Function at 0x496eac
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 0x496edb
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x496ee5
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0049a1c6
test eax, eax
pop ecx
je 0x496f00
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0047883e
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00479ead
test eax, eax
pop ecx
je 0x496f1b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0047883e
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x496f38
test ecx, 0x74000
jne 0x496f34
cmp dword [ebp - 0x24], eax
je 0x496f38
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x496f92
dec eax
je 0x496f7c
dec eax
je 0x496f77
call fcn.0047f6db
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0047f6c8
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0047893a
add esp, 0x14
jmp 0x497544
mov dword [ebp - 8], edx
jmp 0x496f95
test cl, 8
je 0x496f89
test ecx, 0x70000
jne 0x496f77
mov dword [ebp - 8], 0x40000000
jmp 0x496f95
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x496fd6
sub eax, ecx
je 0x496fcd
sub eax, ecx
je 0x496fc4
sub eax, ecx
je 0x496fbb
sub eax, 0x40
jne 0x496f51
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x496fd9
mov dword [ebp - 0x10], 3
jmp 0x496fd9
mov dword [ebp - 0x10], 2
jmp 0x496fd9
mov dword [ebp - 0x10], 1
jmp 0x496fd9
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 0x49702c
je 0x497023
cmp eax, ebx
je 0x497023
cmp eax, edi
je 0x49701a
cmp eax, 0x200
je 0x49709f
cmp eax, 0x300
jne 0x496f51
mov dword [ebp - 0x14], 2
jmp 0x497049
mov dword [ebp - 0x14], 4
jmp 0x497049
mov dword [ebp - 0x14], 3
jmp 0x497049
cmp eax, 0x500
je 0x497042
cmp eax, 0x600
je 0x49709f
cmp eax, edx
jne 0x496f51
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x49706d
mov ecx, dword [0x4f1a9c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x49706d
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x497089
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x497089
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x497092
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4970a8
or dword [ebp - 0xc], 0x8000000
jmp 0x4970b3
mov dword [ebp - 0x14], 5
jmp 0x497049
test al, 0x10
je 0x4970b3
or dword [ebp - 0xc], 0x10000000
call fcn.00480a2e
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4970d9
call fcn.0047f6db
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0047f6c8
mov dword [eax], 0x18
jmp 0x497167
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 0x497173
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x49713f
test byte [ebp + 0x10], 1
je 0x49713f
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 0x497173
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x503020]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047f6ee
pop ecx
call fcn.0047f6c8
mov eax, dword [eax]
jmp 0x497600
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4971c4
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x503020]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0047f6ee
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x497167
call fcn.0047f6c8
mov dword [eax], 0xd
jmp 0x497167
cmp eax, 2
jne 0x4971cf
or byte [ebp - 1], 0x40
jmp 0x4971d8
cmp eax, 3
jne 0x4971d8
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004807fd
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x503020]
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 + 0x503020]
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 0x4972ad
test cl, 0x80
je 0x49737d
test byte [ebp + 0x10], 2
je 0x4972ad
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004875e9
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x49726c
call fcn.0047f6db
cmp dword [eax], 0x83
je 0x4972ad
push dword [esi]
call fcn.004864d6
jmp 0x497166
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00489062
add esp, 0xc
test eax, eax
jne 0x49729d
cmp byte [ebp - 4], 0x1a
jne 0x49729d
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00499f56
add esp, 0xc
cmp eax, edi
je 0x497260
push ebx
push ebx
push dword [esi]
call fcn.004875e9
add esp, 0xc
cmp eax, edi
je 0x497260
test byte [ebp - 1], 0x80
je 0x49737d
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4972d5
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4972d2
or dword [ebp + 0x10], edi
jmp 0x4972d5
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x497322
cmp eax, 0x10000
je 0x49730e
cmp eax, 0x14000
je 0x49730e
cmp eax, 0x20000
je 0x49731c
cmp eax, 0x24000
je 0x49731c
cmp eax, 0x40000
je 0x497308
cmp eax, 0x44000
jne 0x497325
mov byte [ebp - 2], 1
jmp 0x497325
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x497325
mov byte [ebp - 2], 2
jmp 0x497325
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x49737d
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x49737d
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4974d7
cmp eax, 0x80000000
je 0x49749e
cmp eax, ecx
jne 0x49737d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x49737d
cmp eax, 2
jbe 0x49757f
cmp eax, 4
jbe 0x497470
cmp eax, 5
je 0x49757f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x503020]
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 + 0x503020]
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 0x4973ef
test byte [ebp + 0x10], 8
je 0x4973ef
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x503020]
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 0x4975fe
test byte [ebp + 0x10], 1
je 0x4975fe
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 0x4975e7
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047f6ee
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x503020]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0048087a
pop ecx
jmp 0x497166
push 2
push ebx
push ebx
push dword [esi]
call fcn.0048ec46
add esp, 0x10
or eax, edx
je 0x49757f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0048ec46
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x497260
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00489062
add esp, 0xc
cmp eax, 0xffffffff
je 0x497260
cmp eax, 2
je 0x497523
cmp eax, 3
jne 0x497571
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x497523
mov byte [ebp - 2], 1
jmp 0x49737d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x49737d
cmp eax, 2
jbe 0x49757f
cmp eax, 4
ja 0x497374
push 2
push ebx
push ebx
push dword [esi]
call fcn.0048ec46
add esp, 0x10
or eax, edx
je 0x49757f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0048ec46
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x49737d
jmp 0x497260
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x49754b
push dword [esi]
call fcn.004864d6
pop ecx
call fcn.0047f6c8
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x497600
cmp eax, 0xfeff
jne 0x497571
push ebx
push 2
push dword [esi]
call fcn.004875e9
add esp, 0xc
cmp eax, 0xffffffff
je 0x497260
mov byte [ebp - 2], 2
jmp 0x49737d
push ebx
push ebx
push dword [esi]
call fcn.004875e9
add esp, 0xc
jmp 0x497515
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x49759f
dec eax
jne 0x49737d
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4975ad
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.0048726c
add esp, 0xc
cmp eax, 0xffffffff
je 0x4975d3
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4975ad
jmp 0x49737d
push dword [esi]
call fcn.004864d6
pop ecx
call fcn.0047f6c8
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x497600
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x503020]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret