configuration服务器防火墙：垃圾邮件我的电子邮件| 本地主机上的lfd：在用户www-data下运行的可疑进程

我刚刚安装并configuration了CSF，并且收到了包含此消息的垃圾邮件100个。

lfd on localhost: Suspicious process running under user www-data Time: Wed May 23 01:05:52 2012 +0200 PID: 8503 Account: www-data Uptime: 118 seconds Executable: /usr/lib/apache2/mpm-prefork/apache2 Command Line (often faked in exploits): /usr/sbin/apache2 -k start Network connections by the process (if any): tcp6: 0.0.0.0:80 -> 0.0.0.0:0 Files open by the process (if any): 

有谁知道如何解决？