On Fri, 27 Oct 2006, Jonathan Ellis wrote:
On Fri, 27 Oct 2006 13:54:07 -0600, "Daniel" <[EMAIL PROTECTED]>
said:
There was a successful ssh attack on one of our boxes. We need to allow
ssh
access to those outside the organization. The attacker put a homegrown
rootkit on the server. The rootkit was stopped, but since then ssh has
been
logging to /var/log/messages. The relavent configuration files I know
about
(/etc/ssh/sshd_config, /etc/ssh/ssh_config, /etc/syslog) are the same a
server that I works. /var/log/secure is not getting any messages. What
can
I do to restore ssh to its previous state without reinstalling it?
You should reinstall; if you had a rootkit installed, you have no idea
what else is compromised.
Indeed. And if you don't believe us, ask Ken Thompson:
http://www.acm.org/classics/sep95/
(He came to a security talk I gave the other day. w00t!)
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