From owner-freebsd-security@FreeBSD.ORG Fri Aug 13 14:12:13 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 B800216A4CE for ; Fri, 13 Aug 2004 14:12:13 +0000 (GMT) Received: from imap.drweb.ru (blg.drweb.ru [81.211.95.163]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1780243D31 for ; Fri, 13 Aug 2004 14:12:13 +0000 (GMT) (envelope-from nikolaj@drweb.ru) Received: by imap.drweb.ru (postfix, from userid 1007) id 6A6EC550F; Fri, 13 Aug 2004 18:12:11 +0400 (MSD) Received: from [192.168.100.12] (nip [192.168.100.12]) by imap.drweb.ru (postfix) with ESMTP id 01D0C5505 for ; Fri, 13 Aug 2004 18:12:11 +0400 (MSD) Date: Fri, 13 Aug 2004 18:12:11 +0400 From: "Nikolaj I. Potanin" To: freebsd-security@freebsd.org In-Reply-To: <411CCAAE.7020505@beco.hu> References: <411CCAAE.7020505@beco.hu> Message-Id: <20040813181022.F864.NIKOLAJ@drweb.ru> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.11.02 [en] X-Spam-Level: X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on imap.drweb.ru X-Spam-Report: * -4.9 BAYES_00 BODY: Bayesian spam probability is 0 to 1% * [score: 0.0000] * 0.3 AWL AWL: Auto-whitelist adjustment X-Spam-Status: No, hits=-4.6 required=6.0 tests=AWL,BAYES_00 autolearn=ham version=2.63 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: Fri, 13 Aug 2004 14:12:13 -0000 Hello, Someone is trying to pick-up a password for these accounts. Restrict your ssh service to your trusted networks only. > Hi all, > I found similar sequences in the > /var/auth.log files of freebsd boxes, I supervise.: > Aug 13 13:56:08 www sshd[26091]: Illegal user test from 165.21.103.20 > Aug 13 13:56:11 www sshd[26093]: Illegal user guest from 165.21.103.20 > Aug 13 13:56:15 www sshd[26096]: Illegal user admin from 165.21.103.20 > Aug 13 13:56:18 www sshd[26103]: Illegal user admin from 165.21.103.20 > Aug 13 13:56:21 www sshd[26105]: Illegal user user from 165.21.103.20 > Aug 13 13:56:25 www sshd[26107]: Failed password for root from > 165.21.103.20 port 39678 ssh2 > Aug 13 13:56:28 www sshd[26109]: Failed password for root from > 165.21.103.20 port 39760 ssh2 > Aug 13 13:56:32 www sshd[26111]: Failed password for root from > 165.21.103.20 port 39836 ssh2 > Aug 13 13:56:35 www sshd[26113]: Illegal user test from 165.21.103.20 > Aug 13 14:25:36 www sshd[26485]: Illegal user test from 202.28.120.57 > Aug 13 14:25:41 www sshd[26487]: Illegal user guest from 202.28.120.57 > > What are these? -- Nikolaj I. Potanin, SA http://www.drweb.ru ID Anti-Virus Lab (SalD Ltd) nikolaj@drweb.ru St. Petersburg, Russia ph.: +7-812-3888624