Date: Wed, 28 Jun 2006 08:57:51 -0400 From: Bill Moran <wmoran@collaborativefusion.com> To: "Brent" <mrb@bmyster.com> Cc: questions@freebsd.org Subject: Re: how to check for a compromised system Message-ID: <20060628085751.850e7944.wmoran@collaborativefusion.com> In-Reply-To: <20060628122920.M72053@bmyster.com> References: <20060628122920.M72053@bmyster.com>
next in thread | previous in thread | raw e-mail | index | archive | help
In response to "Brent" <mrb@bmyster.com>: > Hello, > Im running several servers all ranging from FBSD 4.11 through the 5.4 release > , patched of course. MY question is how do i check a system to see if has been > compromised ? I have already run a current version "chkrootkit" & found nothing. You need to plan ahead and install Samhain (or equiv) on the machines _before_ they're deployed so you can detect unauthorized changes. > The symptom im seeing is yesterday all of a sudden the root user was removed > from the /etc/passwd file & Im not sure on how to track down what happened. I > managed to recover from this. Are there any other tools that i can use to > track down say who did what on the box? files that may have changed & time & > dates... Yeah, Samhain and its class of software. Unfortunately, you have to have it set up _before_ this happens in order for it to be useful. -- Bill Moran Collaborative Fusion Inc.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20060628085751.850e7944.wmoran>