Function at 0x484fbb
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 0x484fea
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x484ff4
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00491af6
test eax, eax
pop ecx
je 0x48500f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004899a5
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00484894
test eax, eax
pop ecx
je 0x48502a
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004899a5
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x485047
test ecx, 0x74000
jne 0x485043
cmp dword [ebp - 0x24], eax
je 0x485047
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x4850a1
dec eax
je 0x48508b
dec eax
je 0x485086
call fcn.00489b13
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00489b00
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00489aa1
add esp, 0x14
jmp 0x485653
mov dword [ebp - 8], edx
jmp 0x4850a4
test cl, 8
je 0x485098
test ecx, 0x70000
jne 0x485086
mov dword [ebp - 8], 0x40000000
jmp 0x4850a4
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4850e5
sub eax, ecx
je 0x4850dc
sub eax, ecx
je 0x4850d3
sub eax, ecx
je 0x4850ca
sub eax, 0x40
jne 0x485060
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4850e8
mov dword [ebp - 0x10], 3
jmp 0x4850e8
mov dword [ebp - 0x10], 2
jmp 0x4850e8
mov dword [ebp - 0x10], 1
jmp 0x4850e8
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 0x48513b
je 0x485132
cmp eax, ebx
je 0x485132
cmp eax, edi
je 0x485129
cmp eax, 0x200
je 0x4851ae
cmp eax, 0x300
jne 0x485060
mov dword [ebp - 0x14], 2
jmp 0x485158
mov dword [ebp - 0x14], 4
jmp 0x485158
mov dword [ebp - 0x14], 3
jmp 0x485158
cmp eax, 0x500
je 0x485151
cmp eax, 0x600
je 0x4851ae
cmp eax, edx
jne 0x485060
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x48517c
mov ecx, dword [0x4f2984]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x48517c
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x485198
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x485198
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4851a1
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4851b7
or dword [ebp - 0xc], 0x8000000
jmp 0x4851c2
mov dword [ebp - 0x14], 5
jmp 0x485158
test al, 0x10
je 0x4851c2
or dword [ebp - 0xc], 0x10000000
call fcn.00485f84
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4851e8
call fcn.00489b13
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00489b00
mov dword [eax], 0x18
jmp 0x485276
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 0x485282
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x48524e
test byte [ebp + 0x10], 1
je 0x48524e
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 0x485282
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x519a60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00489b26
pop ecx
call fcn.00489b00
mov eax, dword [eax]
jmp 0x48570f
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4852d3
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x519a60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00489b26
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x485276
call fcn.00489b00
mov dword [eax], 0xd
jmp 0x485276
cmp eax, 2
jne 0x4852de
or byte [ebp - 1], 0x40
jmp 0x4852e7
cmp eax, 3
jne 0x4852e7
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00485d53
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x519a60]
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 + 0x519a60]
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 0x4853bc
test cl, 0x80
je 0x48548c
test byte [ebp + 0x10], 2
je 0x4853bc
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0048e00e
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x48537b
call fcn.00489b13
cmp dword [eax], 0x83
je 0x4853bc
push dword [esi]
call fcn.0048980e
jmp 0x485275
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0048d775
add esp, 0xc
test eax, eax
jne 0x4853ac
cmp byte [ebp - 4], 0x1a
jne 0x4853ac
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00491886
add esp, 0xc
cmp eax, edi
je 0x48536f
push ebx
push ebx
push dword [esi]
call fcn.0048e00e
add esp, 0xc
cmp eax, edi
je 0x48536f
test byte [ebp - 1], 0x80
je 0x48548c
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4853e4
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4853e1
or dword [ebp + 0x10], edi
jmp 0x4853e4
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x485431
cmp eax, 0x10000
je 0x48541d
cmp eax, 0x14000
je 0x48541d
cmp eax, 0x20000
je 0x48542b
cmp eax, 0x24000
je 0x48542b
cmp eax, 0x40000
je 0x485417
cmp eax, 0x44000
jne 0x485434
mov byte [ebp - 2], 1
jmp 0x485434
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x485434
mov byte [ebp - 2], 2
jmp 0x485434
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x48548c
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x48548c
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4855e6
cmp eax, 0x80000000
je 0x4855ad
cmp eax, ecx
jne 0x48548c
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x48548c
cmp eax, 2
jbe 0x48568e
cmp eax, 4
jbe 0x48557f
cmp eax, 5
je 0x48568e
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x519a60]
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 + 0x519a60]
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 0x4854fe
test byte [ebp + 0x10], 8
je 0x4854fe
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x519a60]
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 0x48570d
test byte [ebp + 0x10], 1
je 0x48570d
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 0x4856f6
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00489b26
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x519a60]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00485dd0
pop ecx
jmp 0x485275
push 2
push ebx
push ebx
push dword [esi]
call fcn.004916ea
add esp, 0x10
or eax, edx
je 0x48568e
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004916ea
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x48536f
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0048d775
add esp, 0xc
cmp eax, 0xffffffff
je 0x48536f
cmp eax, 2
je 0x485632
cmp eax, 3
jne 0x485680
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x485632
mov byte [ebp - 2], 1
jmp 0x48548c
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x48548c
cmp eax, 2
jbe 0x48568e
cmp eax, 4
ja 0x485483
push 2
push ebx
push ebx
push dword [esi]
call fcn.004916ea
add esp, 0x10
or eax, edx
je 0x48568e
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004916ea
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x48548c
jmp 0x48536f
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x48565a
push dword [esi]
call fcn.0048980e
pop ecx
call fcn.00489b00
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x48570f
cmp eax, 0xfeff
jne 0x485680
push ebx
push 2
push dword [esi]
call fcn.0048e00e
add esp, 0xc
cmp eax, 0xffffffff
je 0x48536f
mov byte [ebp - 2], 2
jmp 0x48548c
push ebx
push ebx
push dword [esi]
call fcn.0048e00e
add esp, 0xc
jmp 0x485624
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4856ae
dec eax
jne 0x48548c
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4856bc
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.00489195
add esp, 0xc
cmp eax, 0xffffffff
je 0x4856e2
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4856bc
jmp 0x48548c
push dword [esi]
call fcn.0048980e
pop ecx
call fcn.00489b00
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x48570f
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x519a60]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret