Function at 0x431ff1
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 0x432020
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x43202a
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00434cee
test eax, eax
pop ecx
je 0x432045
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00421c14
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00426340
test eax, eax
pop ecx
je 0x432060
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00421c14
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x43207d
test ecx, 0x74000
jne 0x432079
cmp dword [ebp - 0x24], eax
je 0x43207d
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, connect
je 0x4320d7
dec eax
je 0x4320c1
dec eax
je 0x4320bc
call fcn.0042404d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042403a
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00421d10
add esp, 0x14
jmp 0x432689
mov dword [ebp - 8], edx
jmp 0x4320da
test cl, 8
je 0x4320ce
test ecx, 0x70000
jne 0x4320bc
mov dword [ebp - 8], 0x40000000
jmp 0x4320da
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x43211b
sub eax, ecx
je 0x432112
sub eax, ecx
je 0x432109
sub eax, ecx
je 0x432100
sub eax, 0x40
jne 0x432096
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x43211e
mov dword [ebp - 0x10], 3
jmp 0x43211e
mov dword [ebp - 0x10], 2
jmp 0x43211e
mov dword [ebp - 0x10], 1
jmp 0x43211e
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 0x432171
je 0x432168
cmp eax, ebx
je 0x432168
cmp eax, edi
je 0x43215f
cmp eax, 0x200
je 0x4321e4
cmp eax, 0x300
jne 0x432096
mov dword [ebp - 0x14], 2
jmp 0x43218e
mov dword [ebp - 0x14], 4
jmp 0x43218e
mov dword [ebp - 0x14], 3
jmp 0x43218e
cmp eax, 0x500
je 0x432187
cmp eax, 0x600
je 0x4321e4
cmp eax, edx
jne 0x432096
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4321b2
mov ecx, dword [0x453dd8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4321b2
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4321ce
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4321ce
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4321d7
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4321ed
or dword [ebp - 0xc], 0x8000000
jmp 0x4321f8
mov dword [ebp - 0x14], 5
jmp 0x43218e
test al, 0x10
je 0x4321f8
or dword [ebp - 0xc], 0x10000000
call fcn.00431cd2
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x43221e
call fcn.0042404d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042403a
mov dword [eax], 0x18
jmp 0x4322ac
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 0x4322b8
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x432284
test byte [ebp + 0x10], 1
je 0x432284
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 0x4322b8
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x454900]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00424060
pop ecx
call fcn.0042403a
mov eax, dword [eax]
jmp 0x432745
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x432309
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x454900]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00424060
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4322ac
call fcn.0042403a
mov dword [eax], 0xd
jmp 0x4322ac
cmp eax, 2
jne 0x432314
or byte [ebp - 1], 0x40
jmp 0x43231d
cmp eax, 3
jne 0x43231d
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00431aa1
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x454900]
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 + 0x454900]
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 0x4323f2
test cl, 0x80
je 0x4324c2
test byte [ebp + 0x10], 2
je 0x4323f2
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00434bc0
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4323b1
call fcn.0042404d
cmp dword [eax], 0x83
je 0x4323f2
push dword [esi]
call fcn.0042bc20
jmp 0x4322ab
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0042d452
add esp, 0xc
test eax, eax
jne 0x4323e2
cmp byte [ebp - 4], 0x1a
jne 0x4323e2
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00434a0c
add esp, 0xc
cmp eax, edi
je 0x4323a5
push ebx
push ebx
push dword [esi]
call fcn.00434bc0
add esp, 0xc
cmp eax, edi
je 0x4323a5
test byte [ebp - 1], 0x80
je 0x4324c2
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x43241a
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x432417
or dword [ebp + 0x10], edi
jmp 0x43241a
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x432467
cmp eax, 0x10000
je 0x432453
cmp eax, 0x14000
je 0x432453
cmp eax, 0x20000
je 0x432461
cmp eax, 0x24000
je 0x432461
cmp eax, 0x40000
je 0x43244d
cmp eax, 0x44000
jne 0x43246a
mov byte [ebp - 2], 1
jmp 0x43246a
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x43246a
mov byte [ebp - 2], 2
jmp 0x43246a
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4324c2
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4324c2
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x43261c
cmp eax, 0x80000000
je 0x4325e3
cmp eax, ecx
jne 0x4324c2
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4324c2
cmp eax, 2
jbe 0x4326c4
cmp eax, 4
jbe 0x4325b5
cmp eax, 5
je 0x4326c4
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x454900]
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 + 0x454900]
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 0x432534
test byte [ebp + 0x10], 8
je 0x432534
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x454900]
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 0x432743
test byte [ebp + 0x10], 1
je 0x432743
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 0x43272c
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00424060
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x454900]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00431b1e
pop ecx
jmp 0x4322ab
push 2
push ebx
push ebx
push dword [esi]
call fcn.004307e9
add esp, 0x10
or eax, edx
je 0x4326c4
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004307e9
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4323a5
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0042d452
add esp, 0xc
cmp eax, 0xffffffff
je 0x4323a5
cmp eax, 2
je 0x432668
cmp eax, 3
jne 0x4326b6
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x432668
mov byte [ebp - 2], 1
jmp 0x4324c2
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4324c2
cmp eax, 2
jbe 0x4326c4
cmp eax, 4
ja 0x4324b9
push 2
push ebx
push ebx
push dword [esi]
call fcn.004307e9
add esp, 0x10
or eax, edx
je 0x4326c4
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004307e9
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4324c2
jmp 0x4323a5
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x432690
push dword [esi]
call fcn.0042bc20
pop ecx
call fcn.0042403a
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x432745
cmp eax, 0xfeff
jne 0x4326b6
push ebx
push 2
push dword [esi]
call fcn.00434bc0
add esp, 0xc
cmp eax, 0xffffffff
je 0x4323a5
mov byte [ebp - 2], 2
jmp 0x4324c2
push ebx
push ebx
push dword [esi]
call fcn.00434bc0
add esp, 0xc
jmp 0x43265a
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4326e4
dec eax
jne 0x4324c2
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4326f2
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.0042dfd9
add esp, 0xc
cmp eax, 0xffffffff
je 0x432718
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4326f2
jmp 0x4324c2
push dword [esi]
call fcn.0042bc20
pop ecx
call fcn.0042403a
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x432745
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x454900]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret