Function at 0x43400e
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 0x43403d
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x434047
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00436a80
test eax, eax
pop ecx
je 0x434062
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004216eb
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0042c0b6
test eax, eax
pop ecx
je 0x43407d
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004216eb
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x43409a
test ecx, 0x74000
jne 0x434096
cmp dword [ebp - 0x24], eax
je 0x43409a
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x4340f4
dec eax
je 0x4340de
dec eax
je 0x4340d9
call fcn.0042484e
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042483b
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004217e7
add esp, 0x14
jmp 0x4346a7
mov dword [ebp - 8], edx
jmp 0x4340f7
test cl, 8
je 0x4340eb
test ecx, 0x70000
jne 0x4340d9
mov dword [ebp - 8], 0x40000000
jmp 0x4340f7
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x434138
sub eax, ecx
je 0x43412f
sub eax, ecx
je 0x434126
sub eax, ecx
je 0x43411d
sub eax, 0x40
jne 0x4340b3
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x43413b
mov dword [ebp - 0x10], 3
jmp 0x43413b
mov dword [ebp - 0x10], 2
jmp 0x43413b
mov dword [ebp - 0x10], 1
jmp 0x43413b
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 0x43418e
je 0x434185
cmp eax, ebx
je 0x434185
cmp eax, edi
je 0x43417c
cmp eax, 0x200
je 0x434201
cmp eax, 0x300
jne 0x4340b3
mov dword [ebp - 0x14], 2
jmp 0x4341ab
mov dword [ebp - 0x14], 4
jmp 0x4341ab
mov dword [ebp - 0x14], 3
jmp 0x4341ab
cmp eax, 0x500
je 0x4341a4
cmp eax, 0x600
je 0x434201
cmp eax, edx
jne 0x4340b3
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4341cf
mov ecx, dword [0x46ce04]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4341cf
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4341eb
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4341eb
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4341f4
or dword [ebp - 0xc], edi
test al, 0x20
je 0x43420a
or dword [ebp - 0xc], 0x8000000
jmp 0x434215
mov dword [ebp - 0x14], 5
jmp 0x4341ab
test al, 0x10
je 0x434215
or dword [ebp - 0xc], 0x10000000
call fcn.004335d4
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x43423b
call fcn.0042484e
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042483b
mov dword [eax], 0x18
jmp 0x4342c9
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 0x4342d5
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4342a1
test byte [ebp + 0x10], 1
je 0x4342a1
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 0x4342d5
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x46e680]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00424861
pop ecx
call fcn.0042483b
mov eax, dword [eax]
jmp 0x434763
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x434326
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x46e680]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00424861
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x4342c9
call fcn.0042483b
mov dword [eax], 0xd
jmp 0x4342c9
cmp eax, 2
jne 0x434331
or byte [ebp - 1], 0x40
jmp 0x43433a
cmp eax, 3
jne 0x43433a
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004333a3
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x46e680]
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 + 0x46e680]
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 0x434410
test cl, 0x80
je 0x4344e0
test byte [ebp + 0x10], 2
je 0x434410
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0042ba15
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4343ce
call fcn.0042484e
cmp dword [eax], 0x83
je 0x434410
push dword [esi]
call fcn.00428af1
jmp 0x4342c8
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.0042965f
add esp, 0xc
test eax, eax
jne 0x434400
cmp word [ebp - 0x2c], 0x1a
jne 0x434400
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00436810
add esp, 0xc
cmp eax, edi
je 0x4343c2
push ebx
push ebx
push dword [esi]
call fcn.0042ba15
add esp, 0xc
cmp eax, edi
je 0x4343c2
test byte [ebp - 1], 0x80
je 0x4344e0
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x434438
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x434435
or dword [ebp + 0x10], edi
jmp 0x434438
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x434485
cmp eax, 0x10000
je 0x434471
cmp eax, 0x14000
je 0x434471
cmp eax, 0x20000
je 0x43447f
cmp eax, 0x24000
je 0x43447f
cmp eax, 0x40000
je 0x43446b
cmp eax, 0x44000
jne 0x434488
mov byte [ebp - 2], 1
jmp 0x434488
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x434488
mov byte [ebp - 2], 2
jmp 0x434488
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4344e0
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4344e0
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x43463a
cmp eax, 0x80000000
je 0x434601
cmp eax, ecx
jne 0x4344e0
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4344e0
cmp eax, 2
jbe 0x4346e2
cmp eax, 4
jbe 0x4345d3
cmp eax, 5
je 0x4346e2
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x46e680]
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 + 0x46e680]
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 0x434552
test byte [ebp + 0x10], 8
je 0x434552
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x46e680]
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 0x434761
test byte [ebp + 0x10], 1
je 0x434761
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 0x43474a
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00424861
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x46e680]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00433420
pop ecx
jmp 0x4342c8
push 2
push ebx
push ebx
push dword [esi]
call fcn.00433b58
add esp, 0x10
or eax, edx
je 0x4346e2
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00433b58
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4343c2
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0042965f
add esp, 0xc
cmp eax, 0xffffffff
je 0x4343c2
cmp eax, 2
je 0x434686
cmp eax, 3
jne 0x4346d4
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x434686
mov byte [ebp - 2], 1
jmp 0x4344e0
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4344e0
cmp eax, 2
jbe 0x4346e2
cmp eax, 4
ja 0x4344d7
push 2
push ebx
push ebx
push dword [esi]
call fcn.00433b58
add esp, 0x10
or eax, edx
je 0x4346e2
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00433b58
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4344e0
jmp 0x4343c2
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4346ae
push dword [esi]
call fcn.00428af1
pop ecx
call fcn.0042483b
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x434763
cmp eax, 0xfeff
jne 0x4346d4
push ebx
push 2
push dword [esi]
call fcn.0042ba15
add esp, 0xc
cmp eax, 0xffffffff
je 0x4343c2
mov byte [ebp - 2], 2
jmp 0x4344e0
push ebx
push ebx
push dword [esi]
call fcn.0042ba15
add esp, 0xc
jmp 0x434678
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x434702
dec eax
jne 0x4344e0
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x434710
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.0042d978
add esp, 0xc
cmp eax, 0xffffffff
je 0x434736
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x434710
jmp 0x4344e0
push dword [esi]
call fcn.00428af1
pop ecx
call fcn.0042483b
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x434763
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x46e680]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret