Griefers, force-op and malicious plugins
Someone has op they should not have, or a plugin gave players powers.
Remove op, check ops.json, remove unknown plugins, and roll back damage.
Before you start: Console access and a recent backup.
Step by step
- Turn on the whitelist (whitelist on) while you clean up.
- Open ops.json in Files and remove names you do not trust; run deop Name for each.
- Check plugins/ for jars you did not install and delete them; re-download the others from official pages.
- In LuckPerms, check who is in admin ranks (lp group admin listmembers) and remove unexpected users.
- Roll back damage with CoreProtect or restore a clean backup.
- Change your CoreX password and remove unknown sub-users in Users.
Check it worked: Only trusted people have op or admin, and plugins come from official sources.
Why it happens: Leaked op, backdoored plugins from untrusted sites, or a compromised staff account.
If you find a malicious plugin, tell support where it came from.
More guides on Security, abuse, and compromised accounts: