Hi. First of all I'm not sure this is directly related to ISPConfig. I noticed a 500 Internal Error on a website with medium traffic ~50k per week. After connected via FTP and there were around 10000 autogenerated(?) files in main web named like that: The early ones was 500mb each and around the end 0bytes(probably because the disk was full). I deleted the files(some of them are saved locally and they seem binary files) and reboot the server. I also checked the virtuozzo server resources and there is up-normally high CPU load. Some times over 80% sometimes under 15%. After that I run chkrootkit and rkhunter with no primary warnings. chkrootkit reported nothing found except: and rkhunter reported no worms or rootkits but those warnings Its is a VPS server and the service company said that the haven't changed anything(but they have claimed that before and wasn't true)... The last version of ISPConfig is installed and I update Debian Jessie every 15 days. Any help is appreciated...
The core files are not from ispconfig, they are probably crash dump files, see here: http://www.simplemachines.org/community/index.php?topic=88288.0 You should check the error.log file of the website and the global apache error.log at the time when such a file got generated to see what caused it.
