From owner-freebsd-security Tue Jan 28 8:36:57 2003 Delivered-To: freebsd-security@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E314637B401 for ; Tue, 28 Jan 2003 08:36:53 -0800 (PST) Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2BAFF43F79 for ; Tue, 28 Jan 2003 08:36:53 -0800 (PST) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (IDENT:brdavis@localhost.localdomain [127.0.0.1]) by odin.ac.hmc.edu (8.12.3/8.12.3) with ESMTP id h0SGaj6F006112; Tue, 28 Jan 2003 08:36:45 -0800 Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.12.3/8.12.3/Submit) id h0SGajco006111; Tue, 28 Jan 2003 08:36:45 -0800 Date: Tue, 28 Jan 2003 08:36:45 -0800 From: Brooks Davis To: Sascha Luck Cc: freebsd-security@FreeBSD.ORG Subject: Re: chkrootkit & FBSD-5 Message-ID: <20030128083645.A4998@Odin.AC.HMC.Edu> References: <20030128085617.L167@woody.ops.uunet.co.za> <200301281516.16413.bofh@online.ie> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-md5; protocol="application/pgp-signature"; boundary="x+6KMIRAuhnl3hBn" Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <200301281516.16413.bofh@online.ie>; from bofh@online.ie on Tue, Jan 28, 2003 at 03:16:07PM +0000 X-Virus-Scanned: by amavisd-milter (http://amavis.org/) on odin.ac.hmc.edu Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org --x+6KMIRAuhnl3hBn Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jan 28, 2003 at 03:16:07PM +0000, Sascha Luck wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 >=20 > Hello all, >=20 > on my CURRENT boxes, chkrootkit (v0.38) reports the following binaries=20 > as INFECTED: >=20 > chfn > chsh > date > ls > ps >=20 > as well as 7 hidden PIDs. >=20 > recompiling/reinstalling the binaries seems to have no effect. I'm=20 > tempted to regard these as false positives - anyone else notice this=20 > behaviour? Someone else mentioned it to me. They now contain the string "/bin/sh" which chkrootkit looks for. I'd be curious to know why they do. -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --x+6KMIRAuhnl3hBn Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE+NrGcXY6L6fI4GtQRAtbvAKDIMdg8UHiADe+HBuJXQje0RtlxUACcCJE7 JYSHFkCFsbVLwlH812MnOXQ= =Q/nb -----END PGP SIGNATURE----- --x+6KMIRAuhnl3hBn-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message