Function at 0x42d90d
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 0x42d93c
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x42d946
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0043156b
test eax, eax
pop ecx
je 0x42d961
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00424d23
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0041fbb3
test eax, eax
pop ecx
je 0x42d97c
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00424d23
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x42d999
test ecx, 0x74000
jne 0x42d995
cmp dword [ebp - 0x24], eax
je 0x42d999
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x42d9f3
dec eax
je 0x42d9dd
dec eax
je 0x42d9d8
call fcn.0042023d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042022a
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00424e1f
add esp, 0x14
jmp 0x42dfa6
mov dword [ebp - 8], edx
jmp 0x42d9f6
test cl, 8
je 0x42d9ea
test ecx, 0x70000
jne 0x42d9d8
mov dword [ebp - 8], 0x40000000
jmp 0x42d9f6
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x42da37
sub eax, ecx
je 0x42da2e
sub eax, ecx
je 0x42da25
sub eax, ecx
je 0x42da1c
sub eax, 0x40
jne 0x42d9b2
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x42da3a
mov dword [ebp - 0x10], 3
jmp 0x42da3a
mov dword [ebp - 0x10], 2
jmp 0x42da3a
mov dword [ebp - 0x10], 1
jmp 0x42da3a
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 0x42da8d
je 0x42da84
cmp eax, ebx
je 0x42da84
cmp eax, edi
je 0x42da7b
cmp eax, 0x200
je 0x42db00
cmp eax, 0x300
jne 0x42d9b2
mov dword [ebp - 0x14], 2
jmp 0x42daaa
mov dword [ebp - 0x14], 4
jmp 0x42daaa
mov dword [ebp - 0x14], 3
jmp 0x42daaa
cmp eax, 0x500
je 0x42daa3
cmp eax, 0x600
je 0x42db00
cmp eax, edx
jne 0x42d9b2
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x42dace
mov ecx, dword [0x448a14]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x42dace
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x42daea
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x42daea
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x42daf3
or dword [ebp - 0xc], edi
test al, 0x20
je 0x42db09
or dword [ebp - 0xc], 0x8000000
jmp 0x42db14
mov dword [ebp - 0x14], 5
jmp 0x42daaa
test al, 0x10
je 0x42db14
or dword [ebp - 0xc], 0x10000000
call fcn.0042f0b6
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x42db3a
call fcn.0042023d
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042022a
mov dword [eax], 0x18
jmp 0x42dbc8
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 0x42dbd4
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x42dba0
test byte [ebp + 0x10], 1
je 0x42dba0
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 0x42dbd4
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x44a7a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00420250
pop ecx
call fcn.0042022a
mov eax, dword [eax]
jmp 0x42e062
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x42dc25
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x44a7a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00420250
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x42dbc8
call fcn.0042022a
mov dword [eax], 0xd
jmp 0x42dbc8
cmp eax, 2
jne 0x42dc30
or byte [ebp - 1], 0x40
jmp 0x42dc39
cmp eax, 3
jne 0x42dc39
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0042ee85
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x44a7a0]
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 + 0x44a7a0]
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 0x42dd0f
test cl, 0x80
je 0x42dddf
test byte [ebp + 0x10], 2
je 0x42dd0f
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00426e85
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x42dccd
call fcn.0042023d
cmp dword [eax], 0x83
je 0x42dd0f
push dword [esi]
call fcn.004267d2
jmp 0x42dbc7
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00427491
add esp, 0xc
test eax, eax
jne 0x42dcff
cmp word [ebp - 0x2c], 0x1a
jne 0x42dcff
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004312fb
add esp, 0xc
cmp eax, edi
je 0x42dcc1
push ebx
push ebx
push dword [esi]
call fcn.00426e85
add esp, 0xc
cmp eax, edi
je 0x42dcc1
test byte [ebp - 1], 0x80
je 0x42dddf
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x42dd37
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x42dd34
or dword [ebp + 0x10], edi
jmp 0x42dd37
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x42dd84
cmp eax, 0x10000
je 0x42dd70
cmp eax, 0x14000
je 0x42dd70
cmp eax, 0x20000
je 0x42dd7e
cmp eax, 0x24000
je 0x42dd7e
cmp eax, 0x40000
je 0x42dd6a
cmp eax, 0x44000
jne 0x42dd87
mov byte [ebp - 2], 1
jmp 0x42dd87
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x42dd87
mov byte [ebp - 2], 2
jmp 0x42dd87
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x42dddf
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x42dddf
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x42df39
cmp eax, 0x80000000
je 0x42df00
cmp eax, ecx
jne 0x42dddf
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42dddf
cmp eax, 2
jbe 0x42dfe1
cmp eax, 4
jbe 0x42ded2
cmp eax, 5
je 0x42dfe1
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44a7a0]
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 + 0x44a7a0]
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 0x42de51
test byte [ebp + 0x10], 8
je 0x42de51
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44a7a0]
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 0x42e060
test byte [ebp + 0x10], 1
je 0x42e060
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 0x42e049
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00420250
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44a7a0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0042ef02
pop ecx
jmp 0x42dbc7
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042e42b
add esp, 0x10
or eax, edx
je 0x42dfe1
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042e42b
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x42dcc1
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00427491
add esp, 0xc
cmp eax, 0xffffffff
je 0x42dcc1
cmp eax, 2
je 0x42df85
cmp eax, 3
jne 0x42dfd3
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x42df85
mov byte [ebp - 2], 1
jmp 0x42dddf
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42dddf
cmp eax, 2
jbe 0x42dfe1
cmp eax, 4
ja 0x42ddd6
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042e42b
add esp, 0x10
or eax, edx
je 0x42dfe1
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042e42b
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x42dddf
jmp 0x42dcc1
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x42dfad
push dword [esi]
call fcn.004267d2
pop ecx
call fcn.0042022a
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x42e062
cmp eax, 0xfeff
jne 0x42dfd3
push ebx
push 2
push dword [esi]
call fcn.00426e85
add esp, 0xc
cmp eax, 0xffffffff
je 0x42dcc1
mov byte [ebp - 2], 2
jmp 0x42dddf
push ebx
push ebx
push dword [esi]
call fcn.00426e85
add esp, 0xc
jmp 0x42df77
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x42e001
dec eax
jne 0x42dddf
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x42e00f
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.0042eb8d
add esp, 0xc
cmp eax, 0xffffffff
je 0x42e035
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x42e00f
jmp 0x42dddf
push dword [esi]
call fcn.004267d2
pop ecx
call fcn.0042022a
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x42e062
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44a7a0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret