From: Dwight Hubbard <dwight.hubbard@efausol.com>
To: Chris <chris@deksai.com>
Cc: linux-admin@vger.kernel.org
Subject: Re: deleted perl hacks in /tmp
Date: Thu, 15 Apr 2010 18:42:04 -0700 [thread overview]
Message-ID: <1271382124.25992.7.camel@dhnetboook> (raw)
In-Reply-To: <20100415213631.GA1251@chris-laptop.a2hosting.com>
Have you tried mounting /tmp with the noexec flag?
On Thu, 2010-04-15 at 17:36 -0400, Chris wrote:
> I have some web servers which occasionally have hacks that are uploaded that
> change their name to look like apache and somehow get apache to send requests
> to them. The result is that people somewhat randomly get pages advertising
> self enhancing drugs etc. The hacks are perl scripts, but they are run from
> /tmp and then deleted. Trying to get anything out of /proc/pid/fd/whatever
> just yields an empty file. Anyone have any ideas on how to recover the
> original script? Right now I just have a process checking for them and
> whacking them when I see them, but I'd like to know more about them to actually
> prevent them from happening.
>
> Any thoughts would be appreciated!
>
> Chris
> --
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next prev parent reply other threads:[~2010-04-16 1:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-15 21:36 deleted perl hacks in /tmp Chris
2010-04-16 1:42 ` Dwight Hubbard [this message]
2010-04-16 4:43 ` Alex
2010-04-16 9:28 ` terry white
2010-04-16 15:45 ` Chris
2010-04-16 20:38 ` Herta Van den Eynde
2010-04-16 21:27 ` Chris
2010-05-01 19:27 ` Alex
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