Function at 0x4956c4
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 0x4956f3
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4956fd
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0049819d
test eax, eax
pop ecx
je 0x495718
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048a07f
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00483f4f
test eax, eax
pop ecx
je 0x495733
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0048a07f
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x495750
test ecx, 0x74000
jne 0x49574c
cmp dword [ebp - 0x24], eax
je 0x495750
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x4957aa
dec eax
je 0x495794
dec eax
je 0x49578f
call fcn.004875ca
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004875b7
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0048a17b
add esp, 0x14
jmp 0x495d5c
mov dword [ebp - 8], edx
jmp 0x4957ad
test cl, 8
je 0x4957a1
test ecx, 0x70000
jne 0x49578f
mov dword [ebp - 8], 0x40000000
jmp 0x4957ad
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4957ee
sub eax, ecx
je 0x4957e5
sub eax, ecx
je 0x4957dc
sub eax, ecx
je 0x4957d3
sub eax, 0x40
jne 0x495769
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4957f1
mov dword [ebp - 0x10], 3
jmp 0x4957f1
mov dword [ebp - 0x10], 2
jmp 0x4957f1
mov dword [ebp - 0x10], 1
jmp 0x4957f1
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 0x495844
je 0x49583b
cmp eax, ebx
je 0x49583b
cmp eax, edi
je 0x495832
cmp eax, 0x200
je 0x4958b7
cmp eax, 0x300
jne 0x495769
mov dword [ebp - 0x14], 2
jmp 0x495861
mov dword [ebp - 0x14], 4
jmp 0x495861
mov dword [ebp - 0x14], 3
jmp 0x495861
cmp eax, 0x500
je 0x49585a
cmp eax, 0x600
je 0x4958b7
cmp eax, edx
jne 0x495769
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x495885
mov ecx, dword [0x4b900c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x495885
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4958a1
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4958a1
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4958aa
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4958c0
or dword [ebp - 0xc], 0x8000000
jmp 0x4958cb
mov dword [ebp - 0x14], 5
jmp 0x495861
test al, 0x10
je 0x4958cb
or dword [ebp - 0xc], 0x10000000
call fcn.0049661c
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4958f1
call fcn.004875ca
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004875b7
mov dword [eax], 0x18
jmp 0x49597f
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 0x49598b
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x495957
test byte [ebp + 0x10], 1
je 0x495957
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 0x49598b
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4c6ee0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004875dd
pop ecx
call fcn.004875b7
mov eax, dword [eax]
jmp 0x495e18
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4959dc
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4c6ee0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004875dd
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x49597f
call fcn.004875b7
mov dword [eax], 0xd
jmp 0x49597f
cmp eax, 2
jne 0x4959e7
or byte [ebp - 1], 0x40
jmp 0x4959f0
cmp eax, 3
jne 0x4959f0
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004963eb
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4c6ee0]
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 + 0x4c6ee0]
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 0x495ac5
test cl, 0x80
je 0x495b95
test byte [ebp + 0x10], 2
je 0x495ac5
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0049806f
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x495a84
call fcn.004875ca
cmp dword [eax], 0x83
je 0x495ac5
push dword [esi]
call fcn.0048c456
jmp 0x49597e
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0048bd6b
add esp, 0xc
test eax, eax
jne 0x495ab5
cmp byte [ebp - 4], 0x1a
jne 0x495ab5
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00497ebb
add esp, 0xc
cmp eax, edi
je 0x495a78
push ebx
push ebx
push dword [esi]
call fcn.0049806f
add esp, 0xc
cmp eax, edi
je 0x495a78
test byte [ebp - 1], 0x80
je 0x495b95
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x495aed
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x495aea
or dword [ebp + 0x10], edi
jmp 0x495aed
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x495b3a
cmp eax, 0x10000
je 0x495b26
cmp eax, 0x14000
je 0x495b26
cmp eax, 0x20000
je 0x495b34
cmp eax, 0x24000
je 0x495b34
cmp eax, 0x40000
je 0x495b20
cmp eax, 0x44000
jne 0x495b3d
mov byte [ebp - 2], 1
jmp 0x495b3d
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x495b3d
mov byte [ebp - 2], 2
jmp 0x495b3d
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x495b95
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x495b95
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x495cef
cmp eax, 0x80000000
je 0x495cb6
cmp eax, ecx
jne 0x495b95
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x495b95
cmp eax, 2
jbe 0x495d97
cmp eax, 4
jbe 0x495c88
cmp eax, 5
je 0x495d97
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4c6ee0]
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 + 0x4c6ee0]
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 0x495c07
test byte [ebp + 0x10], 8
je 0x495c07
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4c6ee0]
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 0x495e16
test byte [ebp + 0x10], 1
je 0x495e16
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 0x495dff
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004875dd
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4c6ee0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00496468
pop ecx
jmp 0x49597e
push 2
push ebx
push ebx
push dword [esi]
call fcn.00494b20
add esp, 0x10
or eax, edx
je 0x495d97
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00494b20
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x495a78
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0048bd6b
add esp, 0xc
cmp eax, 0xffffffff
je 0x495a78
cmp eax, 2
je 0x495d3b
cmp eax, 3
jne 0x495d89
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x495d3b
mov byte [ebp - 2], 1
jmp 0x495b95
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x495b95
cmp eax, 2
jbe 0x495d97
cmp eax, 4
ja 0x495b8c
push 2
push ebx
push ebx
push dword [esi]
call fcn.00494b20
add esp, 0x10
or eax, edx
je 0x495d97
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00494b20
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x495b95
jmp 0x495a78
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x495d63
push dword [esi]
call fcn.0048c456
pop ecx
call fcn.004875b7
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x495e18
cmp eax, 0xfeff
jne 0x495d89
push ebx
push 2
push dword [esi]
call fcn.0049806f
add esp, 0xc
cmp eax, 0xffffffff
je 0x495a78
mov byte [ebp - 2], 2
jmp 0x495b95
push ebx
push ebx
push dword [esi]
call fcn.0049806f
add esp, 0xc
jmp 0x495d2d
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x495db7
dec eax
jne 0x495b95
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x495dc5
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.00495282
add esp, 0xc
cmp eax, 0xffffffff
je 0x495deb
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x495dc5
jmp 0x495b95
push dword [esi]
call fcn.0048c456
pop ecx
call fcn.004875b7
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x495e18
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4c6ee0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret