From owner-freebsd-security@FreeBSD.ORG Wed Aug 18 09:54:45 2004 Return-Path: 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 E13EB16A4CE for ; Wed, 18 Aug 2004 09:54:45 +0000 (GMT) Received: from pathfinder.roks.biz (roks.biz [82.207.80.37]) by mx1.FreeBSD.org (Postfix) with ESMTP id A1D6843D58 for ; Wed, 18 Aug 2004 09:54:42 +0000 (GMT) (envelope-from padla@roks.biz) Received: from admin.office.roks.biz (admin.office.roks.biz [192.168.100.103]) by pathfinder.roks.biz (8.12.11/8.12.11) with ESMTP id i7I9sLHv027779; Wed, 18 Aug 2004 12:54:21 +0300 (EEST) (envelope-from padla@pathfinder.roks.biz) Received: from admin.office.roks.biz (localhost.roks.biz [127.0.0.1]) i7I9sM7a000858; Wed, 18 Aug 2004 12:54:22 +0300 (EEST) (envelope-from padla@admin.office.roks.biz) Received: (from padla@localhost) by admin.office.roks.biz (8.12.11/8.12.11/Submit) id i7I9sLCV000857; Wed, 18 Aug 2004 12:54:21 +0300 (EEST) (envelope-from padla) Date: Wed, 18 Aug 2004 12:54:21 +0300 From: Nikolay Pavlov To: Justin Message-ID: <20040818095421.GA207@roks.biz> Mail-Followup-To: Nikolay Pavlov , Justin , freebsd-security@freebsd.org References: <411CCAAE.7020505@beco.hu> <200408172301.28844.freebsd@alt-network.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200408172301.28844.freebsd@alt-network.com> User-Agent: Mutt/1.4.2.1i cc: freebsd-security@freebsd.org Subject: Re: sequences in the auth.log X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Security issues [members-only posting] List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Aug 2004 09:54:46 -0000 Hi, Justin On Tuesday, 17 August 2004 at 23:01:28 -0500, Justin wrote: > I'm seeing the same thing in my log. It makes me think it is a virus because > test, guest, and admin are not normal unix users. And I'm too. But I think that this is a some kind of Linux worm. The first record in my auth.log dated on Jul 23 01:48:30 Nmap identificates all hosts (already more than ten) in my auth.log as "Linux 2.4.0 - 2.5.20, Linux 2.4.20 (Itanium), Linux 2.4.20 - 2.4.22 w/grsecurity.org patch" Best regards, Nikolay Pavlov.