1. Completely uninstall steam and rust.
2. open regedit. Find all entries by facepunch, steam and easyanticheat, delete them all.
3. download privazer and run a full scan and a full cleanup.
4. change your IP.
5. search regedit for machineguid and delete it. Restart PC it will give you a new GUID. (you may not be able to find machienguid, I wasn't able to. If so skip this step).
6.Download steam. Make a new account with a new e-mail address. Buy rust.
you got HWID banned probably follow this steps and like my post. and stop cheating unskilled bonobo