Function at 0x49fbef
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 0x49fc1e
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x49fc28
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004a29c1
test eax, eax
pop ecx
je 0x49fc43
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004964c6
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004950df
test eax, eax
pop ecx
je 0x49fc5e
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004964c6
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x49fc7b
test ecx, 0x74000
jne 0x49fc77
cmp dword [ebp - 0x24], eax
je 0x49fc7b
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x49fcd5
dec eax
je 0x49fcbf
dec eax
je 0x49fcba
call fcn.0049372d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0049371a
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004965c2
add esp, 0x14
jmp 0x4a0287
mov dword [ebp - 8], edx
jmp 0x49fcd8
test cl, 8
je 0x49fccc
test ecx, 0x70000
jne 0x49fcba
mov dword [ebp - 8], 0x40000000
jmp 0x49fcd8
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x49fd19
sub eax, ecx
je 0x49fd10
sub eax, ecx
je 0x49fd07
sub eax, ecx
je 0x49fcfe
sub eax, 0x40
jne 0x49fc94
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x49fd1c
mov dword [ebp - 0x10], 3
jmp 0x49fd1c
mov dword [ebp - 0x10], 2
jmp 0x49fd1c
mov dword [ebp - 0x10], 1
jmp 0x49fd1c
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 0x49fd6f
je 0x49fd66
cmp eax, ebx
je 0x49fd66
cmp eax, edi
je 0x49fd5d
cmp eax, 0x200
je 0x49fde2
cmp eax, 0x300
jne 0x49fc94
mov dword [ebp - 0x14], 2
jmp 0x49fd8c
mov dword [ebp - 0x14], 4
jmp 0x49fd8c
mov dword [ebp - 0x14], 3
jmp 0x49fd8c
cmp eax, 0x500
je 0x49fd85
cmp eax, 0x600
je 0x49fde2
cmp eax, edx
jne 0x49fc94
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x49fdb0
mov ecx, dword [0x4ec918]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x49fdb0
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x49fdcc
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x49fdcc
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x49fdd5
or dword [ebp - 0xc], edi
test al, 0x20
je 0x49fdeb
or dword [ebp - 0xc], 0x8000000
jmp 0x49fdf6
mov dword [ebp - 0x14], 5
jmp 0x49fd8c
test al, 0x10
je 0x49fdf6
or dword [ebp - 0xc], 0x10000000
call fcn.0049f8d0
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x49fe1c
call fcn.0049372d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0049371a
mov dword [eax], 0x18
jmp 0x49feaa
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 0x49feb6
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x49fe82
test byte [ebp + 0x10], 1
je 0x49fe82
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 0x49feb6
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ed480]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00493740
pop ecx
call fcn.0049371a
mov eax, dword [eax]
jmp 0x4a0343
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x49ff07
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ed480]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00493740
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x49feaa
call fcn.0049371a
mov dword [eax], 0xd
jmp 0x49feaa
cmp eax, 2
jne 0x49ff12
or byte [ebp - 1], 0x40
jmp 0x49ff1b
cmp eax, 3
jne 0x49ff1b
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0049f69f
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4ed480]
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 + 0x4ed480]
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 0x49fff0
test cl, 0x80
je 0x4a00c0
test byte [ebp + 0x10], 2
je 0x49fff0
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0049d721
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x49ffaf
call fcn.0049372d
cmp dword [eax], 0x83
je 0x49fff0
push dword [esi]
call fcn.0049872c
jmp 0x49fea9
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0049d8b3
add esp, 0xc
test eax, eax
jne 0x49ffe0
cmp byte [ebp - 4], 0x1a
jne 0x49ffe0
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004a2751
add esp, 0xc
cmp eax, edi
je 0x49ffa3
push ebx
push ebx
push dword [esi]
call fcn.0049d721
add esp, 0xc
cmp eax, edi
je 0x49ffa3
test byte [ebp - 1], 0x80
je 0x4a00c0
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4a0018
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4a0015
or dword [ebp + 0x10], edi
jmp 0x4a0018
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4a0065
cmp eax, 0x10000
je 0x4a0051
cmp eax, 0x14000
je 0x4a0051
cmp eax, 0x20000
je 0x4a005f
cmp eax, 0x24000
je 0x4a005f
cmp eax, 0x40000
je 0x4a004b
cmp eax, 0x44000
jne 0x4a0068
mov byte [ebp - 2], 1
jmp 0x4a0068
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4a0068
mov byte [ebp - 2], 2
jmp 0x4a0068
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4a00c0
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4a00c0
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4a021a
cmp eax, 0x80000000
je 0x4a01e1
cmp eax, ecx
jne 0x4a00c0
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a00c0
cmp eax, 2
jbe 0x4a02c2
cmp eax, 4
jbe 0x4a01b3
cmp eax, 5
je 0x4a02c2
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ed480]
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 + 0x4ed480]
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 0x4a0132
test byte [ebp + 0x10], 8
je 0x4a0132
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ed480]
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 0x4a0341
test byte [ebp + 0x10], 1
je 0x4a0341
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 0x4a032a
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00493740
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ed480]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0049f71c
pop ecx
jmp 0x49fea9
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049efca
add esp, 0x10
or eax, edx
je 0x4a02c2
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049efca
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x49ffa3
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0049d8b3
add esp, 0xc
cmp eax, 0xffffffff
je 0x49ffa3
cmp eax, 2
je 0x4a0266
cmp eax, 3
jne 0x4a02b4
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4a0266
mov byte [ebp - 2], 1
jmp 0x4a00c0
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4a00c0
cmp eax, 2
jbe 0x4a02c2
cmp eax, 4
ja 0x4a00b7
push 2
push ebx
push ebx
push dword [esi]
call fcn.0049efca
add esp, 0x10
or eax, edx
je 0x4a02c2
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0049efca
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4a00c0
jmp 0x49ffa3
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4a028e
push dword [esi]
call fcn.0049872c
pop ecx
call fcn.0049371a
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4a0343
cmp eax, 0xfeff
jne 0x4a02b4
push ebx
push 2
push dword [esi]
call fcn.0049d721
add esp, 0xc
cmp eax, 0xffffffff
je 0x49ffa3
mov byte [ebp - 2], 2
jmp 0x4a00c0
push ebx
push ebx
push dword [esi]
call fcn.0049d721
add esp, 0xc
jmp 0x4a0258
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4a02e2
dec eax
jne 0x4a00c0
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4a02f0
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.0049d645
add esp, 0xc
cmp eax, 0xffffffff
je 0x4a0316
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4a02f0
jmp 0x4a00c0
push dword [esi]
call fcn.0049872c
pop ecx
call fcn.0049371a
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4a0343
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ed480]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret