[CentOS] attack

R-Elists
Thu, 24 Dec 2009 12:58:15 -0000

> Hi,
>
> i have Check my tmp directory and subdirectorys for std,
> udp.pl no file exist.  Also i have check /etc/passwd and
> /etc/shadow for unusual users.
>
> regards

Manu,

forgive me if i missed it when i deleted several of the posts in the thread
yet how hard is it to check all the pertinent logfiles?

unless this is a very sophisticated compromise that hides, moves, or deletes
things, or the management system is trash, the info you need is
"typically"
in one or more of the various logfiles on the system

something as simple

man less

less /var/log/httpd/access_log

less /var/log/httpd/error_log

replace appropriate logfile names as necessary...

in general, there are many you can look at to gain some wisdom...

 - rh