48b838
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x48b838
cmp eax, 2
jbe 0x48ba3a
cmp eax, 4
ja 0x48b82f
push 2
push ebx
push ebx
push dword [esi]
call fcn.00489c7a
add esp, 0x10
or eax, edx
je 0x48ba3a
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00489c7a
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x48b838
jmp 0x48b71a
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x48ba06
push dword [esi]
call fcn.0047f24e
pop ecx
call fcn.00478d9d
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x48babb
cmp eax, 0xfeff
jne 0x48ba2c
push ebx
push 2
push dword [esi]
call fcn.0047e4b7
add esp, 0xc
cmp eax, 0xffffffff
je 0x48b71a
mov byte [ebp - 2], 2
jmp 0x48b838
push ebx
push ebx
push dword [esi]
call fcn.0047e4b7
add esp, 0xc
jmp 0x48b9d0
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x48ba5a
dec eax
jne 0x48b838
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x48ba68
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.00484a66
add esp, 0xc
cmp eax, 0xffffffff
je 0x48ba8e
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x48ba68
jmp 0x48b838
push dword [esi]
call fcn.0047f24e
pop ecx
call fcn.00478d9d
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x48babb
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4d5f80]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret