Function at 0x49d3cf
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 0x49d3fe
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x49d408
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004a01a1
test eax, eax
pop ecx
je 0x49d423
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00493c05
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004928bf
test eax, eax
pop ecx
je 0x49d43e
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00493c05
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x49d45b
test ecx, 0x74000
jne 0x49d457
cmp dword [ebp - 0x24], eax
je 0x49d45b
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x49d4b5
dec eax
je 0x49d49f
dec eax
je 0x49d49a
call fcn.00490f0d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00490efa
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00493d01
add esp, 0x14
jmp 0x49da67
mov dword [ebp - 8], edx
jmp 0x49d4b8
test cl, 8
je 0x49d4ac
test ecx, 0x70000
jne 0x49d49a
mov dword [ebp - 8], 0x40000000
jmp 0x49d4b8
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x49d4f9
sub eax, ecx
je 0x49d4f0
sub eax, ecx
je 0x49d4e7
sub eax, ecx
je 0x49d4de
sub eax, 0x40
jne 0x49d474
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x49d4fc
mov dword [ebp - 0x10], 3
jmp 0x49d4fc
mov dword [ebp - 0x10], 2
jmp 0x49d4fc
mov dword [ebp - 0x10], 1
jmp 0x49d4fc
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 0x49d54f
je 0x49d546
cmp eax, ebx
je 0x49d546
cmp eax, edi
je 0x49d53d
cmp eax, 0x200
je 0x49d5c2
cmp eax, 0x300
jne 0x49d474
mov dword [ebp - 0x14], 2
jmp 0x49d56c
mov dword [ebp - 0x14], 4
jmp 0x49d56c
mov dword [ebp - 0x14], 3
jmp 0x49d56c
cmp eax, 0x500
je 0x49d565
cmp eax, 0x600
je 0x49d5c2
cmp eax, edx
jne 0x49d474
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x49d590
mov ecx, dword [0x4e80d8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x49d590
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x49d5ac
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x49d5ac
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x49d5b5
or dword [ebp - 0xc], edi
test al, 0x20
je 0x49d5cb
or dword [ebp - 0xc], 0x8000000
jmp 0x49d5d6
mov dword [ebp - 0x14], 5
jmp 0x49d56c
test al, 0x10
je 0x49d5d6
or dword [ebp - 0xc], 0x10000000
call fcn.0049d0b0
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x49d5fc
call fcn.00490f0d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00490efa
mov dword [eax], 0x18
jmp 0x49d68a
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 0x49d696
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x49d662
test byte [ebp + 0x10], 1
je 0x49d662
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 0x49d696
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4e8c40]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00490f20
pop ecx
call fcn.00490efa
mov eax, dword [eax]
jmp 0x49db23
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x49d6e7
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4e8c40]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00490f20
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x49d68a
call fcn.00490efa
mov dword [eax], 0xd
jmp 0x49d68a
cmp eax, 2
jne 0x49d6f2
or byte [ebp - 1], 0x40
jmp 0x49d6fb
cmp eax, 3
jne 0x49d6fb
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0049ce7f
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4e8c40]
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 + 0x4e8c40]
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 0x49d7d0
test cl, 0x80
je 0x49d8a0
test byte [ebp + 0x10], 2
je 0x49d7d0
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0049af01
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x49d78f
call fcn.00490f0d
cmp dword [eax], 0x83
je 0x49d7d0
push dword [esi]
call fcn.00495f0c
jmp 0x49d689
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0049b093
add esp, 0xc
test eax, eax
jne 0x49d7c0
cmp byte [ebp - 4], 0x1a
jne 0x49d7c0
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0049ff31
add esp, 0xc
cmp eax, edi
je 0x49d783
push ebx
push ebx
push dword [esi]
call fcn.0049af01
add esp, 0xc
cmp eax, edi
je 0x49d783
test byte [ebp - 1], 0x80
je 0x49d8a0
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x49d7f8
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x49d7f5
or dword [ebp + 0x10], edi
jmp 0x49d7f8
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x49d845
cmp eax, 0x10000
je 0x49d831
cmp eax, 0x14000
je 0x49d831
cmp eax, 0x20000
je 0x49d83f
cmp eax, 0x24000
je 0x49d83f
cmp eax, 0x40000
je 0x49d82b
cmp eax, 0x44000
jne 0x49d848
mov byte [ebp - 2], 1
jmp 0x49d848
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x49d848
mov byte [ebp - 2], 2
jmp 0x49d848
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x49d8a0
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x49d8a0
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x49d9fa
cmp eax, 0x80000000
je 0x49d9c1
cmp eax, ecx
jne 0x49d8a0
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x49d8a0
cmp eax, 2
jbe 0x49daa2
cmp eax, 4
jbe 0x49d993
cmp eax, 5
je 0x49daa2
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4e8c40]
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 + 0x4e8c40]
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 0x49d912
test byte [ebp + 0x10], 8
je 0x49d912
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4e8c40]
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 0x49db21
test byte [ebp + 0x10], 1
je 0x49db21
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 0x49db0a
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00490f20
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4e8c40]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0049cefc
pop ecx
jmp 0x49d689
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049c7aa
add esp, 0x10
or eax, edx
je 0x49daa2
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049c7aa
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x49d783
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0049b093
add esp, 0xc
cmp eax, 0xffffffff
je 0x49d783
cmp eax, 2
je 0x49da46
cmp eax, 3
jne 0x49da94
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x49da46
mov byte [ebp - 2], 1
jmp 0x49d8a0
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x49d8a0
cmp eax, 2
jbe 0x49daa2
cmp eax, 4
ja 0x49d897
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049c7aa
add esp, 0x10
or eax, edx
je 0x49daa2
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049c7aa
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x49d8a0
jmp 0x49d783
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x49da6e
push dword [esi]
call fcn.00495f0c
pop ecx
call fcn.00490efa
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x49db23
cmp eax, 0xfeff
jne 0x49da94
push ebx
push 2
push dword [esi]
call fcn.0049af01
add esp, 0xc
cmp eax, 0xffffffff
je 0x49d783
mov byte [ebp - 2], 2
jmp 0x49d8a0
push ebx
push ebx
push dword [esi]
call fcn.0049af01
add esp, 0xc
jmp 0x49da38
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x49dac2
dec eax
jne 0x49d8a0
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x49dad0
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.0049ae25
add esp, 0xc
cmp eax, 0xffffffff
je 0x49daf6
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x49dad0
jmp 0x49d8a0
push dword [esi]
call fcn.00495f0c
pop ecx
call fcn.00490efa
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x49db23
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4e8c40]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret