Function at 0x49fb8f
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x38
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 - 0x38], 0xc
mov dword [ebp - 0x34], ebx
je 0x49fbbe
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x49fbc8
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004a349d
test eax, eax
pop ecx
je 0x49fbe3
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00484a74
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00491add
test eax, eax
pop ecx
je 0x49fbfe
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00484a74
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x49fc1b
test ecx, 0x74000
jne 0x49fc17
cmp dword [ebp - 0x24], eax
je 0x49fc1b
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x49fc75
dec eax
je 0x49fc5f
dec eax
je 0x49fc5a
call fcn.00487cd4
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00487cc1
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00484b70
add esp, 0x14
jmp 0x4a0228
mov dword [ebp - 8], edx
jmp 0x49fc78
test cl, 8
je 0x49fc6c
test ecx, 0x70000
jne 0x49fc5a
mov dword [ebp - 8], 0x40000000
jmp 0x49fc78
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x49fcb9
sub eax, ecx
je 0x49fcb0
sub eax, ecx
je 0x49fca7
sub eax, ecx
je 0x49fc9e
sub eax, 0x40
jne 0x49fc34
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x49fcbc
mov dword [ebp - 0x10], 3
jmp 0x49fcbc
mov dword [ebp - 0x10], 2
jmp 0x49fcbc
mov dword [ebp - 0x10], 1
jmp 0x49fcbc
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, pe_nt_image_headers32
jg 0x49fd0f
je 0x49fd06
cmp eax, ebx
je 0x49fd06
cmp eax, edi
je 0x49fcfd
cmp eax, 0x200
je 0x49fd82
cmp eax, 0x300
jne 0x49fc34
mov dword [ebp - 0x14], 2
jmp 0x49fd2c
mov dword [ebp - 0x14], 4
jmp 0x49fd2c
mov dword [ebp - 0x14], 3
jmp 0x49fd2c
cmp eax, 0x500
je 0x49fd25
cmp eax, 0x600
je 0x49fd82
cmp eax, edx
jne 0x49fc34
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x49fd50
mov ecx, dword [0x509928]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x49fd50
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x49fd6c
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x49fd6c
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x49fd75
or dword [ebp - 0xc], edi
test al, 0x20
je 0x49fd8b
or dword [ebp - 0xc], 0x8000000
jmp 0x49fd96
mov dword [ebp - 0x14], 5
jmp 0x49fd2c
test al, 0x10
je 0x49fd96
or dword [ebp - 0xc], 0x10000000
call fcn.004a073c
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x49fdbc
call fcn.00487cd4
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00487cc1
mov dword [eax], 0x18
jmp 0x49fe4a
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.DLL_CreateFileW]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x38]
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 0x49fe56
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x49fe22
test byte [ebp + 0x10], 1
je 0x49fe22
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
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 0x49fe56
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x50bb60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.00487ce7
pop ecx
call fcn.00487cc1
mov eax, dword [eax]
jmp 0x4a02e4
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_GetFileType]
cmp eax, ebx
jne 0x49fea7
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x50bb60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
mov esi, eax
push esi
call fcn.00487ce7
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_CloseHandle]
cmp esi, ebx
jne 0x49fe4a
call fcn.00487cc1
mov dword [eax], 0xd
jmp 0x49fe4a
cmp eax, 2
jne 0x49feb2
or byte [ebp - 1], 0x40
jmp 0x49febb
cmp eax, 3
jne 0x49febb
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004a050b
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x50bb60]
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 + 0x50bb60]
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 0x49ff91
test cl, 0x80
je 0x4a0061
test byte [ebp + 0x10], 2
je 0x49ff91
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0049715d
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x49ff4f
call fcn.00487cd4
cmp dword [eax], 0x83
je 0x49ff91
push dword [esi]
call fcn.00496bb6
jmp 0x49fe49
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004964cb
add esp, 0xc
test eax, eax
jne 0x49ff81
cmp word [ebp - 0x2c], 0x1a
jne 0x49ff81
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004a322d
add esp, 0xc
cmp eax, edi
je 0x49ff43
push ebx
push ebx
push dword [esi]
call fcn.0049715d
add esp, 0xc
cmp eax, edi
je 0x49ff43
test byte [ebp - 1], 0x80
je 0x4a0061
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x49ffb9
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x49ffb6
or dword [ebp + 0x10], edi
jmp 0x49ffb9
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4a0006
cmp eax, 0x10000
je 0x49fff2
cmp eax, 0x14000
je 0x49fff2
cmp eax, 0x20000
je 0x4a0000
cmp eax, 0x24000
je 0x4a0000
cmp eax, 0x40000
je 0x49ffec
cmp eax, 0x44000
jne 0x4a0009
mov byte [ebp - 2], 1
jmp 0x4a0009
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4a0009
mov byte [ebp - 2], 2
jmp 0x4a0009
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4a0061
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4a0061
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4a01bb
cmp eax, 0x80000000
je 0x4a0182
cmp eax, ecx
jne 0x4a0061
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a0061
cmp eax, 2
jbe 0x4a0263
cmp eax, 4
jbe 0x4a0154
cmp eax, 5
je 0x4a0263
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50bb60]
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 + 0x50bb60]
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 0x4a00d3
test byte [ebp + 0x10], 8
je 0x4a00d3
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50bb60]
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 0x4a02e2
test byte [ebp + 0x10], 1
je 0x4a02e2
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.DLL_CreateFileW]
cmp eax, 0xffffffff
jne 0x4a02cb
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.00487ce7
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50bb60]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004a0588
pop ecx
jmp 0x49fe49
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049e27d
add esp, 0x10
or eax, edx
je 0x4a0263
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049e27d
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x49ff43
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004964cb
add esp, 0xc
cmp eax, 0xffffffff
je 0x49ff43
cmp eax, 2
je 0x4a0207
cmp eax, 3
jne 0x4a0255
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4a0207
mov byte [ebp - 2], 1
jmp 0x4a0061
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a0061
cmp eax, 2
jbe 0x4a0263
cmp eax, 4
ja 0x4a0058
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049e27d
add esp, 0x10
or eax, edx
je 0x4a0263
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049e27d
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4a0061
jmp 0x49ff43
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4a022f
push dword [esi]
call fcn.00496bb6
pop ecx
call fcn.00487cc1
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4a02e4
cmp eax, 0xfeff
jne 0x4a0255
push ebx
push 2
push dword [esi]
call fcn.0049715d
add esp, 0xc
cmp eax, 0xffffffff
je 0x49ff43
mov byte [ebp - 2], 2
jmp 0x4a0061
push ebx
push ebx
push dword [esi]
call fcn.0049715d
add esp, 0xc
jmp 0x4a01f9
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4a0283
dec eax
jne 0x4a0061
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4a0291
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.00499d42
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a02b7
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4a0291
jmp 0x4a0061
push dword [esi]
call fcn.00496bb6
pop ecx
call fcn.00487cc1
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4a02e4
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x50bb60]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret