Function at 0x42c679
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 0x42c6a8
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x42c6b2
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0042ecf6
test eax, eax
pop ecx
je 0x42c6cd
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00420075
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004231ce
test eax, eax
pop ecx
je 0x42c6e8
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00420075
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x42c705
test ecx, 0x74000
jne 0x42c701
cmp dword [ebp - 0x24], eax
je 0x42c705
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x42c75f
dec eax
je 0x42c749
dec eax
je 0x42c744
call fcn.00422399
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00422386
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00420171
add esp, 0x14
jmp 0x42cd12
mov dword [ebp - 8], edx
jmp 0x42c762
test cl, 8
je 0x42c756
test ecx, 0x70000
jne 0x42c744
mov dword [ebp - 8], 0x40000000
jmp 0x42c762
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x42c7a3
sub eax, ecx
je 0x42c79a
sub eax, ecx
je 0x42c791
sub eax, ecx
je 0x42c788
sub eax, 0x40
jne 0x42c71e
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x42c7a6
mov dword [ebp - 0x10], 3
jmp 0x42c7a6
mov dword [ebp - 0x10], 2
jmp 0x42c7a6
mov dword [ebp - 0x10], 1
jmp 0x42c7a6
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 0x42c7f9
je 0x42c7f0
cmp eax, ebx
je 0x42c7f0
cmp eax, edi
je 0x42c7e7
cmp eax, 0x200
je 0x42c86c
cmp eax, 0x300
jne 0x42c71e
mov dword [ebp - 0x14], 2
jmp 0x42c816
mov dword [ebp - 0x14], 4
jmp 0x42c816
mov dword [ebp - 0x14], 3
jmp 0x42c816
cmp eax, 0x500
je 0x42c80f
cmp eax, 0x600
je 0x42c86c
cmp eax, edx
jne 0x42c71e
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x42c83a
mov ecx, dword [0x445c80]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x42c83a
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x42c856
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x42c856
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x42c85f
or dword [ebp - 0xc], edi
test al, 0x20
je 0x42c875
or dword [ebp - 0xc], 0x8000000
jmp 0x42c880
mov dword [ebp - 0x14], 5
jmp 0x42c816
test al, 0x10
je 0x42c880
or dword [ebp - 0xc], 0x10000000
call fcn.0042d25c
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x42c8a6
call fcn.00422399
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00422386
mov dword [eax], 0x18
jmp 0x42c934
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 0x42c940
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x42c90c
test byte [ebp + 0x10], 1
je 0x42c90c
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 0x42c940
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x446580]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004223ac
pop ecx
call fcn.00422386
mov eax, dword [eax]
jmp 0x42cdce
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x42c991
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x446580]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004223ac
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x42c934
call fcn.00422386
mov dword [eax], 0xd
jmp 0x42c934
cmp eax, 2
jne 0x42c99c
or byte [ebp - 1], 0x40
jmp 0x42c9a5
cmp eax, 3
jne 0x42c9a5
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0042d02b
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x446580]
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 + 0x446580]
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 0x42ca7b
test cl, 0x80
je 0x42cb4b
test byte [ebp + 0x10], 2
je 0x42ca7b
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0042eaec
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x42ca39
call fcn.00422399
cmp dword [eax], 0x83
je 0x42ca7b
push dword [esi]
call fcn.00425e57
jmp 0x42c933
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004274e5
add esp, 0xc
test eax, eax
jne 0x42ca6b
cmp word [ebp - 0x2c], 0x1a
jne 0x42ca6b
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0042e938
add esp, 0xc
cmp eax, edi
je 0x42ca2d
push ebx
push ebx
push dword [esi]
call fcn.0042eaec
add esp, 0xc
cmp eax, edi
je 0x42ca2d
test byte [ebp - 1], 0x80
je 0x42cb4b
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x42caa3
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x42caa0
or dword [ebp + 0x10], edi
jmp 0x42caa3
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x42caf0
cmp eax, 0x10000
je 0x42cadc
cmp eax, 0x14000
je 0x42cadc
cmp eax, 0x20000
je 0x42caea
cmp eax, 0x24000
je 0x42caea
cmp eax, 0x40000
je 0x42cad6
cmp eax, 0x44000
jne 0x42caf3
mov byte [ebp - 2], 1
jmp 0x42caf3
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x42caf3
mov byte [ebp - 2], 2
jmp 0x42caf3
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x42cb4b
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x42cb4b
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x42cca5
cmp eax, 0x80000000
je 0x42cc6c
cmp eax, ecx
jne 0x42cb4b
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42cb4b
cmp eax, 2
jbe 0x42cd4d
cmp eax, 4
jbe 0x42cc3e
cmp eax, 5
je 0x42cd4d
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x446580]
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 + 0x446580]
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 0x42cbbd
test byte [ebp + 0x10], 8
je 0x42cbbd
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x446580]
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 0x42cdcc
test byte [ebp + 0x10], 1
je 0x42cdcc
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 0x42cdb5
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004223ac
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x446580]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0042d0a8
pop ecx
jmp 0x42c933
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042bf8b
add esp, 0x10
or eax, edx
je 0x42cd4d
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042bf8b
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x42ca2d
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004274e5
add esp, 0xc
cmp eax, 0xffffffff
je 0x42ca2d
cmp eax, 2
je 0x42ccf1
cmp eax, 3
jne 0x42cd3f
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x42ccf1
mov byte [ebp - 2], 1
jmp 0x42cb4b
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42cb4b
cmp eax, 2
jbe 0x42cd4d
cmp eax, 4
ja 0x42cb42
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042bf8b
add esp, 0x10
or eax, edx
je 0x42cd4d
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042bf8b
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x42cb4b
jmp 0x42ca2d
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x42cd19
push dword [esi]
call fcn.00425e57
pop ecx
call fcn.00422386
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x42cdce
cmp eax, 0xfeff
jne 0x42cd3f
push ebx
push 2
push dword [esi]
call fcn.0042eaec
add esp, 0xc
cmp eax, 0xffffffff
je 0x42ca2d
mov byte [ebp - 2], 2
jmp 0x42cb4b
push ebx
push ebx
push dword [esi]
call fcn.0042eaec
add esp, 0xc
jmp 0x42cce3
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x42cd6d
dec eax
jne 0x42cb4b
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x42cd7b
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.004267b1
add esp, 0xc
cmp eax, 0xffffffff
je 0x42cda1
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x42cd7b
jmp 0x42cb4b
push dword [esi]
call fcn.00425e57
pop ecx
call fcn.00422386
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x42cdce
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x446580]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret