spammer on server

[hardbrasil]

hello fellas,

i have an spammer on server and i dont know how to stop him...

- I stop postfix, few minutes its enable again (automatic)...
- I had disable php mail for all domains
- I have Outgoing mail control -> No attempts to exceed limits

its send a lot of emails, 40 emails per second,

my data center blocked the port 25 but the emails are on queue...

please, i need a help

 

[Alvin_Allen]

I would recommend following this KB: https://kb.plesk.com/en/114845

 

[kenneth-vkd]

We normally use Linux Malware Detect and have a cron job running every hour to scan all site files. Has been working fine for a long time.
Also it would be a good idea to invest in some kind of security software suite for linux servers as this can also help with the issue.