What you have is called a game ban and cheats are not necessary.

FAQ:
Can you tell me why I was banned?
No. We do not disclose the reason for your game ban.

Counter-Strike 2 game bans are permanent, non-negotiable, and cannot be removed by Steam Support.

引用自 ハヌルアイス：

why my acc get vac ban for forever? i didn't not use cheats because in this acc i had prime and knife whyyyyyyyyyyyyy???????????

1 game ban on record | Info
0 day(s) since last ban

this is a community only. we can guess one a few reasons for a gameban. So go to your profile and click on the info button

引用自 ハヌルアイス：

in this acc i had prime and knife

You can just buy prime again, its only $14.99 and your knife is worthless these days.