Function at 0x430f1d
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 0x430f4c
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x430f56
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004336fa
test eax, eax
pop ecx
je 0x430f71
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00421eaa
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00423326
test eax, eax
pop ecx
je 0x430f8c
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00421eaa
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x430fa9
test ecx, 0x74000
jne 0x430fa5
cmp dword [ebp - 0x24], eax
je 0x430fa9
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x431003
dec eax
je 0x430fed
dec eax
je 0x430fe8
call fcn.004239b9
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004239a6
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00421fa6
add esp, 0x14
jmp 0x4315b5
mov dword [ebp - 8], edx
jmp 0x431006
test cl, 8
je 0x430ffa
test ecx, 0x70000
jne 0x430fe8
mov dword [ebp - 8], 0x40000000
jmp 0x431006
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x431047
sub eax, ecx
je 0x43103e
sub eax, ecx
je 0x431035
sub eax, ecx
je 0x43102c
sub eax, 0x40
jne 0x430fc2
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x43104a
mov dword [ebp - 0x10], 3
jmp 0x43104a
mov dword [ebp - 0x10], 2
jmp 0x43104a
mov dword [ebp - 0x10], 1
jmp 0x43104a
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 0x43109d
je 0x431094
cmp eax, ebx
je 0x431094
cmp eax, edi
je 0x43108b
cmp eax, 0x200
je 0x431110
cmp eax, 0x300
jne 0x430fc2
mov dword [ebp - 0x14], 2
jmp 0x4310ba
mov dword [ebp - 0x14], 4
jmp 0x4310ba
mov dword [ebp - 0x14], 3
jmp 0x4310ba
cmp eax, 0x500
je 0x4310b3
cmp eax, 0x600
je 0x431110
cmp eax, edx
jne 0x430fc2
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4310de
mov ecx, dword [0x44e9c4]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4310de
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4310fa
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4310fa
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x431103
or dword [ebp - 0xc], edi
test al, 0x20
je 0x431119
or dword [ebp - 0xc], 0x8000000
jmp 0x431124
mov dword [ebp - 0x14], 5
jmp 0x4310ba
test al, 0x10
je 0x431124
or dword [ebp - 0xc], 0x10000000
call fcn.00430bfe
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x43114a
call fcn.004239b9
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004239a6
mov dword [eax], 0x18
jmp 0x4311d8
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 0x4311e4
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4311b0
test byte [ebp + 0x10], 1
je 0x4311b0
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 0x4311e4
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x44f520]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004239cc
pop ecx
call fcn.004239a6
mov eax, dword [eax]
jmp 0x431671
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x431235
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x44f520]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004239cc
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4311d8
call fcn.004239a6
mov dword [eax], 0xd
jmp 0x4311d8
cmp eax, 2
jne 0x431240
or byte [ebp - 1], 0x40
jmp 0x431249
cmp eax, 3
jne 0x431249
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004309cd
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x44f520]
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 + 0x44f520]
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 0x43131e
test cl, 0x80
je 0x4313ee
test byte [ebp + 0x10], 2
je 0x43131e
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00427174
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4312dd
call fcn.004239b9
cmp dword [eax], 0x83
je 0x43131e
push dword [esi]
call fcn.00426c92
jmp 0x4311d7
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00427b47
add esp, 0xc
test eax, eax
jne 0x43130e
cmp byte [ebp - 4], 0x1a
jne 0x43130e
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0043348a
add esp, 0xc
cmp eax, edi
je 0x4312d1
push ebx
push ebx
push dword [esi]
call fcn.00427174
add esp, 0xc
cmp eax, edi
je 0x4312d1
test byte [ebp - 1], 0x80
je 0x4313ee
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x431346
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x431343
or dword [ebp + 0x10], edi
jmp 0x431346
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x431393
cmp eax, 0x10000
je 0x43137f
cmp eax, 0x14000
je 0x43137f
cmp eax, 0x20000
je 0x43138d
cmp eax, 0x24000
je 0x43138d
cmp eax, 0x40000
je 0x431379
cmp eax, 0x44000
jne 0x431396
mov byte [ebp - 2], 1
jmp 0x431396
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x431396
mov byte [ebp - 2], 2
jmp 0x431396
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4313ee
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4313ee
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x431548
cmp eax, 0x80000000
je 0x43150f
cmp eax, ecx
jne 0x4313ee
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4313ee
cmp eax, 2
jbe 0x4315f0
cmp eax, 4
jbe 0x4314e1
cmp eax, 5
je 0x4315f0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44f520]
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 + 0x44f520]
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 0x431460
test byte [ebp + 0x10], 8
je 0x431460
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44f520]
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 0x43166f
test byte [ebp + 0x10], 1
je 0x43166f
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 0x431658
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004239cc
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44f520]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00430a4a
pop ecx
jmp 0x4311d7
push 2
push ebx
push ebx
push dword [esi]
call fcn.00431b0b
add esp, 0x10
or eax, edx
je 0x4315f0
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00431b0b
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4312d1
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00427b47
add esp, 0xc
cmp eax, 0xffffffff
je 0x4312d1
cmp eax, 2
je 0x431594
cmp eax, 3
jne 0x4315e2
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x431594
mov byte [ebp - 2], 1
jmp 0x4313ee
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4313ee
cmp eax, 2
jbe 0x4315f0
cmp eax, 4
ja 0x4313e5
push 2
push ebx
push ebx
push dword [esi]
call fcn.00431b0b
add esp, 0x10
or eax, edx
je 0x4315f0
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00431b0b
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4313ee
jmp 0x4312d1
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4315bc
push dword [esi]
call fcn.00426c92
pop ecx
call fcn.004239a6
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x431671
cmp eax, 0xfeff
jne 0x4315e2
push ebx
push 2
push dword [esi]
call fcn.00427174
add esp, 0xc
cmp eax, 0xffffffff
je 0x4312d1
mov byte [ebp - 2], 2
jmp 0x4313ee
push ebx
push ebx
push dword [esi]
call fcn.00427174
add esp, 0xc
jmp 0x431586
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x431610
dec eax
jne 0x4313ee
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x43161e
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.0042892b
add esp, 0xc
cmp eax, 0xffffffff
je 0x431644
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x43161e
jmp 0x4313ee
push dword [esi]
call fcn.00426c92
pop ecx
call fcn.004239a6
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x431671
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44f520]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret