Function at 0x4bfaa1
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 0x4bfad0
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4bfada
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004c34a0
test eax, eax
pop ecx
je 0x4bfaf5
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0049fdb4
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004a877f
test eax, eax
pop ecx
je 0x4bfb10
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0049fdb4
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4bfb2d
test ecx, 0x74000
jne 0x4bfb29
cmp dword [ebp - 0x24], eax
je 0x4bfb2d
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, bind
je 0x4bfb87
dec eax
je 0x4bfb71
dec eax
je 0x4bfb6c
call fcn.004a2f43
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004a2f30
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0049fee8
add esp, 0x14
jmp 0x4c0139
mov dword [ebp - 8], edx
jmp 0x4bfb8a
test cl, 8
je 0x4bfb7e
test ecx, 0x70000
jne 0x4bfb6c
mov dword [ebp - 8], 0x40000000
jmp 0x4bfb8a
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4bfbcb
sub eax, ecx
je 0x4bfbc2
sub eax, ecx
je 0x4bfbb9
sub eax, ecx
je 0x4bfbb0
sub eax, 0x40
jne 0x4bfb46
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4bfbce
mov dword [ebp - 0x10], 3
jmp 0x4bfbce
mov dword [ebp - 0x10], 2
jmp 0x4bfbce
mov dword [ebp - 0x10], 1
jmp 0x4bfbce
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 0x4bfc21
je 0x4bfc18
cmp eax, ebx
je 0x4bfc18
cmp eax, edi
je 0x4bfc0f
cmp eax, 0x200
je 0x4bfc94
cmp eax, 0x300
jne 0x4bfb46
mov dword [ebp - 0x14], 2
jmp 0x4bfc3e
mov dword [ebp - 0x14], 4
jmp 0x4bfc3e
mov dword [ebp - 0x14], 3
jmp 0x4bfc3e
cmp eax, 0x500
je 0x4bfc37
cmp eax, 0x600
je 0x4bfc94
cmp eax, edx
jne 0x4bfb46
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4bfc62
mov ecx, dword [0x4f98cc]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4bfc62
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4bfc7e
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4bfc7e
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4bfc87
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4bfc9d
or dword [ebp - 0xc], 0x8000000
jmp 0x4bfca8
mov dword [ebp - 0x14], 5
jmp 0x4bfc3e
test al, 0x10
je 0x4bfca8
or dword [ebp - 0xc], 0x10000000
call fcn.004c0ae0
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4bfcce
call fcn.004a2f43
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004a2f30
mov dword [eax], 0x18
jmp 0x4bfd5c
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 0x4bfd68
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4bfd34
test byte [ebp + 0x10], 1
je 0x4bfd34
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 0x4bfd68
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x53f000]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004a2f56
pop ecx
call fcn.004a2f30
mov eax, dword [eax]
jmp 0x4c01f5
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4bfdb9
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x53f000]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004a2f56
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4bfd5c
call fcn.004a2f30
mov dword [eax], 0xd
jmp 0x4bfd5c
cmp eax, 2
jne 0x4bfdc4
or byte [ebp - 1], 0x40
jmp 0x4bfdcd
cmp eax, 3
jne 0x4bfdcd
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004c08af
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x53f000]
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 + 0x53f000]
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 0x4bfea2
test cl, 0x80
je 0x4bff72
test byte [ebp + 0x10], 2
je 0x4bfea2
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004c3250
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4bfe61
call fcn.004a2f43
cmp dword [eax], 0x83
je 0x4bfea2
push dword [esi]
call fcn.004ab71d
jmp 0x4bfd5b
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004c2b92
add esp, 0xc
test eax, eax
jne 0x4bfe92
cmp byte [ebp - 4], 0x1a
jne 0x4bfe92
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004c28d9
add esp, 0xc
cmp eax, edi
je 0x4bfe55
push ebx
push ebx
push dword [esi]
call fcn.004c3250
add esp, 0xc
cmp eax, edi
je 0x4bfe55
test byte [ebp - 1], 0x80
je 0x4bff72
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4bfeca
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4bfec7
or dword [ebp + 0x10], edi
jmp 0x4bfeca
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4bff17
cmp eax, 0x10000
je 0x4bff03
cmp eax, 0x14000
je 0x4bff03
cmp eax, 0x20000
je 0x4bff11
cmp eax, 0x24000
je 0x4bff11
cmp eax, 0x40000
je 0x4bfefd
cmp eax, 0x44000
jne 0x4bff1a
mov byte [ebp - 2], 1
jmp 0x4bff1a
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4bff1a
mov byte [ebp - 2], 2
jmp 0x4bff1a
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4bff72
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4bff72
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4c00cc
cmp eax, 0x80000000
je 0x4c0093
cmp eax, ecx
jne 0x4bff72
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4bff72
cmp eax, 2
jbe 0x4c0174
cmp eax, 4
jbe 0x4c0065
cmp eax, 5
je 0x4c0174
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x53f000]
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 + 0x53f000]
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 0x4bffe4
test byte [ebp + 0x10], 8
je 0x4bffe4
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x53f000]
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 0x4c01f3
test byte [ebp + 0x10], 1
je 0x4c01f3
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 0x4c01dc
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004a2f56
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x53f000]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004c092c
pop ecx
jmp 0x4bfd5b
push 2
push ebx
push ebx
push dword [esi]
call fcn.004b519b
add esp, 0x10
or eax, edx
je 0x4c0174
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004b519b
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4bfe55
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004c2b92
add esp, 0xc
cmp eax, 0xffffffff
je 0x4bfe55
cmp eax, 2
je 0x4c0118
cmp eax, 3
jne 0x4c0166
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4c0118
mov byte [ebp - 2], 1
jmp 0x4bff72
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4bff72
cmp eax, 2
jbe 0x4c0174
cmp eax, 4
ja 0x4bff69
push 2
push ebx
push ebx
push dword [esi]
call fcn.004b519b
add esp, 0x10
or eax, edx
je 0x4c0174
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004b519b
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4bff72
jmp 0x4bfe55
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4c0140
push dword [esi]
call fcn.004ab71d
pop ecx
call fcn.004a2f30
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4c01f5
cmp eax, 0xfeff
jne 0x4c0166
push ebx
push 2
push dword [esi]
call fcn.004c3250
add esp, 0xc
cmp eax, 0xffffffff
je 0x4bfe55
mov byte [ebp - 2], 2
jmp 0x4bff72
push ebx
push ebx
push dword [esi]
call fcn.004c3250
add esp, 0xc
jmp 0x4c010a
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4c0194
dec eax
jne 0x4bff72
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4c01a2
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.004b58fd
add esp, 0xc
cmp eax, 0xffffffff
je 0x4c01c8
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4c01a2
jmp 0x4bff72
push dword [esi]
call fcn.004ab71d
pop ecx
call fcn.004a2f30
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4c01f5
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x53f000]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret