"sh -i" My server was hacked. How can i found hole on my server?

[Marko Lerota]

Oleg Rusanov <freebsd-security at molecon.ru> writes:

> Hello.
>
> My server was hacked. The CPU has been loaded on 99 % by "sh -i" process.
>  I found out that someone has started phpshell through a hole in one of phpbb forums.
>   Also has filled in scripts for flud and spam and "vadim script" in
>   "/tmp". I has made it noexec. Recently has found out the same process.
>    May be i have left again /tmp opened, or other hole may be.
>      What is better to do for clean my system?
>
> How can i found hole on my server?

Before formating try the rkhunter and nessus 

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