Function at 0x4c22ea
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 0x4c2319
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4c2323
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004c5274
test eax, eax
pop ecx
je 0x4c233e
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004a8bf4
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004b0b93
test eax, eax
pop ecx
je 0x4c2359
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004a8bf4
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4c2376
test ecx, 0x74000
jne 0x4c2372
cmp dword [ebp - 0x24], eax
je 0x4c2376
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x4c23d0
dec eax
je 0x4c23ba
dec eax
je 0x4c23b5
call fcn.004ab30b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004ab2f8
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004a8cf0
add esp, 0x14
jmp 0x4c2983
mov dword [ebp - 8], edx
jmp 0x4c23d3
test cl, 8
je 0x4c23c7
test ecx, 0x70000
jne 0x4c23b5
mov dword [ebp - 8], 0x40000000
jmp 0x4c23d3
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4c2414
sub eax, ecx
je 0x4c240b
sub eax, ecx
je 0x4c2402
sub eax, ecx
je 0x4c23f9
sub eax, 0x40
jne 0x4c238f
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4c2417
mov dword [ebp - 0x10], 3
jmp 0x4c2417
mov dword [ebp - 0x10], 2
jmp 0x4c2417
mov dword [ebp - 0x10], 1
jmp 0x4c2417
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 0x4c246a
je 0x4c2461
cmp eax, ebx
je 0x4c2461
cmp eax, edi
je 0x4c2458
cmp eax, 0x200
je 0x4c24dd
cmp eax, 0x300
jne 0x4c238f
mov dword [ebp - 0x14], 2
jmp 0x4c2487
mov dword [ebp - 0x14], 4
jmp 0x4c2487
mov dword [ebp - 0x14], 3
jmp 0x4c2487
cmp eax, 0x500
je 0x4c2480
cmp eax, 0x600
je 0x4c24dd
cmp eax, edx
jne 0x4c238f
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4c24ab
mov ecx, dword [0x4fd2b0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4c24ab
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4c24c7
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4c24c7
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4c24d0
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4c24e6
or dword [ebp - 0xc], 0x8000000
jmp 0x4c24f1
mov dword [ebp - 0x14], 5
jmp 0x4c2487
test al, 0x10
je 0x4c24f1
or dword [ebp - 0xc], 0x10000000
call fcn.004c097e
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4c2517
call fcn.004ab30b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004ab2f8
mov dword [eax], 0x18
jmp 0x4c25a5
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 0x4c25b1
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4c257d
test byte [ebp + 0x10], 1
je 0x4c257d
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 0x4c25b1
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ffba0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004ab31e
pop ecx
call fcn.004ab2f8
mov eax, dword [eax]
jmp 0x4c2a3f
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4c2602
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ffba0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004ab31e
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4c25a5
call fcn.004ab2f8
mov dword [eax], 0xd
jmp 0x4c25a5
cmp eax, 2
jne 0x4c260d
or byte [ebp - 1], 0x40
jmp 0x4c2616
cmp eax, 3
jne 0x4c2616
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004c074d
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4ffba0]
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 + 0x4ffba0]
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 0x4c26ec
test cl, 0x80
je 0x4c27bc
test byte [ebp + 0x10], 2
je 0x4c26ec
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004b3877
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4c26aa
call fcn.004ab30b
cmp dword [eax], 0x83
je 0x4c26ec
push dword [esi]
call fcn.004b6783
jmp 0x4c25a4
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004ba963
add esp, 0xc
test eax, eax
jne 0x4c26dc
cmp word [ebp - 0x2c], 0x1a
jne 0x4c26dc
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004c5004
add esp, 0xc
cmp eax, edi
je 0x4c269e
push ebx
push ebx
push dword [esi]
call fcn.004b3877
add esp, 0xc
cmp eax, edi
je 0x4c269e
test byte [ebp - 1], 0x80
je 0x4c27bc
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4c2714
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4c2711
or dword [ebp + 0x10], edi
jmp 0x4c2714
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4c2761
cmp eax, 0x10000
je 0x4c274d
cmp eax, 0x14000
je 0x4c274d
cmp eax, 0x20000
je 0x4c275b
cmp eax, 0x24000
je 0x4c275b
cmp eax, 0x40000
je 0x4c2747
cmp eax, 0x44000
jne 0x4c2764
mov byte [ebp - 2], 1
jmp 0x4c2764
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4c2764
mov byte [ebp - 2], 2
jmp 0x4c2764
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4c27bc
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4c27bc
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4c2916
cmp eax, 0x80000000
je 0x4c28dd
cmp eax, ecx
jne 0x4c27bc
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4c27bc
cmp eax, 2
jbe 0x4c29be
cmp eax, 4
jbe 0x4c28af
cmp eax, 5
je 0x4c29be
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ffba0]
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 + 0x4ffba0]
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 0x4c282e
test byte [ebp + 0x10], 8
je 0x4c282e
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ffba0]
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 0x4c2a3d
test byte [ebp + 0x10], 1
je 0x4c2a3d
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 0x4c2a26
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004ab31e
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ffba0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004c07ca
pop ecx
jmp 0x4c25a4
push 2
push ebx
push ebx
push dword [esi]
call fcn.004ba2b6
add esp, 0x10
or eax, edx
je 0x4c29be
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004ba2b6
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4c269e
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004ba963
add esp, 0xc
cmp eax, 0xffffffff
je 0x4c269e
cmp eax, 2
je 0x4c2962
cmp eax, 3
jne 0x4c29b0
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4c2962
mov byte [ebp - 2], 1
jmp 0x4c27bc
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4c27bc
cmp eax, 2
jbe 0x4c29be
cmp eax, 4
ja 0x4c27b3
push 2
push ebx
push ebx
push dword [esi]
call fcn.004ba2b6
add esp, 0x10
or eax, edx
je 0x4c29be
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004ba2b6
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4c27bc
jmp 0x4c269e
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4c298a
push dword [esi]
call fcn.004b6783
pop ecx
call fcn.004ab2f8
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4c2a3f
cmp eax, 0xfeff
jne 0x4c29b0
push ebx
push 2
push dword [esi]
call fcn.004b3877
add esp, 0xc
cmp eax, 0xffffffff
je 0x4c269e
mov byte [ebp - 2], 2
jmp 0x4c27bc
push ebx
push ebx
push dword [esi]
call fcn.004b3877
add esp, 0xc
jmp 0x4c2954
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4c29de
dec eax
jne 0x4c27bc
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4c29ec
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.004b3f8b
add esp, 0xc
cmp eax, 0xffffffff
je 0x4c2a12
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4c29ec
jmp 0x4c27bc
push dword [esi]
call fcn.004b6783
pop ecx
call fcn.004ab2f8
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4c2a3f
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ffba0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret