Function at 0x600589
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 0x6005b8
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x6005c2
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00603893
test eax, eax
pop ecx
je 0x6005dd
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.005e5b38
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.005efa41
test eax, eax
pop ecx
je 0x6005f8
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.005e5b38
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x600615
test ecx, 0x74000
jne 0x600611
cmp dword [ebp - 0x24], eax
je 0x600615
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x60066f
dec eax
je 0x600659
dec eax
je 0x600654
call fcn.005e61fa
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.005e61e7
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.005e5c34
add esp, 0x14
jmp 0x600c21
mov dword [ebp - 8], edx
jmp 0x600672
test cl, 8
je 0x600666
test ecx, 0x70000
jne 0x600654
mov dword [ebp - 8], 0x40000000
jmp 0x600672
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x6006b3
sub eax, ecx
je 0x6006aa
sub eax, ecx
je 0x6006a1
sub eax, ecx
je 0x600698
sub eax, 0x40
jne 0x60062e
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x6006b6
mov dword [ebp - 0x10], 3
jmp 0x6006b6
mov dword [ebp - 0x10], 2
jmp 0x6006b6
mov dword [ebp - 0x10], 1
jmp 0x6006b6
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 0x600709
je 0x600700
cmp eax, ebx
je 0x600700
cmp eax, edi
je 0x6006f7
cmp eax, 0x200
je 0x60077c
cmp eax, 0x300
jne 0x60062e
mov dword [ebp - 0x14], 2
jmp 0x600726
mov dword [ebp - 0x14], 4
jmp 0x600726
mov dword [ebp - 0x14], 3
jmp 0x600726
cmp eax, 0x500
je 0x60071f
cmp eax, 0x600
je 0x60077c
cmp eax, edx
jne 0x60062e
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x60074a
mov ecx, dword [0x6dab9c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x60074a
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x600766
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x600766
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x60076f
or dword [ebp - 0xc], edi
test al, 0x20
je 0x600785
or dword [ebp - 0xc], 0x8000000
jmp 0x600790
mov dword [ebp - 0x14], 5
jmp 0x600726
test al, 0x10
je 0x600790
or dword [ebp - 0xc], 0x10000000
call fcn.005fd151
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x6007b6
call fcn.005e61fa
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.005e61e7
mov dword [eax], 0x18
jmp 0x600844
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 0x600850
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x60081c
test byte [ebp + 0x10], 1
je 0x60081c
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 0x600850
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6dba60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.005e620d
pop ecx
call fcn.005e61e7
mov eax, dword [eax]
jmp 0x600cdd
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x6008a1
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6dba60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.005e620d
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x600844
call fcn.005e61e7
mov dword [eax], 0xd
jmp 0x600844
cmp eax, 2
jne 0x6008ac
or byte [ebp - 1], 0x40
jmp 0x6008b5
cmp eax, 3
jne 0x6008b5
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.005fcf20
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x6dba60]
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 + 0x6dba60]
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 0x60098a
test cl, 0x80
je 0x600a5a
test byte [ebp + 0x10], 2
je 0x60098a
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.005eeaf4
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x600949
call fcn.005e61fa
cmp dword [eax], 0x83
je 0x60098a
push dword [esi]
call fcn.005f8bae
jmp 0x600843
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.005eec42
add esp, 0xc
test eax, eax
jne 0x60097a
cmp byte [ebp - 4], 0x1a
jne 0x60097a
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00603623
add esp, 0xc
cmp eax, edi
je 0x60093d
push ebx
push ebx
push dword [esi]
call fcn.005eeaf4
add esp, 0xc
cmp eax, edi
je 0x60093d
test byte [ebp - 1], 0x80
je 0x600a5a
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x6009b2
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x6009af
or dword [ebp + 0x10], edi
jmp 0x6009b2
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x6009ff
cmp eax, 0x10000
je 0x6009eb
cmp eax, 0x14000
je 0x6009eb
cmp eax, 0x20000
je 0x6009f9
cmp eax, 0x24000
je 0x6009f9
cmp eax, 0x40000
je 0x6009e5
cmp eax, 0x44000
jne 0x600a02
mov byte [ebp - 2], 1
jmp 0x600a02
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x600a02
mov byte [ebp - 2], 2
jmp 0x600a02
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x600a5a
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x600a5a
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x600bb4
cmp eax, 0x80000000
je 0x600b7b
cmp eax, ecx
jne 0x600a5a
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x600a5a
cmp eax, 2
jbe 0x600c5c
cmp eax, 4
jbe 0x600b4d
cmp eax, 5
je 0x600c5c
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6dba60]
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 + 0x6dba60]
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 0x600acc
test byte [ebp + 0x10], 8
je 0x600acc
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6dba60]
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 0x600cdb
test byte [ebp + 0x10], 1
je 0x600cdb
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 0x600cc4
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.005e620d
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6dba60]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.005fcf9d
pop ecx
jmp 0x600843
push 2
push ebx
push ebx
push dword [esi]
call fcn.005fd2f0
add esp, 0x10
or eax, edx
je 0x600c5c
push ebx
push ebx
push ebx
push dword [esi]
call fcn.005fd2f0
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x60093d
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.005eec42
add esp, 0xc
cmp eax, 0xffffffff
je 0x60093d
cmp eax, 2
je 0x600c00
cmp eax, 3
jne 0x600c4e
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x600c00
mov byte [ebp - 2], 1
jmp 0x600a5a
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x600a5a
cmp eax, 2
jbe 0x600c5c
cmp eax, 4
ja 0x600a51
push 2
push ebx
push ebx
push dword [esi]
call fcn.005fd2f0
add esp, 0x10
or eax, edx
je 0x600c5c
push ebx
push ebx
push ebx
push dword [esi]
call fcn.005fd2f0
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x600a5a
jmp 0x60093d
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x600c28
push dword [esi]
call fcn.005f8bae
pop ecx
call fcn.005e61e7
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x600cdd
cmp eax, 0xfeff
jne 0x600c4e
push ebx
push 2
push dword [esi]
call fcn.005eeaf4
add esp, 0xc
cmp eax, 0xffffffff
je 0x60093d
mov byte [ebp - 2], 2
jmp 0x600a5a
push ebx
push ebx
push dword [esi]
call fcn.005eeaf4
add esp, 0xc
jmp 0x600bf2
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x600c7c
dec eax
jne 0x600a5a
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x600c8a
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.005f981e
add esp, 0xc
cmp eax, 0xffffffff
je 0x600cb0
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x600c8a
jmp 0x600a5a
push dword [esi]
call fcn.005f8bae
pop ecx
call fcn.005e61e7
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x600cdd
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6dba60]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret