1. Yes it is intirily possible.
2. It disables VAC so you should get a ban.
3. In my experience there is no risk of having the cheat on your computer if you don't use it.
4. Not sure what you mean by "sequals"
5. VAC will now give you an error if you try to boot a cheat from USB, just don't bother.
6. If csgo had an update just wait for the new hacks to come out.