Function at 0x4ffab3
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 0x4ffae2
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4ffaec
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.005084c1
test eax, eax
pop ecx
je 0x4ffb07
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004e8c0d
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004eb14f
test eax, eax
pop ecx
je 0x4ffb22
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004e8c0d
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4ffb3f
test ecx, 0x74000
jne 0x4ffb3b
cmp dword [ebp - 0x24], eax
je 0x4ffb3f
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, bind
je 0x4ffb99
dec eax
je 0x4ffb83
dec eax
je 0x4ffb7e
call fcn.004ec413
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004ec400
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004e8d41
add esp, 0x14
jmp 0x50014b
mov dword [ebp - 8], edx
jmp 0x4ffb9c
test cl, 8
je 0x4ffb90
test ecx, 0x70000
jne 0x4ffb7e
mov dword [ebp - 8], 0x40000000
jmp 0x4ffb9c
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4ffbdd
sub eax, ecx
je 0x4ffbd4
sub eax, ecx
je 0x4ffbcb
sub eax, ecx
je 0x4ffbc2
sub eax, 0x40
jne 0x4ffb58
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4ffbe0
mov dword [ebp - 0x10], 3
jmp 0x4ffbe0
mov dword [ebp - 0x10], 2
jmp 0x4ffbe0
mov dword [ebp - 0x10], 1
jmp 0x4ffbe0
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 0x4ffc33
je 0x4ffc2a
cmp eax, ebx
je 0x4ffc2a
cmp eax, edi
je 0x4ffc21
cmp eax, 0x200
je 0x4ffca6
cmp eax, 0x300
jne 0x4ffb58
mov dword [ebp - 0x14], 2
jmp 0x4ffc50
mov dword [ebp - 0x14], 4
jmp 0x4ffc50
mov dword [ebp - 0x14], 3
jmp 0x4ffc50
cmp eax, 0x500
je 0x4ffc49
cmp eax, 0x600
je 0x4ffca6
cmp eax, edx
jne 0x4ffb58
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4ffc74
mov ecx, dword [0x558570]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4ffc74
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4ffc90
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4ffc90
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4ffc99
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4ffcaf
or dword [ebp - 0xc], 0x8000000
jmp 0x4ffcba
mov dword [ebp - 0x14], 5
jmp 0x4ffc50
test al, 0x10
je 0x4ffcba
or dword [ebp - 0xc], 0x10000000
call fcn.00500af4
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4ffce0
call fcn.004ec413
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004ec400
mov dword [eax], 0x18
jmp 0x4ffd6e
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 0x4ffd7a
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4ffd46
test byte [ebp + 0x10], 1
je 0x4ffd46
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 0x4ffd7a
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x59ee80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004ec426
pop ecx
call fcn.004ec400
mov eax, dword [eax]
jmp 0x500207
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4ffdcb
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x59ee80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004ec426
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4ffd6e
call fcn.004ec400
mov dword [eax], 0xd
jmp 0x4ffd6e
cmp eax, 2
jne 0x4ffdd6
or byte [ebp - 1], 0x40
jmp 0x4ffddf
cmp eax, 3
jne 0x4ffddf
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.005008c3
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x59ee80]
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 + 0x59ee80]
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 0x4ffeb4
test cl, 0x80
je 0x4fff84
test byte [ebp + 0x10], 2
je 0x4ffeb4
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00508271
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4ffe73
call fcn.004ec413
cmp dword [eax], 0x83
je 0x4ffeb4
push dword [esi]
call fcn.004f0d11
jmp 0x4ffd6d
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00507bb3
add esp, 0xc
test eax, eax
jne 0x4ffea4
cmp byte [ebp - 4], 0x1a
jne 0x4ffea4
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.005078fa
add esp, 0xc
cmp eax, edi
je 0x4ffe67
push ebx
push ebx
push dword [esi]
call fcn.00508271
add esp, 0xc
cmp eax, edi
je 0x4ffe67
test byte [ebp - 1], 0x80
je 0x4fff84
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4ffedc
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4ffed9
or dword [ebp + 0x10], edi
jmp 0x4ffedc
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4fff29
cmp eax, 0x10000
je 0x4fff15
cmp eax, 0x14000
je 0x4fff15
cmp eax, 0x20000
je 0x4fff23
cmp eax, 0x24000
je 0x4fff23
cmp eax, 0x40000
je 0x4fff0f
cmp eax, 0x44000
jne 0x4fff2c
mov byte [ebp - 2], 1
jmp 0x4fff2c
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4fff2c
mov byte [ebp - 2], 2
jmp 0x4fff2c
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4fff84
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4fff84
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x5000de
cmp eax, 0x80000000
je 0x5000a5
cmp eax, ecx
jne 0x4fff84
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4fff84
cmp eax, 2
jbe 0x500186
cmp eax, 4
jbe 0x500077
cmp eax, 5
je 0x500186
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x59ee80]
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 + 0x59ee80]
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 0x4ffff6
test byte [ebp + 0x10], 8
je 0x4ffff6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x59ee80]
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 0x500205
test byte [ebp + 0x10], 1
je 0x500205
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 0x5001ee
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004ec426
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x59ee80]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00500940
pop ecx
jmp 0x4ffd6d
push 2
push ebx
push ebx
push dword [esi]
call fcn.004fea58
add esp, 0x10
or eax, edx
je 0x500186
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004fea58
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4ffe67
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00507bb3
add esp, 0xc
cmp eax, 0xffffffff
je 0x4ffe67
cmp eax, 2
je 0x50012a
cmp eax, 3
jne 0x500178
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x50012a
mov byte [ebp - 2], 1
jmp 0x4fff84
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4fff84
cmp eax, 2
jbe 0x500186
cmp eax, 4
ja 0x4fff7b
push 2
push ebx
push ebx
push dword [esi]
call fcn.004fea58
add esp, 0x10
or eax, edx
je 0x500186
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004fea58
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4fff84
jmp 0x4ffe67
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x500152
push dword [esi]
call fcn.004f0d11
pop ecx
call fcn.004ec400
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x500207
cmp eax, 0xfeff
jne 0x500178
push ebx
push 2
push dword [esi]
call fcn.00508271
add esp, 0xc
cmp eax, 0xffffffff
je 0x4ffe67
mov byte [ebp - 2], 2
jmp 0x4fff84
push ebx
push ebx
push dword [esi]
call fcn.00508271
add esp, 0xc
jmp 0x50011c
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x5001a6
dec eax
jne 0x4fff84
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x5001b4
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.004ff1ba
add esp, 0xc
cmp eax, 0xffffffff
je 0x5001da
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x5001b4
jmp 0x4fff84
push dword [esi]
call fcn.004f0d11
pop ecx
call fcn.004ec400
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x500207
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x59ee80]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret