Function at 0x42ba63
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 0x42ba92
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x42ba9c
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0042d951
test eax, eax
pop ecx
je 0x42bab7
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004195f9
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0042097a
test eax, eax
pop ecx
je 0x42bad2
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004195f9
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x42baef
test ecx, 0x74000
jne 0x42baeb
cmp dword [ebp - 0x24], eax
je 0x42baef
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x42bb49
dec eax
je 0x42bb33
dec eax
je 0x42bb2e
call fcn.0041b1b4
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041b1a1
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004196f5
add esp, 0x14
jmp 0x42c0fb
mov dword [ebp - 8], edx
jmp 0x42bb4c
test cl, 8
je 0x42bb40
test ecx, 0x70000
jne 0x42bb2e
mov dword [ebp - 8], 0x40000000
jmp 0x42bb4c
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x42bb8d
sub eax, ecx
je 0x42bb84
sub eax, ecx
je 0x42bb7b
sub eax, ecx
je 0x42bb72
sub eax, 0x40
jne 0x42bb08
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x42bb90
mov dword [ebp - 0x10], 3
jmp 0x42bb90
mov dword [ebp - 0x10], 2
jmp 0x42bb90
mov dword [ebp - 0x10], 1
jmp 0x42bb90
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 0x42bbe3
je 0x42bbda
cmp eax, ebx
je 0x42bbda
cmp eax, edi
je 0x42bbd1
cmp eax, 0x200
je 0x42bc56
cmp eax, 0x300
jne 0x42bb08
mov dword [ebp - 0x14], 2
jmp 0x42bc00
mov dword [ebp - 0x14], 4
jmp 0x42bc00
mov dword [ebp - 0x14], 3
jmp 0x42bc00
cmp eax, 0x500
je 0x42bbf9
cmp eax, 0x600
je 0x42bc56
cmp eax, edx
jne 0x42bb08
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x42bc24
mov ecx, dword [0x44400c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x42bc24
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x42bc40
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x42bc40
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x42bc49
or dword [ebp - 0xc], edi
test al, 0x20
je 0x42bc5f
or dword [ebp - 0xc], 0x8000000
jmp 0x42bc6a
mov dword [ebp - 0x14], 5
jmp 0x42bc00
test al, 0x10
je 0x42bc6a
or dword [ebp - 0xc], 0x10000000
call fcn.00429bd3
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x42bc90
call fcn.0041b1b4
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041b1a1
mov dword [eax], 0x18
jmp 0x42bd1e
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 0x42bd2a
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x42bcf6
test byte [ebp + 0x10], 1
je 0x42bcf6
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 0x42bd2a
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x444e00]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0041b1c7
pop ecx
call fcn.0041b1a1
mov eax, dword [eax]
jmp 0x42c1b7
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x42bd7b
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x444e00]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0041b1c7
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x42bd1e
call fcn.0041b1a1
mov dword [eax], 0xd
jmp 0x42bd1e
cmp eax, 2
jne 0x42bd86
or byte [ebp - 1], 0x40
jmp 0x42bd8f
cmp eax, 3
jne 0x42bd8f
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004299a2
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x444e00]
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 + 0x444e00]
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 0x42be64
test cl, 0x80
je 0x42bf34
test byte [ebp + 0x10], 2
je 0x42be64
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00424cc0
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x42be23
call fcn.0041b1b4
cmp dword [eax], 0x83
je 0x42be64
push dword [esi]
call fcn.00423071
jmp 0x42bd1d
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0042a1f7
add esp, 0xc
test eax, eax
jne 0x42be54
cmp byte [ebp - 4], 0x1a
jne 0x42be54
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0042d6e1
add esp, 0xc
cmp eax, edi
je 0x42be17
push ebx
push ebx
push dword [esi]
call fcn.00424cc0
add esp, 0xc
cmp eax, edi
je 0x42be17
test byte [ebp - 1], 0x80
je 0x42bf34
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x42be8c
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x42be89
or dword [ebp + 0x10], edi
jmp 0x42be8c
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x42bed9
cmp eax, 0x10000
je 0x42bec5
cmp eax, 0x14000
je 0x42bec5
cmp eax, 0x20000
je 0x42bed3
cmp eax, 0x24000
je 0x42bed3
cmp eax, 0x40000
je 0x42bebf
cmp eax, 0x44000
jne 0x42bedc
mov byte [ebp - 2], 1
jmp 0x42bedc
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x42bedc
mov byte [ebp - 2], 2
jmp 0x42bedc
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x42bf34
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x42bf34
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x42c08e
cmp eax, 0x80000000
je 0x42c055
cmp eax, ecx
jne 0x42bf34
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42bf34
cmp eax, 2
jbe 0x42c136
cmp eax, 4
jbe 0x42c027
cmp eax, 5
je 0x42c136
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x444e00]
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 + 0x444e00]
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 0x42bfa6
test byte [ebp + 0x10], 8
je 0x42bfa6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x444e00]
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 0x42c1b5
test byte [ebp + 0x10], 1
je 0x42c1b5
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 0x42c19e
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0041b1c7
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x444e00]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00429a1f
pop ecx
jmp 0x42bd1d
push 2
push ebx
push ebx
push dword [esi]
call fcn.00429e11
add esp, 0x10
or eax, edx
je 0x42c136
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00429e11
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x42be17
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0042a1f7
add esp, 0xc
cmp eax, 0xffffffff
je 0x42be17
cmp eax, 2
je 0x42c0da
cmp eax, 3
jne 0x42c128
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x42c0da
mov byte [ebp - 2], 1
jmp 0x42bf34
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42bf34
cmp eax, 2
jbe 0x42c136
cmp eax, 4
ja 0x42bf2b
push 2
push ebx
push ebx
push dword [esi]
call fcn.00429e11
add esp, 0x10
or eax, edx
je 0x42c136
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00429e11
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x42bf34
jmp 0x42be17
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x42c102
push dword [esi]
call fcn.00423071
pop ecx
call fcn.0041b1a1
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x42c1b7
cmp eax, 0xfeff
jne 0x42c128
push ebx
push 2
push dword [esi]
call fcn.00424cc0
add esp, 0xc
cmp eax, 0xffffffff
je 0x42be17
mov byte [ebp - 2], 2
jmp 0x42bf34
push ebx
push ebx
push dword [esi]
call fcn.00424cc0
add esp, 0xc
jmp 0x42c0cc
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x42c156
dec eax
jne 0x42bf34
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x42c164
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.00423e1a
add esp, 0xc
cmp eax, 0xffffffff
je 0x42c18a
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x42c164
jmp 0x42bf34
push dword [esi]
call fcn.00423071
pop ecx
call fcn.0041b1a1
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x42c1b7
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x444e00]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret