Function at 0x1543c2a
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 0x1543c59
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x1543c63
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0154bce6
test eax, eax
pop ecx
je 0x1543c7e
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0152d65b
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0153204a
test eax, eax
pop ecx
je 0x1543c99
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0152d65b
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x1543cb6
test ecx, 0x74000
jne 0x1543cb2
cmp dword [ebp - 0x24], eax
je 0x1543cb6
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, connect
je 0x1543d10
dec eax
je 0x1543cfa
dec eax
je 0x1543cf5
call fcn.01530343
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.01530330
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0152d78f
add esp, 0x14
jmp 0x15442c2
mov dword [ebp - 8], edx
jmp 0x1543d13
test cl, 8
je 0x1543d07
test ecx, 0x70000
jne 0x1543cf5
mov dword [ebp - 8], 0x40000000
jmp 0x1543d13
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x1543d54
sub eax, ecx
je 0x1543d4b
sub eax, ecx
je 0x1543d42
sub eax, ecx
je 0x1543d39
sub eax, 0x40
jne 0x1543ccf
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x1543d57
mov dword [ebp - 0x10], 3
jmp 0x1543d57
mov dword [ebp - 0x10], 2
jmp 0x1543d57
mov dword [ebp - 0x10], 1
jmp 0x1543d57
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 0x1543daa
je 0x1543da1
cmp eax, ebx
je 0x1543da1
cmp eax, edi
je 0x1543d98
cmp eax, 0x200
je 0x1543e1d
cmp eax, 0x300
jne 0x1543ccf
mov dword [ebp - 0x14], 2
jmp 0x1543dc7
mov dword [ebp - 0x14], 4
jmp 0x1543dc7
mov dword [ebp - 0x14], 3
jmp 0x1543dc7
cmp eax, 0x500
je 0x1543dc0
cmp eax, 0x600
je 0x1543e1d
cmp eax, edx
jne 0x1543ccf
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x1543deb
mov ecx, dword [0x15f1bd0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x1543deb
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x1543e07
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x1543e07
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x1543e10
or dword [ebp - 0xc], edi
test al, 0x20
je 0x1543e26
or dword [ebp - 0xc], 0x8000000
jmp 0x1543e31
mov dword [ebp - 0x14], 5
jmp 0x1543dc7
test al, 0x10
je 0x1543e31
or dword [ebp - 0xc], 0x10000000
call fcn.01543138
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x1543e57
call fcn.01530343
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.01530330
mov dword [eax], 0x18
jmp 0x1543ee5
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 0x1543ef1
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x1543ebd
test byte [ebp + 0x10], 1
je 0x1543ebd
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 0x1543ef1
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x15f33a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.01530356
pop ecx
call fcn.01530330
mov eax, dword [eax]
jmp 0x154437e
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x1543f42
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x15f33a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.01530356
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x1543ee5
call fcn.01530330
mov dword [eax], 0xd
jmp 0x1543ee5
cmp eax, 2
jne 0x1543f4d
or byte [ebp - 1], 0x40
jmp 0x1543f56
cmp eax, 3
jne 0x1543f56
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.01542f07
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x15f33a0]
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 + 0x15f33a0]
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 0x154402b
test cl, 0x80
je 0x15440fb
test byte [ebp + 0x10], 2
je 0x154402b
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0154ba96
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x1543fea
call fcn.01530343
cmp dword [eax], 0x83
je 0x154402b
push dword [esi]
call fcn.01534008
jmp 0x1543ee4
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0154356c
add esp, 0xc
test eax, eax
jne 0x154401b
cmp byte [ebp - 4], 0x1a
jne 0x154401b
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0154b7dd
add esp, 0xc
cmp eax, edi
je 0x1543fde
push ebx
push ebx
push dword [esi]
call fcn.0154ba96
add esp, 0xc
cmp eax, edi
je 0x1543fde
test byte [ebp - 1], 0x80
je 0x15440fb
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x1544053
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x1544050
or dword [ebp + 0x10], edi
jmp 0x1544053
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x15440a0
cmp eax, 0x10000
je 0x154408c
cmp eax, 0x14000
je 0x154408c
cmp eax, 0x20000
je 0x154409a
cmp eax, 0x24000
je 0x154409a
cmp eax, 0x40000
je 0x1544086
cmp eax, 0x44000
jne 0x15440a3
mov byte [ebp - 2], 1
jmp 0x15440a3
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x15440a3
mov byte [ebp - 2], 2
jmp 0x15440a3
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x15440fb
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x15440fb
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x1544255
cmp eax, 0x80000000
je 0x154421c
cmp eax, ecx
jne 0x15440fb
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x15440fb
cmp eax, 2
jbe 0x15442fd
cmp eax, 4
jbe 0x15441ee
cmp eax, 5
je 0x15442fd
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x15f33a0]
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 + 0x15f33a0]
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 0x154416d
test byte [ebp + 0x10], 8
je 0x154416d
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x15f33a0]
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 0x154437c
test byte [ebp + 0x10], 1
je 0x154437c
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 0x1544365
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.01530356
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x15f33a0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.01542f84
pop ecx
jmp 0x1543ee4
push 2
push ebx
push ebx
push dword [esi]
call fcn.0153f2c8
add esp, 0x10
or eax, edx
je 0x15442fd
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0153f2c8
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x1543fde
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0154356c
add esp, 0xc
cmp eax, 0xffffffff
je 0x1543fde
cmp eax, 2
je 0x15442a1
cmp eax, 3
jne 0x15442ef
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x15442a1
mov byte [ebp - 2], 1
jmp 0x15440fb
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x15440fb
cmp eax, 2
jbe 0x15442fd
cmp eax, 4
ja 0x15440f2
push 2
push ebx
push ebx
push dword [esi]
call fcn.0153f2c8
add esp, 0x10
or eax, edx
je 0x15442fd
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0153f2c8
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x15440fb
jmp 0x1543fde
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x15442c9
push dword [esi]
call fcn.01534008
pop ecx
call fcn.01530330
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x154437e
cmp eax, 0xfeff
jne 0x15442ef
push ebx
push 2
push dword [esi]
call fcn.0154ba96
add esp, 0xc
cmp eax, 0xffffffff
je 0x1543fde
mov byte [ebp - 2], 2
jmp 0x15440fb
push ebx
push ebx
push dword [esi]
call fcn.0154ba96
add esp, 0xc
jmp 0x1544293
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x154431d
dec eax
jne 0x15440fb
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x154432b
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.01533b84
add esp, 0xc
cmp eax, 0xffffffff
je 0x1544351
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x154432b
jmp 0x15440fb
push dword [esi]
call fcn.01534008
pop ecx
call fcn.01530330
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x154437e
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x15f33a0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret