Check for failed logins in /var/log/messages
Check if the /etc/passwd file have been changed
Use commands like last, w and uptime.
2009/8/19 Eduardo Grosclaude eduardo.grosclaude@gmail.com
On Wed, Aug 19, 2009 at 1:57 AM, Bill Campbellcentos@celestial.com wrote:
You cannot trust tools like ``ps'', ``find'', ``netstat'', and ``lsof'' as these are frequently replaced by ones that are modified to hide the cracker's work.
As a corollary, the only safe way to audit a suspected system is booting your diagnostic tool from known good media (eg try a security Live CD distro)
-- Eduardo Grosclaude Universidad Nacional del Comahue Neuquen, Argentina _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos